® Acuity LT Wireless System Installation Guide Software Version 6.X compatible with: Propaq CS Software Versions 3.42.01 or higher Propaq LTR Software Versions 1.X or higher Micropaq Software Versions 1.
ii Welch Allyn Propaq LT Vital Signs Monitor Copyright 2007 Welch Allyn. All rights are reserved. No one is permitted to reproduce or duplicate, in any form, this manual or any part thereof without permission from Welch Allyn. Welch Allyn assumes no responsibility for any injury to anyone, or for any illegal or improper use of the product, that may result from failure to use this product in accordance with the instructions, cautions, warnings, or statement of intended use published in this manual.
iii Contents 1 - Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 About this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Safety and Compliance Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 - Planning the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Understanding the Acuity LT Wireless System . . . . . . . . . .
iv Contents Welch Allyn Acuity LT Wireless System
1 1 Introduction About this Manual This Acuity LT Wireless Installation Guide provides information needed to plan and perform the installation of your Acuity LT Wireless System. This information describes how to: • Plan the installation • Install the wiring • Install the system • Troubleshoot the system In order to make sure your equipment is installed properly, be sure to read and follow all of the planning and installation steps provided in this manual.
2 Chapter 1 Introduction Welch Allyn Acuity LT Wireless System Safety and Compliance Information The CE Mark and Notified Body Registration Number signify the Acuity System meets all essential requirements of European Medical Device Directive 93/42/EEC. Table 1.
3 2 Planning the Installation Understanding the Acuity LT Wireless System The Acuity LT wireless system displays the vital signs from patient monitoring devices on the Acuity LT Central Station. Network components included with the system enable connections to wireless patient monitoring devices and a laser printer. The system also stores patient data through the Full Disclosure feature. This feature automatically stores all trend information for all patients for up to 24 hours.
4 Chapter 2 Planning the Installation Welch Allyn Acuity LT Wireless System Acuity LT Wireless System Components The Acuity LT wireless system links Micropaq, Propaq LTR, and Propaq CS wireless portable patient monitors to the Acuity Central Station. The Acuity Central Station consists of a Sun Microsystems Workstation CPU and display. The CPU operates with Welch Allyn’s Acuity LT wireless system software. Patient data, alarms and equipment alerts are presented on the display.
Installation Guide Chapter 2 Planning the Installation 5 Plan the Location of Equipment The following illustration shows some typical locations for installation of the Acuity LT wireless system components. Sandra “D” (SD) type antenna is mounted on the ceiling for best reception. Whip type antenna is mounted on AP. Power-Over-Ethernet (PoE) device separates out dc power from the data cable and routes data and power to the AP.
6 Chapter 2 Planning the Installation Welch Allyn Acuity LT Wireless System Plan the Location of Your Access Points It is extremely important to carefully select the locations where you install the Access Points (APs) so that they can provide the best radio reception and network coverage for your facility. Radio reception depends on two factors: 1. Distance between the AP and wireless patient monitor. 2. Amount and type of obstructions between the AP and wireless patient monitor.
Installation Guide Chapter 2 Planning the Installation 7 Installation Plan Examples The following examples show some typical Acuity LT system layouts. These examples are for illustration only, and are not a guarantee of actual coverage. The actual network coverage in each facility depends on the amount and type of obstructions, including the type of wall, floor, and ceiling construction and materials, number of walls between the monitor and AP, and type of equipment and supplies in the area.
8 Chapter 2 Planning the Installation Welch Allyn Acuity LT Wireless System checklist includes confirmation of adequate wireless communication throughout all areas of your facility, and confirms that your APs are properly located and operating. Example 1 - L-Shape Floor Plan AP locations are chosen to allow as much overlap as possible between AP areas while still covering the desired area in the facility.
Installation Guide Chapter 2 Planning the Installation Example 2 - Single-Corridor Floor Plan AP Access Point 1 Acuity LT Central Station Equipment closet Access Point 2 10 feet AP 9
10 Chapter 2 Planning the Installation Welch Allyn Acuity LT Wireless System Example 3 - Double-Corridor Floor Plan Access Point 1 AP Equipment closet Acuity LT Central Station Access Point 2 AP 10 feet
Installation Guide Chapter 2 Planning the Installation 11 Installation Worksheet for Your Facility Use this worksheet to identify the locations for the equipment and APs for your facility. Be sure to consider: • All of the factors about obstructions and network coverage (“Common Obstructions” on page 6). • 60 feet is the approximate maximum distance between AP and monitor for effective network coverage assuming standard construction.
12 Chapter 2 Planning the Installation Welch Allyn Acuity LT Wireless System
13 3 Installing the Wiring Install Wiring for all Equipment After you have planned your installation and decided where your Acuity LT equipment will be located, you can have qualified personnel install the wiring for the Acuity LT Wireless System equipment in the appropriate locations. All wiring must be installed in compliance with local and state safety guidelines and the following specifications: Table 3.
14 Chapter 3 Installing the Wiring Welch Allyn Acuity LT Wireless System Table 4.
15 4 Installing the System Step 1 - Unpack 1. Carefully unpack the Acuity LT system. 2. Locate and identify all the components. Standard components as well as the optional printer and uninterruptible power supplies are shown in the illustration and listed in Table 6 on page 16.
16 Chapter 4 Installing the System Welch Allyn Acuity LT Wireless System Table 6.
Installation Guide Chapter 4 Installing the System 17 Table 6. Equipment List for Acuity LT Wireless System (continued) Equipment Item G 2 Uninterruptible Power Supplies (Third UPS required for systems with 4- G1 7 APs) Modem Description Uninterruptible Power Source (UPS) to provide emergency power to system components (model may vary) For 28-patient system, the addition of the second Display requires the 750 VA UPS.
18 Chapter 4 Installing the System Welch Allyn Acuity LT Wireless System DISPLAY (Remove rear cover, connect to Input 1) UPS 2 Do not plug UPS 2 into ac power until Step 3. PRINTER (model may vary) CPU Do not plug the printer into a UPS. Plug it directly into an ac outlet. Do not plug UPS 1 into ac power until Step 3. For systems with more than 2 APs add as appropriate: • Additional APs • PoEs, power adapters, cords and cables.
Installation Guide Chapter 4 Installing the System 19 3. After you have connected all equipment, apply power in this order: Printer Plug into ac power. Do not plug the printer into a UPS. Turn on the printer power switch (power switch may be in the rear; see printer manual for location). UPS 1 Plug the UPS 1 power cord into an ac outlet. Turn UPS 1 power switches on to apply power to the Switch, PoEs, and APs (check UPS manual for switch locations).
20 Chapter 4 Installing the System Welch Allyn Acuity LT Wireless System If Acuity displays a CHECK NETWORK message, check all of the power and data cable connections to the CPU, Switch, APs, and PoEs. If the message is still displayed, refer to “Troubleshooting & Support” on page 37. For a 28-patient system, confirm that the “map” in the lower left corner displays icons for 28 monitors. 7.
Installation Guide Chapter 4 Installing the System 21 11. Set the monitor to the alternate internal simulation mode to cause an alarm: Micropaq: • Press Scroll Down as needed to highlight TOGGLE DEMO MODE, then press Select (this selects DEMO 2 Mode, thereby causing an alarm condition). Propaq LTR: • Highlight SpO2 and press . • Highlight Setup and press • Highlight Timings, then scroll to highlight Demo Mode.
22 Chapter 4 Installing the System Welch Allyn Acuity LT Wireless System 15. Use the Acuity mouse/trackball left-button to click in the waveform area of the waveform window, then confirm that within 2 minutes the printer prints the simulated patient data from the monitor. Click • If the printer does not print, make sure it is on-line and properly connected. 16. Unplug both UPS units from AC power (this may cause the UPS units to emit an audible alarm).
Installation Guide Chapter 4 Installing the System 23 Step 3 - Set Up and Connect the Equipment 1. Place all of the equipment in the locations you previously identified during the planning process. Access Points • Temporarily hang APs in the hallway in the intended location. Do not permanently mount the AP mounting brackets or SD antennas. You will permanently install them after you have tested the network coverage in the Final System Check.
Chapter 4 Installing the System Welch Allyn Acuity LT Wireless System UPS 2 Do not plug UPS 2 into ac power until Final System Check PRINTER (model may vary) Headphone jack MODEM CPU Do not plug the printer into a UPS. Plug it directly into an ac outlet. Install at Nurses Station DISPLAY (Remove rear cover, connect to Input 1) Do not plug UPS 1 into ac power until Final System Check For systems with 4-7 APs, add as appropriate: • UPS • PoEs, power adapters, cords and cables.
Chapter 4 Installing the System PRINTER (model may vary) Headphone jack MODEM CPU To analog phone line Do not plug UPS 1 into ac power until Final System Check SWITCH Port 1 - AP1 Port 2 - AP2 Ports 3-7 (AP3-AP7) Port 8 - CPU UPS 1 (500 VA) PoE POWER SUPPLY For systems with 47 APs, add as appropriate: • UPS (500 VA) • PoEs, power adapters, cords and cables. PoE POWER SUPPLY PoE PoE PoE PoE SD ANTENNA AP2 Do not plug the printer into a UPS. Plug it directly into an ac outlet.
26 Chapter 4 Installing the System Welch Allyn Acuity LT Wireless System Step 4 - Check Final System Operation Perform all of the steps in this table to make sure the Acuity LT wireless system is operating properly. This system check may require 2-3 hours to complete, depending on your facility. You will need: Micropaq, Propaq LTR, or Wireless Propaq CS patient monitor If any part of the system is not working, refer to “Troubleshooting & Support” on page 37. Table 7.
Installation Guide Chapter 4 Installing the System Table 7. Final System Check for Acuity LT Wireless System (continued) Step 4a Activity to Perform For 28-patient systems only: Confirm that Acuity LT presents information on both the left and right displays with the top row information similar to the screen shown in Step 4. Pass/Fail (Circle One) Pass/Fail Confirm that the “map” in the lower left corner of the Step 4 screen shows 28 icons (not 12). Confirm that the “map” is on the left side display.
28 Chapter 4 Installing the System Welch Allyn Acuity LT Wireless System Table 7. Final System Check for Acuity LT Wireless System (continued) Step 7 Activity to Perform Click the left mouse/trackball button on the status icon Pass/Fail (Circle One) Pass/Fail and confirm that the ID Not Confirmed window is displayed.
Installation Guide Chapter 4 Installing the System 29 Table 7. Final System Check for Acuity LT Wireless System (continued) Step 11 Activity to Perform Place the monitor within 10 feet of AP1. Pass/Fail (Circle One) Comments Pass/Fail At the Switch, disconnect the data cables to all APs EXCEPT for AP1; leave AP1 connected to the Switch (Switch Port 1). Also leave the data cable for the CPU connected to the Switch (Switch Port 8).
30 Chapter 4 Installing the System Welch Allyn Acuity LT Wireless System Measure RSSI for Your Facility This procedure checks the effectiveness of the network coverage for the Acuity LT Wireless System as it is currently installed in your facility. The network radio signal strength for a monitor is measured with a parameter called Received Signal Strength Indication (RSSI). The RSSI is displayed on the monitor’s Network Status service screen.
Installation Guide Chapter 4 Installing the System • From the main display, highlight SpO2 and press • Highlight Setup and press • Highlight Service and press • Highlight Radio, then highlight Show Info and press 31 . to access the Setup menu. to access the Service menu. . The monitor displays the Net name (which must match the Network Name on the CPU left side panel label) and the RSSI value.
32 Chapter 4 Installing the System Welch Allyn Acuity LT Wireless System When testing, be sure to place the APs close enough together to allow overlapping coverage and prevent gaps in network coverage. The APs should at least 6 feet apart, but no more than 40 feet apart. 9. Record the results of the RSSI testing on the Final System Check. The Final System Check is complete. RSSI Measurement Chart Room Number/ Location RSSI Room Bathrm 60 ft. 10 ft.
Installation Guide Chapter 4 Installing the System Example of Completed RSSI Measurement Chart Here is an example of a completed RSSI Measurement Chart (“Example 2 - SingleCorridor Floor Plan” on page 9). Room Number/ Location Stairway Hall N. 121 119 117 122 120 118 E1 E2 E3 E4 115 113 111 116 114 112 Hall S.
34 Chapter 4 Installing the System Welch Allyn Acuity LT Wireless System Perform Final Installation of APs If the RSSI testing was satisfactory for your facility, have qualified personnel complete the final installation of the APs. The APs are typically mounted either on the wall, on the ceiling, or just above the ceiling (for suspended ceilings). Note Locate APs and AP antennas at least 2 feet away from any space where people frequent.
Installation Guide Chapter 4 Installing the System 35 Rotate the bracket clockwise to mount onto the rail. • For mounting above suspended ceiling tiles, push back the tiles, locate a suitable place, and mount the AP. 2. Insert the AP into the mounting bracket with the keyhole slots aligned at the back, then slide the AP into place. Make sure the AP is securely attached. 3. Mount the SD antenna horizontally on the ceiling.
36 Chapter 4 Installing the System Welch Allyn Acuity LT Wireless System What to do if RSSI is Greater than 50 If you repositioned the APs and AP antennas but you still had areas in your facility where the RSSI is too high, your facility may have extra obstructions that will require additional APs for your Acuity LT Wireless System (up to a maximum total of 7 APs).
37 5 Troubleshooting & Support Troubleshooting If your Acuity LT wireless system does not work properly, use this table as a guide to help identify and solve problems . Table 8. Acuity LT Wireless System Troubleshooting Symptom Possible Cause and Suggested Response CHECK NETWORK message at Acuity Acuity LT did not get the expected response from 1 or more APs.
38 Chapter 5 Troubleshooting & Support Welch Allyn Acuity LT Wireless System Technical Support For technical assistance, contact Welch Allyn Technical Support. See page ii for contact information.
39 A Specifications Table 9. Acuity LT Wireless System Network Specifications Characteristic Specification Network Type 2.4 GHz Wireless Local Area Network (WLAN) and 10/100 Base-T Ethernet network Radio Frequency Refer to Wireless Monitor Directions For Use Modulation Frequency Hopping Spread Spectrum (FHSS) IEEE 802.
40 Appendix A Specifications Welch Allyn Acuity LT Wireless System The following table lists all of the Acuity LT Wireless System components. All components have been validated and approved for use within the Acuity LT Wireless System. Except for the Printer and UPS, all other replacement devices must be ordered from Welch Allyn to make sure they meet system performance requirements and are properly configured as required. Table 10.
Installation Guide Appendix A Specifications Table 11. Wireless Monitors for Acuity LT Wireless System Monitor Description • • • • 5 lead ECG and optional motion-tolerant SpO2 Heart rate, SpO2 numerics, pulse bar Communicates data through APs to Acuity system Operates stand-alone with continuous monitoring and alarms when outside range of APs • Auto-reconnects when returned within range of APs • Adult and pediatric mode Size: Weight: Power: 7.3 in. x 3.5 x 1.5 (18.5 cm x 8.9 x 3.7) 17.3 oz. (0.
42 Appendix A Specifications Welch Allyn Acuity LT Wireless System
43 B Monitor Network Name (ESSID) In order for a wireless monitor to connect to the Acuity LT Wireless System network, the monitor must be set to the correct Network Name (ESSID) for the system. The system Network Name is shown on a label on the left side panel of the CPU. This section describes how to check and change the Network Name for each of the wireless monitors that can be connected to the network. Micropaq Network Name (ESSID) Check the Micropaq Network Name 1.
44 Appendix B Monitor Network Name (ESSID) 1. Welch Allyn Acuity LT Wireless System Press Scroll Down repeatedly until SERVICE MENU is highlighted. 2. Press Select to display the Service Menu screen. 3. Press and hold down Scroll Down and Scroll Up, then press Select to display the Network Name Menu. The Micropaq will display the following screen: 4. Press Scroll Down to highlight YES, and press Select to display the following screen: The Micropaq displays one of the following pre-set names: com.
Installation Guide Appendix B Monitor Network Name (ESSID) 45 Propaq LTR Network Name (ESSID) Check the Propaq LTR Network Name 1. From the main display, highlight SpO2 and press 2. Highlight Setup and press 3. Highlight Service and press . to access the Setup menu. to access the Service menu. 4. Highlight Radio, then highlight Show Info and press . The monitor displays the current Net name.
46 Appendix B Monitor Network Name (ESSID) Welch Allyn Acuity LT Wireless System Wireless Propaq CS Network Name (ESSID) Check the Wireless Propaq CS Network Name 1. From the Main Menu press SETUP, MORE, MORE, SERVICE, YES, MORE, MORE, RADIO STATUS. NETWORK STATUS BATTERY: 9.2 VOLTS Network Name FIRMWARE VER: V4.57 991001 S24 COUNTRY: INTERNATIONAL MODE 0 NET NAME: com8.protocol MONITOR MAC: 12:34:56:78:90:12 MONITOR IP: 192.168.210.201:7711 AP MAC: 12:34:56:78:90:12 ACUITY IP: 192.168.210.
Installation Guide Appendix B Monitor Network Name (ESSID) 47 The monitor displays a confirmation screen asking you to confirm that you want to change the network name. • If you press YES, the monitor automatically turns itself off, then turns on and seeks to connect to the Acuity LT system with the new network name. • If you press NO, the monitor displays the Change Net Name screen again.
48 Appendix B Monitor Network Name (ESSID) Welch Allyn Acuity LT Wireless System
49 C Installing Additional APs If the Final System Check (described on “Step 4 - Check Final System Operation” on page 26) indicates that there are areas of your facility where the network coverage is not adequate (RSSI is 50 or above), you may want to consider installing additional Access Points (APs). You can install up to a maximum total of seven APs.
50 Appendix C Installing Additional APs Welch Allyn Acuity LT Wireless System You need an additional UPS for the PoE power supplies if your system has four or more APs. 4. Confirm that within 2-3 minutes of receiving power the green Link LED (3rd LED from left on the front of the AP) is continuously on. 5. Measure RSSI throughout your facility to check the network coverage. (See “Measure RSSI for Your Facility” on page 30.) 6.
