INC ® Installation and Operation Manual ADMS 44.22 AES Digital Matrix Switcher Firmware Version 1.2 or above Manual Update: 09/20/2007 Due to the dynamic nature of product design, the information contained in this document is subject to change without notice. Broadcast Tools, Inc., assumes no responsibility for errors and/or omissions contained in this document. Revisions of this information or new editions may be issued to incorporate such changes.
ADMS 44.22 Installation and Operation Manual Table of Contents Section Title 1 2 Page # Functional Description ......................................................................................5 1.1 Introduction............................................................................................5 1.2 DSP Processing......................................................................................6 1.2.1 Matrix Switcher .......................................................................
ADMS 44.22 Installation and Operation Manual Table of Contents - contʼd 3 Front Panel Operation ......................................................................................21 3.1 Front Panel Buttons .............................................................................21 3.2 Front Panel Controls & Indicators.......................................................22 3.3 Headphone Level .................................................................................23 3.
ADMS 44.22 Installation and Operation Manual INTRODUCTION Thank you for your purchase of a Broadcast Tools® ADMS 44.22 Analog / AES Digital Matrix Switcher (referred to as the ADMS 44.22 throughout this manual). We’re confident that this product will give you many years of dependable service. This manual is intended to give you all the information needed to install and operate the Broadcast Tools® ADMS 44.22.
ADMS 44.22 Installation and Operation Manual Functional Description 1.1 Introduction The ADMS 44.22 is an 8x2 stereo matrix switcher with four stereo analog and four stereo AES inputs, and two independent stereo analog and AES outputs in a 1-RU profile. Each input channel is equipped with an automatic level control circuit and a fully configurable 3-band equalizer. The ADMS 44.22 provides both word clock in and word clock out signals for synchronization to external digital equipment.
ADMS 44.22 Installation and Operation Manual 1.2 DSP Processing 1.2.1 Matrix Switcher The ADMS 44.22 8x2 stereo matrix switcher can connect and disconnect (mute) any input in any combination to one or both outputs. All basic switcher functions can be performed using either the front panel buttons or remote switch or open collector closures. The ADMS 44.22 front panel has one pushbutton for each stereo input channel, and four modifier buttons.
ADMS 44.22 Installation and Operation Manual • Fade Up/Fade Down The ADMS 44.22 can fade one or more channels up or down at a preprogrammed Fade Rate ranging from 0.5 to 10.0 seconds. The Fade Rate is global for all channels. In Interlock and Overlap Modes, fading one channel up initiates an automatic equal-power cross fade by fading down any connected input(s) at the same rate. • Dim Any connected input may be dimmed (gain reduced) by any amount from 0.1 to -20.
ADMS 44.22 Installation and Operation Manual effect is that when program level returns, there are no sudden gain changes made, as would be the case with a standard compressor/limiter. For effective ALC operation set the threshold at the very bottom of the dynamic range of the program level. Setting the threshold too low may cause an increase in the noise floor of the channel during silence gaps.
ADMS 44.22 Installation and Operation Manual 1.3 Synchronization and Clocking The ADMS 44.22 supports internal and external sample clock rates of 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz, and can be synchronized to external digital devices using the Word Clock In and Word Clock Out connectors on the rear panel. 1.4 Interconnect Port Two ADMS 44.22 can be linked together to form a 16x2 stereo matrix switcher by connecting the Interconnect port of two units.
ADMS 44.22 Installation and Operation Manual saved/recalled. 1.6 Serial Communication 1.6.1 Serial RS-232 Control The ADMS 44.22 contains a comprehensive set of RS-232 commands for remotely controlling, querying, and updating the device from any standard RS-232 ASCII terminal or dedicated hardware controller at baud rates of 4800, 9600, 38400, or 57600. There are two RS-232 control modes: Burst Mode, and Menu Mode.
ADMS 44.22 Installation and Operation Manual switcher button, thus making it possible to remotely replicate front panel control operations without the need for complicated wiring or an intermediate device to interpret control inputs. A Monitor Mute input (13), not available from the front panel, mutes the powered monitor output. When the front panel controls are locked from user input out with the serial Front Panel Lock (CL) command, the remote control inputs are also locked out.
ADMS 44.22 Installation and Operation Manual 2 Setup & Installation 2.1 Mounting The ADMS 44.22 is designed to be rack mounted in a standard EIA 19” rack. It should be mounted in an area that is accessible from the rear and away from sources of heat and moisture. We recommend that you bench test and become familiar with the operation of the unit before permanently installing the unit in your facility. 2.2 Euroblock Connectors The ADMS 44.
ADMS 44.22 Installation and Operation Manual 2.4 Powered Monitor Output The ADMS 44.22 provides a balanced line-level stereo output for monitoring Output 1 or Output 2 using powered monitor speakers. The protocol for connecting the Powered Monitor outputs to balanced and unbalanced equipment is identical to that described for the analog outputs in the pre- vious section. Powered Monitor Connector 2.5 AES Digital Inputs & Outputs The ADMS 44.
ADMS 44.22 Installation and Operation Manual 110Ω AES digital cables to connect the ADMS 44.22 to and from your external AES devices. Regular analog microphone cables should never be used. Microphone cable has substantially lower bandwidth than 110Ω AES digital cable and therefore even when used over short distances will severely degrade the quality of the AES signal. 2.6 Word Clock In/Out The ADMS 44.22 Word Clock In and Word Clock Out jacks are 75Ω BNC connectors located on the rear panel.
ADMS 44.22 Installation and Operation Manual 2.8 RS-232 Serial Port The ADMS 44.22 RS-232 port is a RJ11 (6P4C) telco connector located on the rear panel of the unit and is labeled ‘Computer’, as shown in the picture above. The unit is supplied with a Broadcast Tools® S9 RJ-11-to-DB9 modular adapter and a reverse-wired 4-conductor RJ11 telephone cord for connecting your computer or hardware control device’s RS-232 port to the Computer jack on the rear panel.
ADMS 44.22 Installation and Operation Manual 2.9 Controlling Multiple ADMS 44.22 Units 2.9.1 Multi-drop RS-232 Multiple ADMS 44.22 units can be connected to and controlled from a single serial RS-232 port by connecting the serial ports together in parallel with a duplex or multiplex RJ-11 modular telco adapter, such as the Radio Shack 279-357 or 279-433 adapters. An example of the cabling required for a two-unit setup is Multi-Drop RS-232 Cabling shown below.
ADMS 44.22 Installation and Operation Manual own RS-232 serial port, as shown in the diagram below. The advantage of using a USB to RS-232 adapter is that each ADMS 44.22 unit can be set to ID = 0, allowing the terminal application to receive automated responses from each unit and Menu Mode operation. Terminal applications such as VanDykeTM CRT allow the operator to individually setup and control each RS-232 com port from within its own tab so that all ADMS 44.
ADMS 44.22 Installation and Operation Manual ground and must be used as the ground reference for Voc. 2.12 Relays The four relay outputs (labeled K1 through K4) are available through the bottom 18-position removable Euroblock connector on the rear panel, as shown in the picture in the preceding section. Each relay can be individually controlled from the terminal to provide contact closures for external devices. The relay contacts are rated for 1A at 30V (AC or DC), and are linearly derated to 0.3A at 120V.
ADMS 44.22 Installation and Operation Manual Unit ID (SW1 – SW3) The Unit ID is assigned using following table: ID 0 ID 1 OFF OFF ON OFF OFF ON ON ON OFF OFF ON OFF OFF ON ON ON the first three DIP switches according to the ID 3 OFF OFF OFF OFF ON ON ON ON Unit ID 0 1 2 3 4 5 6 7 Unit ID Settings When two or more units are connected to a single serial port using multidrop RS-232, then each unit must be assigned a unique Unit ID.
ADMS 44.22 Installation and Operation Manual Master/Slave Mode (SW9) Sets up the unit to run in Master or Slave Mode. In Master Mode, the unit acts as Single/Dual Unit Operation (SW10) When a unit is set to Master Mode, the Single/Dual Unit switch determines whether the Master receives audio inputs from the Interconnect port. In a Master/Slave setup, this switch must be set to Dual to receive audio from the Slave. When the unit is a stand-alone Master, then this switch must be set to single.
ADMS 44.22 Installation and Operation Manual 3 Front Panel Operation 3.1 Front Panel Buttons All basic switcher functions can be performed from the front panel by pressing one or a combination of the 12-switcher control buttons. The same functions can likewise be performed using the Remote Control inputs associated with each button.
ADMS 44.22 Installation and Operation Manual 3.2 Front Panel Controls & Indicators The ADMS 44.22 front panel LED indicators, shown in the picture below, display of the following operational information: ADMS 44.22 Front Panel Indicators OP 1 Input Connected to Output 1 [Green] Indicates when an in input is connected to Output 1. The switcher connection state is determined by the gain of the connection. When the gain = -INF, the input is Disconnected. If the Gain is ≠ -INF, then the input is connected.
ADMS 44.22 Installation and Operation Manual Off = Program Present AES Error AES Error Indicator [Red] Indicates when an AES cyclical redundancy check (CRC), parity, eye-pattern, or biphase error condition has been detected on any of the AES digital input channels that are connected to Output 1. Errors that are detected on AES inputs that are either disconnected or connected only to Output 2 are ignored.
ADMS 44.22 Installation and Operation Manual 4 RS-232 Operation 4.1 Introduction The ADMS 44.22 command set is based on the Broadcast Tools® ACS 8.2, 8 x 2 Matrix Audio Control Switcher command set. Many ACS 8.2 commands have been preserved in the ADMS 44.22 to allow users to easily integrate the ADMS 44.22 into facilities that currently support ACS 8.2 remote control. ADMS 44.22 commands that are backwards–compatible with the ACS 8.2 command set are indicated by the text “ACS 8.
ADMS 44.22 Installation and Operation Manual 4.3 Set-up Commands MM Enable Menu Mode (ACS 8.2) Enables on interactive text menu for viewing and changing frequently accessed setup parameters. Menu Mode is available only for unit ID=0. See section 3.15 for more details. CL[x] Front Panel Lock (ACS 8.2) Locks out front panel switcher control buttons and rear panel remote control inputs from user control. [x] L = Lock; U = Unlock CE[x] Enable Error Responses (ACS 8.2) Enables error reporting for the unit.
ADMS 44.22 Installation and Operation Manual SSR[x]Set Sample Rate Sets the nominal sample rate of the system. When an external sample clock source is selected, sample rate setting must be set to match the sample rate of the external clock source. A mismatch between the programmed sample rate and the actual sample rate of the external clock will shift EQ band frequency centers and cause errors with all time-based computations, such as the ALC, fade rates, and time delays. [x] 0 = 32 kHz; 1 = 44.
ADMS 44.22 Installation and Operation Manual Unit ID, or carriage return. –R Reset unit Reboots the DSP and reloads the settings specified by the power up DIP switch (User, or Last Saved). Pressing causes unit ID=0 to send the following text response: Download new firmware (D), Reset unit (R), any other key to quit: Press ‘R’ to reset the unit. If a unit with ID=0 is not present, this message will not be displayed. Nonetheless, pressing R after will reset all units with ID≠0.
ADMS 44.22 Installation and Operation Manual after not receiving data for more than one second and go back to waiting for a new Download Firmware operation. At this point however, the program memory has been erased from flash and the unit becomes inoperable except for the ability to download new firmware. Once an XModem transfer fails, the baud rate of the unit reverts to the 9600 baud default for all subsequent serial communications.
ADMS 44.22 Installation and Operation Manual 4.6 Query Commands Poll Poll Units (ACS 8.2) Queries the RS-232 bus to detect which units are connected. In a multi-drop RS-232 setup, units respond with delays proportional to the Unit ID so that no units will have their transmitters enabled at the same time. Units respond by sending their Unit ID back to the terminal.
ADMS 44.22 Installation and Operation Manual sent to the terminal whenever the state of the switcher changes for any inputoutput connection. The switcher connection state is determined by the gain of the connection. When the gain = -INF, the input is Disconnected. If the Gain is ≠ -INF, then the input is Connected. Therefore, when an input is faded down, the SL command will not return a Disconnected state until the fade completes.
ADMS 44.22 Installation and Operation Manual SO Response: S[u]R,[yk1],[yk2],[yk3],[yk4] Display Open Collector Status (ACS 8.2) Returns the current status of open collector outputs OC1 through OC9. [yocn] 0 = Unlatched (High/Off); 1 = Latched (Low/On) Response: S[u]O,[yoc1],[yoc2],[yoc3],[yoc4],[yoc5],[yoc6],[yoc7],[yoc8],[yoc9]< LF> SD Display AES Error Status Returns the contents of the AES error register for digital Inputs 1 through 4.
ADMS 44.22 Installation and Operation Manual Analog Input 4: Pro (+4dBu) 4.7 Equalizer Commands EQB[ic][b][x] Enable Equalizer Band Enables input channel equalizer bands. The EQB command can be applied to a single band on a single input, all bands on a single input, a single band on all inputs, or all bands on all inputs. [x] 0 = Bypassed; 1 = Enabled. EQT[ic][b][x] Set Equalizer Band Type Sets the equalizer type for input channel equalizer bands.
ADMS 44.22 Installation and Operation Manual B2 Bypassed T:Peaking G: 0.0 F: 1000.0 Q: 1.0 B3 Bypassed T:High Shelf G: 0.0 F:20000.0 Q: 1.0 Analog Input 3 B1 Bypassed T:Low Shelf G: 0.0 F: 20.0 Q: 1.0 B2 Bypassed T:Peaking G: 0.0 F: 1000.0 Q: 1.0 B3 Bypassed T:High Shelf G: 0.0 F:20000.0 Q: 1.0 Analog Input 4 B1 Bypassed T:Low Shelf G: 0.0 F: 20.0 Q: 1.0 B2 Bypassed T:Peaking G: 0.0 F: 1000.0 Q: 1.0 B3 Bypassed T:High Shelf G: 0.0 F:20000.0 Q: 1.0 Digital Input 1 B1 Bypassed T:Low Shelf G: 0.0 F: 20.0 Q: 1.
ADMS 44.22 Installation and Operation Manual Sets the target output level for the output channel ALCs. The ALCO0 command can also be applied to either one or both output channel ALCs. The ALC Target Output Level must be ? the ALC Threshold Level; setting the ALC Target Output Level < the ALC Threshold Level sets the ALC Target Output Level = the ALC Threshold Level. [x] Target Output Level Range = 0.0 ? -40.
ADMS 44.22 Installation and Operation Manual Bypassed O:-20.0 T:-50.0 R: 1.5 Digital Input 4 Bypassed O:-20.0 T:-50.0 R: 1.5 Analog/Digital Output 1 Bypassed O:-20.0 T:-50.0 R: 1.5 Analog/Digital Output 2 Bypassed O:-20.0 T:-50.0 R: 1.5 4.9 Preset Management Commands CDEF Load Factory Default Settings (ACS 8.2) Loads the factory default settings for the unit. The factory defaults for each ADMS 44.
ADMS 44.22 Installation and Operation Manual is in GPO Mode. PLF Load Factory Default Settings Loads the factory default settings for the unit. Identical to the CDEF command. PSU Save User Preset Stores the current unit parameter settings into user preset memory. All parameters listed in the factory default settings table are stored into the user preset. PLU Load User Preset Loads the user preset from memory.
ADMS 44.22 Installation and Operation Manual Connects a single input to Output 2 only. 4.11 Audio Switcher: Modal Connect Commands Modal connect commands connect inputs to outputs within the rules for Mix, Interlock, and Overlap Modes as though the same action were performed from the front panel. For example, issuing a modal connect command connects the selected input to the selected output, and mutes all other inputs connected to the same output. [ii][o] Connect Input To Output (ACS 8.
ADMS 44.22 Installation and Operation Manual only in Overlap Mode; sending the command in Mix or Interlock Modes returns an EEE. 4.12 Audio Switcher: Mute Commands Mute commands are non-modal. Muting an input affects only the selected channel, regardless of the Switcher Mode. MUTE[ic][oc]Mute Input in Output Mutes a single input in a single output. The MUTE command can also mute a single input in both outputs, all inputs in a single output, or all inputs in both outputs.
ADMS 44.22 Installation and Operation Manual outputs. [x] 0 = Un-dim (reset gain to unity); 1 = Dim DML[ic][x] Set Dim Level Sets the dim level for one or all input channels. The dim level for an input is used for dimming the input in both outputs 1 and 2. [x] Dim Range = 0.0 ? -20.0 (dB) DIMD Display Dim Settings Returns the dim settings for all input channels in a text-readable format: Analog Input 1:-10.0 Analog Input 2:-10.0 Analog Input 3:-10.0 Analog Input 4:-10.0 Digital Input 1:-10.
ADMS 44.22 Installation and Operation Manual 4.15 Menu Mode Menu Mode is an interactive text entry mode that allows the user to view and change many of the most commonly accessed settings without having to refer to the RS-232 command set documentation. MM Enable Menu Mode (ACS 8.2) Enters Menu Mode. Entering Menu Mode causes the main menu to be displayed. 1 - Sample Rate 48000.
ADMS 44.22 Installation and Operation Manual Specifications Nominal Input Level +4 dBu or –10dBV (selectable) Maximum Input Level +23.5 dBu ± 0.1dB @ +4 dBu Analog Operating Level +9.3 dBV ± 0.1dB @ -10dBV Analog Operating Level Analog Input Impedance > 22 k ohm, balanced, dc-coupled Maximum Output Level + 23.5 dBu ± 0.1dB = 0dBFS Analog Output Impedance > 100 ohm, balanced, ac-coupled Frequency Response, A/D-DA: -/+0.25db, 20 Hz to 20 kHz @ 44.1 & 48 kHz Sample Rates -/+0.
ADMS 44.22 Installation and Operation Manual LIMITED WARRANTY The term “Buyer” as used in this document refers to and includes both (but only) (a) any person or entity who acquires such an item for the purpose of resale to others (i.e., a dealer or distributor of an item), and (b) the first person or entity who acquires such an item for such person’s or entity’s own use.
ADMS 44.22 Installation and Operation Manual ADMS 44.22 Analog / AES Digital Matrix Switcher CAUTION! Functional Diagram STEREO LT +– ANALOG INPUT 1 RT +– A signal flow diagram of the ADMS 44.22 (configured as a Master)Broadcast is shown below: Tools products, as any electronic device, can fail -10 Output 1 ...
