Welch Allyn Acuity Installation Guide

Acuity® LT Wireless Central Monitoring System

Installation Guide

Acuity LT System software version 7.0x

ii Welch Allyn Wireless Acuity LT Central Monitoring System

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.

Welch Allyn, Propaq, Micropaq, Acuity, FlexNet, and Flexible Monitoring are registered trademarks of Welch Allyn. Link To Acuity is a trademark of Welch Allyn.

Software in this product is Copyright 2007 Welch Allyn or its vendors. All rights are reserved. The software is protected by United States of America copyright laws and international treaty provisions applicable worldwide. Under such laws, the licensee is entitled to use the copy of the software incorporated with this instrument as intended in the operation of the product in which it is embedded.

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Contents

1 - Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 - Plan the installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

iii

About this manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Conventions used in this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Safety and compliance information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Related documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

System overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Wireless Acuity LT System components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Plan equipment location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Carefully plan the location of access points . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Installation plan examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Installation worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3 - Install Acuity LT System wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Install wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4 - Install the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Unpack and identify Acuity LT System components. . . . . . . . . . . . . . . . . . . . . . 17

Perform a preliminary system operation check. . . . . . . . . . . . . . . . . . . . . . . . . . 20

Install the Acuity LT System equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Perform a final system operation check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Final system components check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Received signal strength indication (RSSI) check. . . . . . . . . . . . . . . . . . . . . 36

Perform final installation of APs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5 - Troubleshooting and support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

A - Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

B - Check or change a patient monitor network name (ESSID) . . . . . 53

Micropaq monitor network name (ESSID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Propaq LTR monitor network name (ESSID). . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Wireless Propaq CS monitor network name (ESSID) . . . . . . . . . . . . . . . . . . . . . 56

iv Contents Welch Allyn Wireless Acuity LT Central Monitoring System

C - Install additional APs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

To order additional APs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Introduction

About this manual

This guide provides information for planning and performing the installation of your wireless Acuity LT 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 steps provided in this manual.

For information about how to operate the wireless Acuity LT System, refer to the Acuity LT and Mobile Acuity LT Central Monitoring Systems Directions For Use (810-2401-XX).

Conventions used in this manual

WARNING Indicates conditions or practices that could lead to illness, injury, or death.

Note

Caution In this manual, indicates conditions or practices that could damage the

equipment or other property.

Provides additional important information.

2 Chapter 1 Introduction Welch Allyn Wireless Acuity LT Central Monitoring System

Safety and compliance information

The CE Mark and Notified Body Registration Number signify the product meets all essential requirements of European Medical Device Directive 93/ 42/EEC.

Table 1. Acuity LT System compliance with safety standards

Acuity LT System component(s) Product category Organization and

Propaq CS, Propaq LTR and Micropaq monitors

All components operating together as a system

All information systems components Information Technology Equipment EN 60 950:1994

Wireless Acuity LT Central Monitoring System System cordless receiver cabinet

a. When the equipment is operated in a commercial environment, Class A limits provide reasonable protection against harmful

interference. The equipment generates, uses and can radiate radio frequency energy; if it is not used in accordance with this reference guide, or if it is modified from original installation, it might cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user is required to correct the interference at his own expense.

Medical Equipment IEEE 802.11, Industrial

Electromagnetic compatibility for Medical Equipment

Medical Systems IEC 60 601-1-1:2001

Electromagnetic compatibility FCC Class A

standard

Scientific Medical (ISM) band, 2.4 GHz; two-way communications

IEC 60 601-1-2:2001

WARNING The wireless Acuity LT System must be installed by technical personnel qualified by training and experience in compliance with the safety standards listed above, in compliance with local and state regulations, and according to the instructions provided in this guide. Improper installation could result in improper operation of the wireless Acuity LT System, prevent patient monitoring at the Central Station, and cause equipment damage or failure.

WARNING After making any changes to Acuity LT System hardware or software, make sure that system performance is validated by qualified personnel according to instructions in this guide.

WARNING Although the printer is optional with the Acuity LT System, be aware that there is no physical record available for Acuity LT System events (such as alarms) without a printed paper copy.

Installation Guide Chapter 1 Introduction 3

Plan the installation

System overview

Mobile device running Clinician Notifier software within the hospital network

Access point

WACS

Switch

Wireless Propaq and Micropaq monitors communicate through access points

Modem

Laser Printer

Wireless Acuity LT Central Station Monitoring System

The Acuity LT Central Station receives, displays and analyzes information from various wireless monitoring devices. The Acuity LT System CPU operates with Welch Allyn Acuity LT System software. Patient data, alarms and equipment alerts are presented on the display.

Network components included with the system enable connections to wireless patient monitors and a laser printer. An external modem facilitates remote technical support.

The Welch Allyn Connectivity Server (WACS) is an option to the Wireless Acuity LT Central Monitoring System. WACS consists of a server platform on which Welch Allyn software options are installed. Link To Acuity System patient information to mobile devices running Welch Allyn Clinician Notifier software. A hospital network can carry information to the Acuity System and carry patient data to the hospital information system (HIS/CIS).

The system stores patient data and trend information for up to 96 hours, through the Full Disclosure feature. The system can be expanded to support up to 28 patients: this type of system includes a larger terminal server, a second display, and a trackball.

Acuity LT Central Station

is a WACS option that delivers Acuity

Uninterruptible Power Supplies (UPSs)

6 Chapter 2 Plan the installation Welch Allyn Wireless Acuity LT Central Monitoring System

Wireless Acuity LT System components

Patient monitors

The Acuity LT System links Micropaq, Propaq LTR, and Propaq CS wireless portable patient monitors to the Acuity LT Central Station.

The 12-patient Acuity LT System capability can be expanded to support up to 28 patient monitors. This system includes a second display with trackball, and a standard quantity of four APs (expandable to a total of seven APs).

Acuity LT Central Station

The Acuity LT Central Station consists of a Sun Microsystems workstation CPU and display. The CPU operates with Welch Allyn’s Acuity LT System software. Patient data, alarms and equipment alerts are presented on the display.

Network

The wireless patient monitors communicate through an internal radio card to a wireless local area network (WLAN) using international standard IEEE 802.11. This product operates within the 2.4GHz RF spectrum (super high frequency). It uses frequency hopping spread spectrum (FHSS) technology to establish bi-directional data linkage to an access point (AP). The APs provide the conversion from wireless to wired communication through connection to an ethernet switch using international standard IEEE 802.3. The switch connects to the CPU using standard Ethernet 10 Base-T.

As each wireless patient monitor is moved throughout the facility, network communication automatically transitions between APs without disruption of service, provided that the APs are properly located in the facility.

Network configuration

The CPU, APs, and monitors are configured with an 802.11 Extended Service Set ID (ESSID) or network name unique to the Acuity LT System (such as “com8.protocol”). The network name for the CPU and APs must be configured at the factory. The network name for each wireless monitor can be set locally. If a facility has more than one Acuity LT System, the CPU, AP, and wireless monitors must be configured at the factory with a different network name to prevent interference between networks.

In addition to the network name, each AP is uniquely configured with a number to distinguish it from other APs in the network. Each AP is uniquely labeled and must be factory-configured.

Antennas

Each AP has two antennas, the Sandra “D” (SD) type and the whip type antenna. For best reception, the SD is typically mounted on the ceiling in a horizontal orientation, and the whip type is mounted vertically on the AP.

Modem

An external modem is connected to the CPU and a dedicated analog phone line. Modems can vary according to the telecommunication requirements in different countries. The modem allows remote technical support if required.

Installation Guide Chapter 2 Plan the installation 7

Plan equipment location

The following illustration shows typical locations for installation of wireless Acuity LT System components.

Sandra “D” (SD) type antenna is mounted on the ceiling for best reception. Whip-type antenna is mounted on the AP.

Power-over-ethernet (PoE) device separates out DC power from the data cable and

routes data and power to the AP.

Access points (APs) are mounted in hallways, seven inches from the

ceiling or above the ceiling.

Data cables are routed from the switch to the

APs and CPU, typically up through the wall and

overhead through ceiling access.

Typical network

termination for

data cables.

Display(s) and CPU are on a desk at the nurses station.

Printer is located near the CPU.

UPS provides temporary power to

components at the nurses station.

Modem connects to the CPU and to a dedicated analog phone line to allow remote access for technical support.

Switch and network components are typically located in an equipment closet.

UPS provides temporary power to the switch

and network components.

Power-over-ethernet (PoE) devices

merge DC power for the AP into the

data cable, for ease in wiring.

8 Chapter 2 Plan the installation Welch Allyn Wireless Acuity LT Central Monitoring System

Carefully plan the location of access points

It is critical to select access point locations so that they can provide the best radio reception and network coverage for your facility. When APs are properly located, the Acuity LT System automatically provides seamless network coverage as patient monitors move throughout a facility.

Distance

Generally, the Acuity LT System APs and wireless monitors can effectively communicate up to a distance of about 60 feet within a medical facility that has typical construction (such as wallboard wall and metal studs) and average obstructions.

• Locate APs between 6 feet and 40 feet from each other.

If APs are closer than six feet, one AP can overload the input of the other, even though the APs are operating at different frequencies.

If APs are farther apart than 40 feet, there can be gaps in network coverage as wireless patient monitors are moved throughout the facility.

• If the standard number of APs provided with the wireless Acuity LT System does not provide adequate network coverage for your facility, it is possible to add more APs to your system (up to a maximum total of seven). See “Install additional APs” on page 59.

WARNING Do not install an access point or access point antenna closer than two feet from any location where people frequent. Installation closer than two feet could result in exposure to levels of radio frequency energy that are higher than recommended by the Federal Communications Commission (FCC). Installation above a nurses station is not acceptable.

Installation Guide Chapter 2 Plan the installation 9

Obstructions

APs and wireless monitors generally communicate best in a “line-of-sight”, with minimum obstructions between the APs and the monitors. Radio signals lose strength when they pass through obstructions.

While the APs and wireless monitors can overcome some amount of obstruction, too much results in intermittent or total disconnection.

Table 2. Common obstructions to radio reception

Type of obstruction Description

Minor obstructions Radio signals can generally penetrate these types of obstructions without

Typical partition walls (sheetrock/ wallboard, with metal studs) and nonmetal doors

Curtains, mattresses, linens, suspended ceiling tiles and plain glass windows

Major obstructions that should be avoided

Any large amount of metal Large metal equipment, metal lockers or metal cabinets.

Load-bearing walls, stairwells, fire walls, metal-clad fire doors, elevators and elevator foyers, wire-mesh windows

Shielded rooms, such as Radiology The shielding typically prevents any transmission of radio signals.

Large concentrations of water, such as a storage closet with large amounts of saline solution

Sources of radiation such as x-ray machines, microwave ovens or other wireless network antennas

a severe loss of signal strength.

APs and wireless monitors can generally communicate through at least two partition walls. Typically the metal studs are placed far enough apart to allow sufficient radio signals to pass through.

No serious problem.

These obstructions can completely prevent effective communication.

These are generally constructed with a lot of metal and metal reinforcements. They also extend above partition walls and suspended ceilings to the structural floor above, which increases the obstruction.

Water and other liquids severely obstruct radio signals.

To reduce interference, keep Acuity LT AP antennas at least 7 feet away from other network antennas or other sources of radiation.

10 Chapter 2 Plan the installation Welch Allyn Wireless Acuity LT Central Monitoring System

Installation plan examples

The following examples show some typical Acuity LT System layouts. These examples are for illustration only; they are not a guarantee of actual coverage. The network coverage in each facility depends on the amount and type of obstructions.

Note that although the examples show the switch, PoEs, and a UPS located in a nearby equipment closet, the equipment closet is optional. This equipment can be located in either of the following places:

• Near the Acuity LT Central Station at the nurses station if there is adequate space.

• As far as 300 feet away from the Acuity LT Central Station. 300 feet is the maximum length of wiring allowed between the switch and the CPU.

Figure 1. L-shape floor plan

10 feet

Allow as much overlap as possible between AP areas while still covering the desired area in the facility.

Access point 1

Acuity LT Central Station

Equipment closet

Access point 2

Effective network coverage is limited to approximately 60 feet, depending on the number of walls and other obstructions.

Confirm coverage in your facility by testing.

Installation Guide Chapter 2 Plan the installation 11

Figure 2. Single-corridor floor plan

Access point 1

Acuity LT Central Station

Equipment closet

Access point 2

10 feet

12 Chapter 2 Plan the installation Welch Allyn Wireless Acuity LT Central Monitoring System

Figure 3. Double-corridor floor plan

Access point 1

Equipment closet

Acuity LT Central Station

Access point 2

10 feet

Installation Guide Chapter 2 Plan the installation 13

Installation worksheet

Use this worksheet to identify locations for Acuity LT System equipment and APs for your facility. Be sure to consider the following:

• All of the factors regarding obstructions and network coverage (“Carefully plan

the location of access points” on page 8).

• 60 feet is the approximate maximum distance between an AP and patient

monitor for effective network coverage assuming standard construction. Actual network coverage varies according to each facility and must be tested on site.

• Two APs must be located between 6 feet and 40 feet from each other. For

systems with more APs, each AP must be within 40 feet of another AP.

• 300 feet is the maximum length of wiring between the switch and the CPU.

• 300 feet is the maximum length of wiring between the switch and the AP.

60 ft.

Approximate maximum distance between AP and patient monitor

10 ft.

14 Chapter 2 Plan the installation Welch Allyn Wireless Acuity LT Central Monitoring System

Install Acuity LT System wiring

After the installation is planned, qualified personnel can install the wiring for the wireless Acuity LT System.

Power requirements

The following power requirements are required at the nurses station and the equipment closet (or wherever the terminal server and UPS are located).

Table 3. Power requirements for wireless Acuity LT System equipment

Location Equipment Required AC power outlets/minimum

Central nurses station • Each display (2 displays for 28-patient

Equipment closet (near nurses station)

power

1 power cord plugs into UPS

system)

•CPU

• External modem

• Uninterruptible power supply (UPS) 1 outlet/500 VA

• Printer 1 outlet (does not plug into UPS)/see printer

• Switch 1 power cord plugs into UPS

• Power-over-ethernet (PoE) devices (supply power to access points)

• Uninterruptible Power Supply (UPS) 1 outlet/500 VA

• Second uninterruptible power supply (UPS) required with 4 to 7 APs, to accommodate additional PoE power adapters

(750 VA required for larger capacity UPS for 28-patient system)

manufacturer’s specifications

1 power cord for each PoE power adapter plugs into UPS (1 PoE power adapter for each AP)

1 outlet/500 VA

Hallways • Access points Power is provided from power-over-ethernet

devices, through the data cables.

16 Chapter 3 Install Acuity LT System wiring Welch Allyn Wireless Acuity LT Central Monitoring System

Install wiring

Caution All wiring must be installed in compliance with local and state safety guidelines and the following instructions and specifications.

To install local are network (LAN) ethernet cable

LAN ethernet cabling is intended for high-speed communications between the CPU, the switch and the access points.

1. Install unshielded twisted-pair (4 pair) cabling (Category 5 or 5E) between the CPU, the switch and the access points.

Maximum cable distance between the CPU and the switch: 300 feet.

Maximum cable distance between the switch and each AP: 300 feet.

Minimum installation distance between APs: 6 feet. Maximum: 40 feet.

Minimum installation distance between AP/AP antennas: 2 feet.

2. Leave at least 15 feet of extra cable at the location where each AP is to be installed.

This allows you to adjust AP locations during network testing to enable you to identify the best AP locations for communication with the monitors.

Do not install the AP mounting brackets. They will be installed later when the APs are permanently installed.

3. Install a network terminal for the CPU.

To aid in troubleshooting, label network terminal ports for data cables that will be plugged into the switch from the CPU and the APs.

4. Terminate the cabling per TIA/EIA-568 standards.

To install telephone/data cabling

Telephone/data cabling is intended for serial communication between the CPU and the Welch Allyn Technical Support department, via an external modem.

1. Install dedicated, analog, stand-alone direct inward dial (DID) telephone line.

The line must not be controlled by the local PBX or switchboard or routed through the telephone switchboard.

2. Terminate cabling with a standard telephone jack.

+ 44 hidden pages

Welch Allyn Acuity Installation Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Installation Guide

Introduction

About this manual

Safety and compliance information

Related documents

Plan the installation

System overview

Plan equipment location

Install Acuity LT System wiring

Power requirements

Install wiring