SAFEPATH Operation and Installation Manual Models: SAPE-1AB SAPE-1AR SAPE-2AB SAPE-2AR 273 Branchport Avenue Long Branch, NJ 07740 Telephone: 800-631-2148 Fax: 738-222-8707 www.wheelockinc.com Part Number A83361 Revision C P83331 Thank you for using our products. Use this product according to this instruction manual. Please keep this instruction manual for future reference.
ANY MATERIAL EXTRAPOLATED FROM THIS DOCUMENT OR FROM WHEELOCK MANUALS OR OTHER DOCUMENTS DESCRIBING THE PRODUCT FOR USE IN PROMOTIONAL OR ADVERTISING CLAIMS, OR FOR ANY OTHER USE, INCLUDING DESCRIPTION OF THE PRODUCT'S APPLICATION, OPERATION, INSTALLATION AND TESTING IS USED AT THE SOLE RISK OF THE USER AND WHEELOCK WILL NOT HAVE ANY LIABILITY FOR SUCH USE. Conventions Used in This Manual This manual uses the following conventions for notes, cautions, and warnings.
The SAFEPATH panel does not sense an emergency condition or hazardous fires; it is only a part of a system that does sense such conditions. The SAFEPATH panel, when activated by a control panel, provides a pre-recorded tone and/or voice message(s) to notification appliances.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Notification equipment cannot last forever. Even though SAFEPATH is expected to last up to ten years, any of its parts or components could fail before then. Therefore testing of the entire protective signaling system, including the SAFEPATH panel, all notification equipment, as well as all messages and their output channel, and priority assignment, must be conducted at least twice each year, or more often as required by local, state and federal codes, regulations and laws, by qualified personnel.
CONTENTS Introduction.................................................................................................................................……………………………....... ..... Operation.....................................................................................................................……….......................………………… ….... Operator's Console.......................................................................................................................…………………………........
Troubleshooting....................................................................................................................................……….………………… ..... Procedures A, B, C, D.....................................................................................................................………...…………………... Procedures E, F, G, H......................................................................................................................………...………………….. Procedure I, J, K, L.................
List of Figures Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Figure 24 Figure 25 Figure 26 Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure Figure 27 28 29 30 31 32 33 34 35 36 37 38 39 Basic Capabilities of the SAFEPATH Panel.......................................….................….……...
Introduction SAFEPATH is a stand alone voice evacuation/emergency message panel capable of providing up to four zones of audible and visual signals. Figure 1 illustrates the basic capabilities of the SAFEPATH panel. The SAFEPATH panel can play back recorded voice, tones, and other sounds when instructed to do so by contact closure or an instruction over a serial link from other equipment. SAFEPATH panels configured with a DX-100 are playback only panels.
Figure 1. Basic Capabilities of the SAFEPATH Panel SAFEPATH Manual Rev.
OPERATION This chapter describes the operating characteristics of the SAFEPATH panel.
DX-200 Message Memory The DX-200 has the ability to store up to sixteen minutes of audio. The audio is stored digitally on up to eight memory I.C.'s. Each memory I.C. can store up to two minutes of audio messages. See Figure 6 for the socket locations S63 thru S70 on the DX-200 printed circuit board into which the eight memory I.C.'s, U63 thru U70, are inserted. These memory I.C.'s are commonly referred to as pseudo static random access memories ("PSRAM's", see PSRAM definition in glossary).
The following is an example of creating string files using the ADD command and the PAUSE command. The following voice messages are recorded into the indicated file numbers: “Welcome to Herbie’s” into file number 100 “Our fish are the freshest in town” into file number 101 Create a string file as follows: File 1: ADD 100, PAUSE 10 seconds, ADD 101, END When file number 1 is selected to play, “Welcome to Herbie’s”......(10 seconds of silence)......”Our fish are the freshest in town” will be played.
File Priority The priority of a file playing on one channel will not affect the priority of files playing on any other channel. Priority levels are 1 thru 5, 1 being highest, 5 being lowest. Priority 1 and Priority 2 files WILL interrupt any file with a lower priority that is playing through the same output channel. Priority 3 and Priority 4 files will NOT interrupt lower priority files but will begin playing immediately upon completion of any lower priority file.
System Pause The ability to have a pause between messages is provided. Having a pause between all playing messages prevents messages from “running together” and then being misunderstood. The system pause may be any value from 1 to 999 seconds. The system pause is programmed directly into SAFEPATH panels configured with a DX-200.
Visual Notification Appliance Output Line Supervision All visual notification appliance output lines are supervised. The lines are supervised for open circuits, short circuits, and ground faults when the output is de-energized; and ground faults only when the output is energized. Output line supervision requires a LISTED 10K end-of-line resistor to be installed on each output circuit and across the terminals of unused output circuits.
Back-Up Battery Requirements Table 1 below shows the amp-hour of battery Back-Up required for various system configurations. BACK-UP BATTERY REQUIREMENTS CAPACITY OF BACK-UP BATTERY REQUIRED (IN AMP HOURS) 4 HOURS 24 HOURS STANDBY 60 HOURS STANDBY STANDBY 15 MINUTES ALARM 15 MINUTES ALARM 24AH 48AH (Future) 24AH 48AH (Future) 24AH 72AH (Future) 24AH 72AH (Future) NUMBER OF AMPLIFIER MODULES INSTALLED 1 2 3 4 Table 1.
Operator Instructions The SAFEPATH panel provides an operator console for manually activating the panel. The operator console includes a microphone, a green “NORMAL” indicator, a yellow “TROUBLE” indicator, an “ACKNOWLEDGE” push-button switch, a “RESET” push-button, a “MANUAL/AUTOMATIC” switch, an “ALL-CALL” switch and four “ZONE SELECT” switches.
Figure 3. Operator’s Console SAFEPATH Manual Rev.
Message Recording WARNING: PROVIDE ALTERNATIVE SIGNALING MEANS WHILE REPROGRAMMING MESSAGES TO ASSURE ADEQUATE PROTECTION OF PEOPLE AND PROPERTY. FAILURE TO PROVIDE ALTERNATIVE SIGNALING MAY CAUSE PEOPLE TO NOT BE WARNED OF AN EMERGENCY CONDITION, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS. WHEELOCK EXPRESSLY DISCLAIMS ALL LIABILITY FOR THE CONTENT, CLARITY AND LANGUAGES OF, AND OUTPUT CHANNEL AND PRIORITY LEVEL ASSIGNED TO, ANY AND ALL MESSAGES.
Recording a Voice File WARNING: IF THE USER EXCEEDS THE AMOUNT OF AVAILABLE MESSAGE MEMORY WHILE RECORDING A VOICE FILE, PART OR ALL OF THE VOICE FILE WILL NOT BE RECORDED. IF PART OR ALL OF THE VOICE FILE IS NOT RECORDED, THE INTENDED MESSAGE WILL NOT BE PLAYED WHEN AND WHERE REQUIRED. THIS COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
The following instructions will enable the user to create a telephone string file, play the file back to verify its content, clarity, output channel assignment, and telephone numbers, and view file data to verify priority. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Select “PROGRAM FILE” from the main menu. Select “STRING” from the program file menu. Enter file number. Enter priority level. If no priority level is entered, the Series DX-200 will default to the lowest priority level (5). Enter channel number 1.
Single File Download Procedure 1. Select "TRANSFER FILE" from the main menu on the source Series DV-200. 2. Select “MESSAGE/STRING” from the next menu. 3. Select “FILE” from the next menu. 4. Enter file number of the file to be downloaded. 5. Repeat step 3 for all files which need to be downloaded. 6. Test the SAFEPATH panel to ensure that all files (messages, output channel assignments, and priority assignments) were transferred properly by activating all downloaded files.
Figure 5. DX-100 Module Illustration SAFEPATH Manual Rev.
Figure 6. DX-200 Module Illustration SAFEPATH Manual Rev.
Installation The lives of people depend upon your safe installation of the SAFEPATH panel. Please read, understand and carefully follow the specific installation instructions set forth below to avoid damage to the SAFEPATH panel and equipment connected to it. Installation should be conducted only by qualified persons in accordance with the procedures in this manual. WARNING: SHUT OFF ALL POWER BEFORE STARTING THE INSTALLATION. ELECTRICAL SHOCK CAN CAUSE DEATH OR SERIOUS INJURY.
Wiring Guidelines Although the SAFEPATH products incorporate signal verification and noise filtering circuitry on their inputs, induced voltages or noise on the input wiring can cause improper operation. Therefore, use shielded twisted pair wire for all dry contact input wiring. The shield of each cable should be connected only at one end. Each shield of each cable that connects to the SAFEPATH panel is to connect to the grounding points provided near the knockout locations on the chassis (see Figure 7).
Figure 7. SAFEPATH Panel Mounting SAFEPATH Manual Rev.
Field Wiring Before installation, the system specifier must determine the proper wire gauge for all field wiring. The field wiring is broken down into two categories, inputs and outputs. NOTE: All field wiring shall conform to applicable codes and standards including NFPA, UL, local, state, county, province, district and federal codes and standards. SAFEPATH Field Wiring Connection All SAFEPATH wiring terminals are designed to accept #22 AWG to #12 AWG wiring (one wire per terminal).
RS-232 Port Wiring One RS-232 port is provided. It is a ten wire interface. The pin out of the RS-232 port is shown in Figure 13. The field wiring required will be a function of the protocol implemented. See Appendix A (and B, if applicable) for protocol information. For RS-232 wiring, connect an RS-232 cable (not supplied) from the control panel to the J2 female socket on the left-side bottom of the DX-100/DX-200. Current RS-232 specifications limit RS-232 communication paths to 50 feet in length.
System Trouble Output Contact Wiring One system trouble output contact is provided. It is Form C and is rated for 0.5 amps at 24VDC, resistive load. A detail of the system trouble output contact terminal connections is shown in Figure 20. The contact in Figure 20 is shown in the trouble position. Determination of wire gauge for the system trouble output contact wiring should consider all factors, including wire loop length, maximum current capacity, and maximum voltage drop allowable.
Figure 8. Typical System Block Diagram SAFEPATH Manual Rev.
Figure 9. SAFEPATH Field Wiring Input/Output Terminal Block Locations SAFEPATH Manual Rev.
Figure 10. Terminal Block Layout For SAFEPATH Message Activation Inputs SAFEPATH Manual Rev.
Figure 11. Power Supply, Battery Charger And Earth Ground Terminal Blocks SAFEPATH Manual Rev.
Figure 12. Dry Contact Input Wiring Pin 1 2 3 4 5 6 7 8 20 22 * ** ** Chassis Ground TD (Transmit Date) RD (Receive Data) * RTS (Request To Send) * CTS (Clear To Send) * DSR (Data Set Ready) COM (Signal Ground) * DCD (Data Carrier Detect) * DTR (Data Terminal Ready) * RI (Ring Indicator) Optional (Not used with standard protocol) Not Connected Internally to Signal Ground Figure 13. RS-232 Port Pin Out SAFEPATH Manual Rev.
Figure 14. RS-485 Port Pin Out Figure 15. Typical AC Input Voltage Wiring Figure 16. Typical Battery Wiring SAFEPATH Manual Rev.
Figure 17. Typical Earth Ground Wiring Figure 18. Output Terminal Block Detail SAFEPATH Manual Rev.
Figure 19. Alarm Output Contact Connection Diagram Figure 20. System Trouble Output Contact Connection Diagram Figure 21. Trouble Audible Output Wiring Diagram CAUTION: SAFEPATH Manual Rev. C April 1999 Do not loop wire under terminals. Break wire run to provide supervision of connection.
Figure 22. Visual Notification Appliance Output Wiring Diagram CAUTION: Do not loop wire under terminals. Break wire run to provide supervision of connection. Figure 23. Audio Notification Appliance Output Wiring Diagram Using Audio Only Appliances In Central Amplified Applications CAUTION: Do not loop wire under terminals. Break wire run to provide supervision of connection. Figure 24.
Figure 25. Notification Appliance Output Wiring Diagram Using Combination Audio/Visual Appliances In Central Amplified Applications CAUTION: Do not loop wire under terminals. Break wire run to provide supervision of connection. Figure 26. Notification Appliance Output Wiring Diagram Using Combination Audio/Visual Appliances In Amplified Speaker Applications CAUTION: SAFEPATH Manual Rev. C April 1999 Do not loop wire under terminals. Break wire run to provide supervision of connection.
Figure 27. Optional Remote Microphone Station (RMS-1) Wiring Diagram SAFEPATH Manual Rev.
Field Wiring Checkout Refer to NFPA for guidelines on testing signaling system wiring. CAUTION: Do not connect input voltage to any equipment until the field wiring has been inspected and approved. Verify that the field wiring is in full agreement with this manual and with the detailed wiring layout prepared for this installation. Ensure that no unwanted voltages are present on circuit conductors and ground. Test all ungrounded connectors for electrical isolation from ground.
Ground Fault Detection Sensitivity Adjustment The resistance at which a ground fault condition will be indicated is adjustable. The ground fault detection sensitivity can be adjusted between 40K and 500K Ohms. Selecting a high sensitivity (high resistance) will have a fast response to ground fault conditions, but may also cause a high number of false trouble conditions.
Installation and Care of Sealed Lead Acid Batteries Sealed lead acid batteries are designed to operate in standby service for approximately five years. This is based upon a normal service condition where there is an ambient of 20 degrees C (68 degrees F) and batteries are completely discharged once every three months. LENGTH OF SERVICE LIFE WILL BE DIRECTLY EFFECTED BY THE NUMBER OF DISCHARGE CYCLES, DEPTH OF DISCHARGE, AND AMBIENT TEMPERATURE. Use Guidelines: 1.
Power Calculations It is necessary to calculate the current draw for battery back-up requirements. The current requirements depend on the system configuration and the options installed. The total current is the sum of the currents of all the components in the system.
Note 4: If no amplifier is installed in the slot then the current for that amplifier is zero. If there is an amplifier the alarm current depends on the model of the amplifier installed in the slot and the signal used for evacuation. Model SALL-15S Series SAA-10S/SE Series SAA-40S/SE Series SAA-80S/SE Series Alarm Current full power SIN wave as per UL testing The sum of the currents of the self amplified speakers.
Troubleshooting WARNING: SOME ELECTRONIC COMPONENTS STORE A HIGH VOLTAGE CHARGE, EVEN THOUGH POWER IS NOT CONNECTED, AND CAN CAUSE A DANGEROUS SHOCK IF TOUCHED. DO NOT TOUCH EXPOSED CIRCUITRY ON THE SAFEPATH PANEL UNLESS THE CIRCUITRY HAS DISCHARGED FOR ONE HOUR AND A SAFE DISCHARGE PROCEDURE IS USED. WARNING: PROVIDE UL REQUIRED ALTERNATIVE SIGNALING MEANS DURING TROUBLE CONDITIONS AND SERVICING TO ASSURE ADEQUATE PROTECTION OF PEOPLE AND PROPERTY.
The SAFEPATH panel has trouble location indicators which provide information as to what trouble condition has been detected and on which part of the system the trouble is located. Figure 28 shows the location of all trouble location indicators within the SAFEPATH panel with DX-100. Figure 29 shows the location of all trouble location indicators within the SAFEPATH panel with DX200.
Figure 28. SAFEPATH With DX-100 Trouble Location Indicator Locations SAFEPATH Manual Rev.
Figure 29. SAFEPATH With DX-200 Trouble Location Indicator Locations BEFORE PERFORMING ANY OF THE FOLLOWING TROUBLESHOOTING PROCEDURES, THE PRELIMINARY TROUBLESHOOTING INFORMATION AT THE BEGINNING OF THIS “TROUBLESHOOTING” SECTION MUST BE READ, UNDERSTOOD, AND FOLLOWED. SAFEPATH Manual Rev.
Procedure A If the green NORMAL indicator is off, the yellow TROUBLE indicator is off, and no module indicators are on, a power loss condition has occurred. A power loss condition may be caused by: 1. 2. 3. 4. 5. 6. 7. 8. 9. A blown fuse on the SAPS module. A blown fuse on the SADC module Loss of AC input power and battery back-up power. Faulty internal wiring between the SAPS module and the SABC module. Faulty internal wiring between SABC module and the backplane module. Faulty SAPS module.
Procedure E If the green NORMAL indicator is off, the yellow TROUBLE indicator is on, and the BAT OPEN indicator on the SABC module is on, a battery trouble condition has occurred. A battery trouble condition may be caused by: 1. 2. 3. A fuse on the SABC module is blown. Faulty field wiring to batteries. A faulty SABC module. Perform the following: 1. 2. 3. Verify that all fuses on the SABC module are intact. Verify that the field wiring to the batteries is intact. Replace the SABC module.
Procedure I If the green NORMAL indicator is off, the yellow TROUBLE indicator is on, and the AMP indicator on the SACM-4 module is on, an amplifier trouble condition has occurred. An amplifier trouble condition may be caused by: 1. 2. 3. 4. Faulty internal wiring between the backplane module and the digital voice module. A faulty SACM-4 module. A faulty SADC module. A faulty backplane module. Perform the following: 1.
Procedure M If the digital voice module system normal LED, the digital voice module system trouble LED, and the digital voice module trouble indicator LED are off, the digital voice module may be completely inoperative due to power loss. This condition is caused by: 1. Input voltage is not within proper range or polarity is incorrect. 2. Blown fuse on the digital voice module (F1 on DX-100, F2 on DX-200). 3. One or more LED's are broken. Perform the following: 1.
Procedure P If the digital voice module system normal LED is off, the digital voice module system trouble LED is on, and the digital voice module trouble indicator LED flashes a 1-blink pattern, a memory retention battery trouble has been detected. A memory retention battery trouble error may be caused by: 1. 2. 3. Disconnected memory retention battery. Failed memory retention battery. Failed battery charging or supervision circuitry on the digital voice module.
Procedure R If the digital voice module system normal LED is off, the digital voice module system trouble LED is on, and the digital voice module trouble indicator LED flashes a 3-blink pattern, an input error has occurred. An input error may be caused by: 1. 2. 3. 4. 5. Open field wiring. No end-of-line resistor on an input line. Inputs on digital voice module are also being used when Series DV-EM's are being used. Previously installed Series DV-EM is no longer detected by digital voice module.
Procedure T If the digital voice module system normal LED is off, the digital voice module system trouble LED is on, and the digital voice module trouble indicator LED flashes a 5-blink pattern, a serial port communication error has occurred. A serial port communication error may be part caused by: 1. 2. 3. 4. 5. Invalid command received. Incorrect baud rate. Incorrect data format. Parity error. Framing error.
Procedure V If the green system normal LED is off, the amber system trouble LED is on, and the amber trouble indicator LED flashes a 7-blink pattern, a telephone trouble has been detected. A telephone trouble error may be caused by: 1. Blown fuse on the digital voice module (F2 on the DX-100, F1 on the DX-200). 2. Incorrect call progress tones on telephone line. 3. Insufficient off hook voltage on telephone line. 4. Disconnect telephone line. 5.
Periodic Testing SAFEPATH periodic testing, including the SAFEPATH panel, all notification equipment and all messages, including their audibility and intelligibility, content and language, sequence, output channel, and priority assignment, must be conducted frequently, at least twice each year, or more often as required by local, state and federal codes, regulations and laws, by qualified personnel to ensure proper operation of all equipment.
Module Description Introduction There are fifteen modules in the SAFEPATH product line. The fifteen modules are: 1. Supervised Audio System Mother Board (SAMB-A) 2. Supervised Audio System Common Control Module (SADC) 3. Supervised Audio System Amplifier/Signal Circuit Module (SAA) 4. Supervised Audio System Amplifier/Signal Circuit Module (SAA-10) 5. Supervised Audio System Amplifier/Signal Circuit Module (SAA-10E) 6. Supervised Audio System Amplifier/Signal Circuit Module (SAA-40A) 7.
Figure 30. Module Layout of the SAFEPATH Panel SAFEPATH Manual Rev.
Figure 31. SAFEPATH Panel Block Diagram SAFEPATH Manual Rev.
Supervised Audio System Mother Board (SAMB-A) The supervised audio system mother board (SAMB-A) provides all signal handling capabilities between the SADC and the amplifier modules, terminal blocks for output wiring, and connectors for handling signals between the SADC and the digital voice module and the SABC. The SAMB-A is illustrated in Figure 32. Up to four amplifier modules may be connected to the SAMB-A. The amplifier modules may be installed in any order in slots 1 through 4.
Supervised Audio System Common Control Module (SADC) The supervised audio system common control module (SADC) provides all of the control capabilities to the SAFEPATH panel. The controller module monitors the digital voice module (DX-100 or DX-200), the battery charger module (SABC), and the amplifier modules (SAA and SACM-4) for proper operation. The microphone is monitored for connection.
Figure 33. Supervised Audio System Common Control Module SAFEPATH Manual Rev.
Supervised Audio System Amplifier/Signal Circuit Module, 40 Watts (SAA) The supervised audio system amplifier/signal circuit module, 40 watts (SAA) provides audio amplification for the SAFEPATH system. The amplifier can be selected to have either a 25V or a 70.7V audio output. The amplifier contains a switching power supply, a linear amplifier, and supervision circuitry.
Figure 34. Supervised Audio System Amplifier/Signal Circuit Module, 40 Watts SAFEPATH Manual Rev.
Self Amplified Speaker Control/Signal Circuit Module, (SACM-4) The self amplified speaker control/signal circuit module, (SACM-4) provides audio output for the SAFEPATH system. The circuit module has a -5 dBm, 15 ohm audio output, a 24VDC, 2A speaker amplifier power output, and a 24VDC, 2A strobe output. The circuit module contains a linear amplifier and supervision circuitry.
Figure 35. Self Amplified Speaker Control/Signal Circuit Module SAFEPATH Manual Rev.
Supervised Audio System Power Supply Module (SAPS) The supervised audio system power supply module (SAPS) converts 120VAC line voltage to 24VDC output voltage. The power supply module is capable of converting up to 500W and its output is over current protected. There is one fuse on the printed circuit board, F1. Fuse F1 is the main fuse for the entire board. See Figure 36 for fuse location.
Supervised Audio System Battery Charger Module (SABC) The supervised audio system battery charger module (SABC) provides battery charging and supervision as well as AC power supervision for the SAFEPATH system. The SABC monitors three parameters: AC input power, battery wiring and battery voltage. When a low AC input power condition is detected, the PWR LOW indicator is illuminated. When a battery wiring open condition is detected, the BAT OPEN indicator is illuminated.
Digital Voice Module with Playback (DX-100) The digital voice module (DX-100) controls the message playback in the SAFEPATH system. When a dry contact closure or a serial port command initiates a file playing, the DX-100 signals the SADC to switch from the standby condition to an alarm condition for the zone indicated. The DX-100 can store up to 999 message files. Message files may be any combination of record or string files. Up to 8 minutes of messages may be stored in the DX-100’s EPROM message memory.
Digital Voice Module with Record and Playback (DX-200) The digital voice module (DX-200) controls the message playback in the SAFEPATH system. When a dry contact closure or a serial port command initiates a file playing, the DX-200 signals the SADC to switch from the standby condition to an alarm condition for the zone indicated. The DX-200 also has the capability of creating record or string files. The DX-200 can store up to 999 message files. Message files may be any combination of record or string files.
Figure 39. Digital Voice Module with Record and Playback (Main Board) SAFEPATH Manual Rev.
Technical Specifications Mechanical Dimensions (H x W x D) 36" by 24" x 6" Weight 90 pounds Enclosure 0.
Message File Activation Dry Contact Inputs 8 Dry contact inputs are provided on each digital voice module. A 300 millisecond minimum short across input is required to activate files. Input device must sink up to 10mA current with maximum 24VDC drop. Expansion Terminal Each DV-EM module has 32 dry contact inputs (same activation as above). Digital Command Through serial port, RS-232 or optional RS-485.
________ Glossary A acknowledge. A serial port command or a dry contact input which will cause a message file of priority level 4 or 5 that is continuously activated to stop repeating after having played at least once. activation. An input that causes a file to be selected and processed. C channel. An audio output path through which the digital voice module transmits message files to the audio system. Each digital voice module can have up to four channels. D DX-100.
Limited Warranty Wheelock products must be used within their published specifications and must be PROPERLY specified, applied, installed, operated, maintained and operationally tested in accordance with these instructions at the time of installation and at least twice a year or more often and in accordance with local, state and federal codes, regulations and laws.
