All rights reserved. Contents of this publication may not be reproduced in any form without
the written permission of Spacelabs Healthcare. Products of Spacelabs Healthcare are
covered by U.S. and foreign patents and/or pending patents. Printed in U.S.A. Specifications
and price change privileges are reserved.
Spacelabs Healthcare considers itself responsible for the effects on safety, reliability and
performance of the equipment only if:
• assembly operations, re-adjustments, modifications or repairs are carried out by persons
authorized by Spacelabs Healthcare, and
• the electrical installation of the relevant room complies with the requirements of the
standard in force, and
• the equipment is used in accordance with the operations manual.
Spacelabs Healthcare will make available, on request, such circuit diagrams, component part
lists, descriptions, calibration instructions or other information which will assist appropriately
qualified technical personnel to repair those parts of the equipment which are classified by
Spacelabs Healthcare as field repairable.
Spacelabs Healthcare is committed to providing comprehensive customer support beginning
with your initial inquiry through purchase, training, and service for the life of your Spacelabs
Healthcare equipment.
CORPORATE OFFICES
Corporate Headquarters
Spacelabs Healthcare
35301 SE Center Street
Snoqualmie, WA 98065
U.S.A.
Telephone: (1) 800-287-7108
Telephone: (1) 425-396-3300
Authorized EC Representative
Spacelabs Healthcare, Ltd.
43 Moray Place
Edinburgh, EH3 6BT
United Kingdom
Telephone: 44 (0) 131 240 6481
Fax: 44 (0) 131 240 6459
Please refer to http://www.spacelabshealthcare.com/en/company/trademarks for a full listing of
Spacelabs Healthcare trademarks. Other brands and product names used herein are trademarks of their
respective owners.
Caution:
US Federal law restricts the devices documented herein to sale by, or on the
order of, a physician.
Before use, carefully read the instructions, including all warnings and cautions.
The Ultraview® Digital Telemetry System is comprised of patientworn transmitters, a ceiling-mounted antenna system, receiver
modules, receiver module housings, central surveillance monitors,
and central strip recorders. Portable bedside patient monitors are
often incorporated into the telemetry system. A patient-worn
ambulatory blood pressure (ABP) monitor and its management
software may also integrate into the system.
Notes:
• Spacelabs Healthcare products and parts are designed and
manufactured in accordance with the Food and Drug
Administration’s (FDA) Quality System Regulation (QSR) and
in compliance with all applicable regulatory requirements. To
ensure proper operation in accordance with these guidelines,
Spacelabs products must be maintained by trained
technicians using only authorized replacement parts.
Spacelabs replacement parts have been thoroughly tested to
ensure reliable performance and include all of the latest
improvements and design changes available to ensure a
quality repair process.
• Prior to deployment of 90341/90343/90347/91341/91343/
91347 transmitters, hospital registration and deployment
registration must be performed with the WMTS Frequency
Coordinator. Refer to www.ashe.org for more information.
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1-1
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91341/91347 (ECG)
digital telemetry
transmitter
90341/90347
(ECG)
digital telemetry
transmitter
90343
(ECG and SpO
2
)
digital telemetry
transmitter
91343
(ECG and SpO2)
digital telemetry
transmitter
Diversity antenna
system
90478-Q receiver
module
90478-T/V
receiver module
SL2200/SL2400/SL2600
bedside or portable monitor
SL3800 central
monitor with SDLC
cabling (1)
90479-A/B/C Digital telemetry
receiver module housing
1
LTRAVIEW DIGITAL TELEMETRY -
ERVICE MANUAL
S
I NTRODUCTION
Figure 1-1 Ultraview Digital Telemetry system components
The patient-worn transmitter is a small, battery-powered device that
collects physiologic data and communicates it via radio frequencies
(RF) through a system of ceiling-mounted antennas to a receiver
and central monitoring station for viewing and analysis. The
transmitter must be in range of a receiver module or its ceilingmounted antenna system for surveillance monitors to display
waveforms and generate alarm events and patient data (trends).
Spacelabs offers several patient-worn transmitter models that vary
in frequency-operation and clinical functionality, described in Table
1-1 and in Table 1-2 on page 1-7.
I NTRODUCTION
1-4
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Table 1-1 Patient-Worn Transmitter Specifications: 90341, 90347, and 90343
I NTRODUCTION
Model,
frequency
(MHz), &
country
Regulatory
approvals
ECG onlyECG only
90341-74: 174.0125 to
197.9875 MHz (US)
90341-16: 198.0125 to
216.9875 MHz (US)
90341-16-IEC: 202.6875
to 205.1375 MHz
(Netherlands)
90341-50: 458.525 to
458.0875 MHz (UK)
90341-32: 433.0625 to
434.7875 MHz (Germany,
Austria, Czech Republic,
France, Italy, Spain,
Portugal, Belgium,
Netherlands, Australia)
90341-34: 433.075 to
433.350 MHz (Spain)
90341-52: 468.625 to
468.675 MHz (Finland)
90341-42: 438.025 to
439.975 MHz (Sweden)
90341-46: 440 to
441.975 MHz (Norway)
90341-40: 469.1625 to
469.850 MHz (Australia)
90341-53: 470 to
470.500 MHz (New
Zealand)
90341: 460 to 470 MHz
(US, Canada)
90341-05: 608 to
614 MHz
IncompatibilityNot compatible with 9034X telemetry processors
Output power<5 mW EIRP, max
Multiparameter
(ECG & SpO
A patient-activated RECORD button can be used to initiate an event
recording at the system printer (this feature must first be enabled at
the monitor using the ECG TM SETUP menu). All four telemetry
patient-worn transmitters incorporate a low battery indicator that
flashes when the battery capacity has approximately three hours of
remaining energy.
• Wideband (50 kHz) 90343, 90347, 91343, and 91347 ECG
transmission enables you to view two of seven available leads
(from four vectors with a synchronized RF digital signal).
• Narrowband (25 kHz) 90341/91341 ECG transmission enables
you to view either two of two or two of four available leads
(from two vectors with a synchronized RF digital signal).
• The 91341, 91343, and 91347 transmitter provides functionality
for local lead fault indicators and user-configurable transmit
frequency operation.
The front labels on the transmitters are color coded to their
compatible receivers.
• The 90341, 90343, and 90347 transmitter labels are blue.
• The 91341, 91343, and 91347 transmitter labels are green.
)
2
Selecting Options for the 90341/91341/91347 Lead Display
There are two operational modes available with the 90341 dual-lead
transmitter: (1) the standard mode which offers a choice of one V
lead (V1-6), plus lead II, or (2) the limb lead mode which offers
choices of the leads I, II, III, AVR, AVL, or AVF. The standard mode is
available if the chest lead is applied. The limb lead mode is available
when there is not a chest lead applied. Loss of the chest electrode
changes the ECG - LEAD SELECT menu to the limb lead mode if the
left arm, left leg, and right arm electrodes are intact.
Note:
Both modes work correctly with or without the right leg
electrode attached. However, for optimum performance, the
right leg electrode should always be used.
1-8
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Lead fault indicators
(91341 and 91347)
ERVICE MANUAL
- S
I NTRODUCTION
Table 1-3 90341/91341 Lead Options
Connected Electrodes (X)
C
(C)
LA
(L)
XXXXV1-6 and II (standard mode)
XXXIII (standard mode)
XXXI (standard mode)
XXTotal lead failure (standard mode)
XXXII (standard mode)
XXNone (lead failure)
XXNone (lead failure)
XNone (lead failure)
LL
(F)
RA
(R)
XNone (lead failure)
Val id Le ad Vecto rs
XNone (lead failure)
XNone (lead failure)
None (lead failure)
XXIII (limb lead mode)
XXI (limb lead mode)
XXII (limb lead mode)
XXXI, II, III, AVR, AVL, AVF (limb lead mode)
Notes:
• If one of the leads fails, a lead fault message will display in the
upper-left corner of the waveform zone. If there is not a valid
lead vector, the message LEADS OFF displays and an alarm
tone sounds.
• The 91341 and 91347 dual-lead transmitters have blue
indicators near the ECG connector block. Each indicator
provides the status of its respective lead wire and flashes if its
lead wire is disconnected from the skin electrode or if the skin
electrode makes poor electrical contact with the patient.
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Figure 1-2 91341/91347 transmitter
1-9
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Multiparameter Transmission (90343/91343)
The following data can be transmitted by the multiparameter,
patient-worn transmitter:
•SpO
• NIBP (with the model 90217 ABP monitor)
Battery Compartment SIP switches
(with Nellcor pulse oximetry sensors)
2
-saturation
-SpO
sensor status
2
-pulse rate
-systolic
-diastolic
-mean pressure
-measurement time
-alarm conditions
I NTRODUCTION
SpO2 data averaging is used to smooth the oximetry saturation
value by averaging the patient input values over 4, 8, or 16 seconds.
This selection is made by setting the SIP switches 1 and 2 beneath
the battery compartment in the multiparameter, patient-worn
transmitter. The default value is 8 seconds. Refer to Figure 1-3 on
page 1-11.
Caution:
Avoid using pencils or sharp instruments to configure the SIP
switches.
Notes:
• Setting both SIP switches 1 and 2 to ON disables SpO
transmission.
•To enable SpO
and re-install the battery.
• Disabling SpO
transmitter lengthens battery life.
SIP switch 1SIP switch 2Effect
OFFOFF4 seconds averaging enabled
, remove the battery, set the selected interval,
2
operation in the 90343/91343 patient-worn
2
Table 1-4 SIP switch 1 and 2 Settings
data
2
1-10
OFFON8 seconds averaging enabled (default)
ONOFF16 seconds averaging enabled
ONONDisable SpO
operation
2
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U LTRAVIEW DIGITAL TELEMETRY
1 2 3 4
SpO
2
averaging
period
SpO
2
reading
interval
5 6 7 8
ON
OFF
enable
normal
enabledisable
IABP
disable
NIBP
Adult
enable
NIBP
enable
IABP
enable
Neonate
enable
Service use
operation
ERVICE MANUAL
- S
I NTRODUCTION
The current setting of the SpO2 averaging period can be displayed
by pressing the ECG CHANNEL FORMAT key and enabling SpO
Figure 1-3 SIP switch setting in battery compartment
The sampling interval selection enables you to determine how often
an SpO
measurement will be taken. Less frequent SpO2 readings
2
can extend the usable life of the battery. (Refer toTransmitter
Battery Service Life1(hours) on page 1-12 for more information.) This
selection is made by setting SIP switches 3 and 4 beneath the
battery compartment. The default setting is CONTINUOUS.
Caution:
No SpO2 monitoring occurs between episodic sampling intervals.
Clinical practice or medical judgement should be used in selecting
continuous or episodic SpO
patient.
Table 1-5 SIP switch 3 and 4 Settings
monitoring mode for each specific
2
.
2
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SIP switch 3SIP switch 4Effect
Caution:
SIP switch 8 must remain OFF for normal operation.
OFFOFFContinuous sampling (default)
OFFON2-minute sampling interval
ONOFF5-minute sampling interval
ONON30-minute sampling interval
1-11
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Additional Data Transmitted
The following information is also transmitted:
• Patient record
• Low battery indicator
•Pacer flag
• Transmitter type and channel number codes
•Electrode connection status
Transmitter Batteries
The patient-worn transmitters use a 9V lithium or alkaline battery. A
yellow LED flashes when battery level is low.
Table 1-6 Transmitter Battery Service Life1(hours)
I NTRODUCTION
Battery
Type
Load
Conditions
90343,
91343
90341,
90347,
91341,
91347
9 Volt Alkaline (ANSI/NEDA 1604A)9 Volt Lithium (ANSI/NEDA 1604LC)
ECG
2
Only
ECG and
Continuous
SpO
2
ECG and 2minute
Episodic
SpO
2
ECG and 5minute
Episodic
SpO2
482436384012060100104106
5 2N /AN /AN /AN /A1 32N /AN /AN /AN /A
1 Operational service life (in hours) assuming a new alkaline battery
(minimum 580 mAH capacity) or lithium battery (minimum 1200
mAH capacity) used until the local low battery indicator begins to
flash.
2
NIBP operations from a 90217 ABP monitor sending readings to
the 90343/91343 multiparameter telemetry transmitter. The
90217 ABP monitor will inflate a standard size adult cuff at least
240 times with alkaline batteries.
ECG and
30-minute
Episodic
SpO2 and
NIBP
ECG
Only
ECG and
Continuous
SpO
2
ECG and 2minute
Episodic
SpO2
ECG and
5-minute
Episodic
SpO
2
ECG and
30-minute
Episodic
SpO
2
1-12
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I NTRODUCTION
Warning:
Medical telemetry spectrum allocations may be assigned to
frequencies already allotted to other priority users. This means
that telemetry operations may be exposed to radio frequency
interference that may disrupt or impede telemetry patient
monitoring. Customers are urged to regularly consult with
applicable local and federal regulatory agencies (e.g., FCC, FDA,
etc.) regarding the locations and frequencies of other spectrum
users in the customer’s geographic area. Spacelabs Healthcare
Service Representatives may be able to assist you in reconfiguring
your equipment frequencies to reduce this risk of potential
interference. Spacelabs cannot, and does not, guarantee
interference-free telemetry operation.
Cautions:
• This device has a limited bandwidth from .05 to 30 Hz, which
may adversely affect the recording of high frequency
components in the ECG signal, especially when the morphology
of the ECG changes rapidly.
• This device has a limited dynamic range of ±4 mV, which may
render the device vulnerable to saturation by ECG signals with
amplitudes higher than 4 mV.
• Use only the following solutions per the manufacturer’s labeling:
Isopropyl Alcohol (70%), Hydrogen Peroxide, Cidex, Betadine,
and chlorine bleach. Use of cleaning solutions other than those
listed will VOID the warranty on the equipment cases.
• Refer to Cleaning/Disinfecting on page 4-2 for additional
instructions.
Receiver Module (90478)
The 90478 telemetry receiver module analyzes the waveform sent
by a patient-worn transmitter. This analysis consists of evaluating
dual-lead arrhythmias and ST segments. The receivers also retain
patient data such as alarm events, arrhythmia and ST-segment
trends. On the central monitor’s display, each ECG waveform zone
generally represents the user interface for one receiver module.
Receiver modules are generally inserted into a 90479-A/B/C
receiver housing. The receiver housing allows each receiver module
to be directly connected to the antenna system via input connectors
(BNC) labelled ANT 1 and ANT 2. The receiver housing is connected
to a central monitor by an SDLC cable.
The 90478-Q receiver module can also reside in a bedside monitor.
Small whip antennas attach directly to the receiver’s input
connectors. In this case, the patient-worn transmitter may wirelessly
communicate directly with the receiver module and is not required
to connect to the ceiling-mounted antenna system.
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I NTRODUCTION
Each receiver module operates within a specific frequency band. A
receiver module can be tuned to any patient-worn transmitter’s
channel (operating frequency), provided the channel falls within the
same frequency band.
Monitor options provide 24 hours of trended data that can be
displayed in 2-, 6-, 12-, and 24-hour segments. Data is stored in 1minute resolution.
The receiver module counts as 1 or 2 parameters when computing
parameter capacity for monitors:
• 1 displayed ECG lead = 1 parameter
• 2 displayed ECG leads = 2 parameters
Signal reception requires the use of a different frequency (channel)
assigned to each receiver. In the U.S.A., these transmission
frequencies are regulated by the Federal Communications
Commission (FCC). In other countries, these transmissions are
regulated by the local communications authority.
Telemetry use is managed through the operation of the Ultraview
Care Network Module Configuration Manager. Refer to the Module Configuration Manager System Administration Guide (P/N 0701245-xx), located on CD-ROM P/N 084-1101-xx.
The high level analog output has the following characteristics:
ECG 1Used for defibrillator synchronization
Connector:3-conductor TT phone jack
Dynamic Range±5 mV, ±10% (rti)
GainECG × 1000, ±5%
Bandwidth0.05 to 30 Hz, ±10% (-3 dB)
Table 1-7 Transmitter/Receiver Compatibility
Transmitter
Model
90341-05
90343-05
90347-05
90343-16202.65 - 205.1590478-N, 90478-O
91347
91341
91343
91347
91341
1
91343
1
The 91341/91343/91347 ECG telemetry is used in conjunction with
the Multi-Band Active Antenna system to down-convert 1400
MHz emissions into the 600 MHz band for detection.
Operating Frequency
Range (MHz)
608 - 61490478-Q
1395 - 140090478-T
1427 - 1431.590478-V
Compatible
Receiver Module
1-14
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U LTRAVIEW DIGITAL TELEMETRY
TIP — Analog ECG out
RING — defib sync. input
sleeve — ground
1
2
3
4
5
1
high level output (hlo)
2
LED
3
ANT 1
4
ANT 2
5
handle
ERVICE MANUAL
- S
I NTRODUCTION
Table 1-8 Monitor Software Compatibility
Monitor
PC Express®Yes3.6 7.0 5
PC Scout
UCW
Ultraview 1030/1050Yes1.02.01
Ultraview 1500Yes1.03.03
Ultraview 1600Yes1.03.03
Ultraview 1700Yes1.06.61
Ultraview SL2400Yes2.00.03
Ultraview SL2700/2800/3800Yes2.00.03
®, PC Ranger®Yes3.53.36
®Yes1.0 6. 61
Compatible with
Ultraview Telemetry?
Minimum Software Version
Needed for Compatibility
Receiver Electrical Requirements
Power Consumption≤ 5.0 watts
External IndicatorsLED lights when user accesses control
Receiver Physical Dimensions
Height11.33 cm (4.46 inches)
Width5.69 cm (2.24 inches)
Depth17.78 cm (7 inches)
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Weight1.09 kg (2.4 pounds)
Figure 1-4 Receiver module
1-15
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1
2
3
4
1 receiver
module slot
(for eight
modules)
2 antenna cable
(pulled out)
3 antenna cable
(stowed)
LTRAVIEW DIGITAL TELEMETRY -
ERVICE MANUAL
S
I NTRODUCTION
Warnings:
• Telemetry systems may be more susceptible to interference than hardwired systems,
which may impact patient safety.
• Operation of hand-held, wireless telephone equipment (cordless telephones, cellular
telephones) near telemetry systems may cause interference and should be
discouraged. While personal communication devices are powered ON, a separation
of >6.5 feet (>2 meters) should be maintained between personal communication
devices and interior walls, the patient cables, and any electronic medical device to
which the patient may be connected. Patients should not use any type of electronic
communication equipment while connected to any electronic medical device without
an on-site evaluation by the biomedical staff. Two-way radio equipment and other
personal communication devices must be evaluated on site to determine if
additional space limitations are needed.
• Do not install a telemetry receiver module into a bedside which is currently equipped
with any other ECG module, hardwired or telemetry (or SpO
module if the 90343 or 91343 is operating with that specific receiver module). Doing
so may result in inaccurate patient data displays at remote monitors.
• Only 90478-Q modules may be installed in transport monitors.
module or NIBP
2
Receiver Housing (90479-A/B/C)
The receiver housing is used for centralized telemetry applications
and connects directly to a central monitor through an SDLC cable. It
provides up to eight plug-in slots for telemetry receiver modules.
Additional receiver modules may be utilized by connecting another
receiver housing to the SDLC bus (refer to SDLC Configurations on
page 2-6). A diversity antenna system connects to the back of the
housing. Special dual cable assemblies on the front panel plug into
each receiver’s antenna inputs (ANT 1 and ANT 2). Except for power
ON/OFF switches (AC mains and battery), there are no operator
controls. An indicator lamp on the front panel lights when the unit is
connected to AC power. An internal battery provides at least ten
minutes of operation when AC power is lost. (Refer to Receiver
Housing Power Operation on page 2-11.)
1-16
Figure 1-5 90479-A receiver housing front view
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U LTRAVIEW DIGITAL TELEMETRY
1
2
3
1 receiver
module slot
(for eight
modules)
2 antenna cable
(stowed)
3 AC line status
light
ERVICE MANUAL
- S
Figure 1-6 90479-B/C receiver housing front view
Receiver Housing Physical Dimensions
Height30.5 cm (12.0 inches)
I NTRODUCTION
Width34.3 cm (13.5 inches)
Depth44.5 cm (17.5 inches), includes protective cover
Weight14.6 kg (32 pounds), without modules loaded
23.6 kg (52 pounds), with eight modules loaded
Receiver Housing Power Requirements
100 to 120 VAC, 50/60 Hz, 2 A
220 to 240 VAC, 50/60 Hz, 1 A
Receiver Housing Environmental Requirements
Operating
Temperature10° to 40° C (50° to 104° F)
Humidity95% (non-condensing)
Altitude0 m to 3048 m (0 to 10,000 feet)
BTU Out256 BTU/h with eight modules loaded
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Cooling50 CFU
1-17
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1
2
3
7
6
4
5
1
23
6
5
7
4
90479-B/C
90479-A
LTRAVIEW DIGITAL TELEMETRY -
ERVICE MANUAL
S
Storage
Temperature-40° to 65° C (-40° to 149° F)
Humidity95% (non-condensing)
Altitude-152.4 m to 12,192 m (-500 to 40,000
Receiver Housing Rear Panel
I NTRODUCTION
feet)
1-18
Figure 1-7 Receiver housing rear panel
1 SDLC cable
2 SDLC connectors (4)
3 High level outputs
4 AC power switch and fuse assembly
5 Inputs for diversity antennas (ANT 1, ANT 2)
6 SDLC terminator
7 DC power ON/OFF switch
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Setup
Unpacking
Each patient-worn transmitter, receiver module, and receiver
housing are packaged individually. Unpack the transmitter and its
accessories, the SpO
Unpacking the Patient-Worn Transmitter on page 2-2). Carefully
unpack the receiver housing (refer to Unpacking the Receiver
Housing on page 2-3). When removing the packing material around
the front panel take care not to damage the antenna cables. These
cables should be properly stowed in the appropriate cable ports on
the front bezel [refer to Receiver Housing (90479-A/B/C) on
page 1-16].
Ensure that you do not turn the rear panel DC power switch ON. This
unnecessarily drains the battery. Remove the accessories from the
packing carton (e.g., power cord, power cord retainer, SDLC cable,
and manual) to inspect each for damage. Also inspect the air filter
on the bottom of the receiver housing.
Unpack each receiver module from its shipping container for
inspection (refer to Unpacking the Receiver on page 2-3). Save all
packing materials in case a part must be returned.
adapter cable, and its accessory kit (refer to
2
Caution:
Open containers carefully to prevent any damage to equipment.
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Note:
If your equipment shows evidence of shipping damage,
immediately notify the carrier and Spacelabs Healthcare.
2-1
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Unpacking the Patient-Worn Transmitter
To unpack the transmitter
Notes:
• For the 90341 illustration, refer to Drawing 1, Sheet 3 of 3,
right side.
• For the 90343/91343 illustration, refer to Drawing 2, Sheet 3
of 3, right side.
• For the 90347 illustration, refer to Drawing 5, Sheet 3 of 3,
right side.
• For the 91341/91347 illustration, refer to Drawing 6, Sheet 1 of
2, right side.
1 Cut the white label using a knife (with the transmitter’s serial
number) that holds the container flap shut, along the edge of
the container.
2 Pull the container flap open. Pull from the edge cut-outs of the
cardboard insert to expose the transmitter.
3 Pull the transmitter out of the container, by holding the
transmitter from opposite ends at the cut-outs in the
cardboard insert.
4 Remove transmitter from its bag. The 90343/91343 transmitter
includes two connector caps.
5 Remove the cardboard insert from the container to expose the
SpO
adapter cable assembly (90343/91343 only), the
2
connector cap kit (90343/91343 only) and the transmitter
accessory kit.
6 Open the accessories bag (except for the connector cap kit
which includes four spare caps), to verify its contents: SpO
adapter cable, ECG lead wire set (5 lead wires), transmitter
pouch, two 9-volt batteries, belt clip, and related screws.
7 Retain the Wireless Medical Telemetry Service (WMTS)
registration card.
8 Save all packing materials in case the transmitter must be
returned.
S ETUP
2
2-2
Notes:
• Prior to deployment of 90341/90343/90347/91341/91347/
91343 transmitters, hospital registration and deployment
registration must be performed with the WMTS Frequency
Coordinator.
• Refer to www.ashe.org for more information.
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Unpacking the Receiver Housing
To unpack the receiver housing (refer to the
Drawing 12, Sheet 1 of 1)
1 Cut the tape that holds the container flaps shut using a knife at
the container top end.
The container top end is up when the writing on the sides of the
box reads right-side-up.
2 Remove the two bagged accessories situated on the top foam
insert and set them aside.
3 Carefully turn the container upside down with all four flaps out
of the way.
4 Gently pull the container up and out of the way, to expose its
contents.
5 Remove the top foam insert exposing the receiver housing
bottom end.
6 Set aside the third bagged accessory containing the AC power
cord.
7 Turn the receiver housing right side up, on its feet.
8 Remove the foam insert at the top of the receiver housing and
the front panel foam rails protecting the protruding antenna
cables. Cables must remain properly stowed in the appropriate
front panel cable ports.
9 En sure t hat you do not turn t he r ea r pa nel DC pow er swi tch ON .
This is unnecessary and drains the battery.
10 Open the three bagged accessories and verify that the
contents include the power cord, the power cord retainer and
bracket, the related screws and washer, the SDLC terminator,
the cable adapter assembly (DB26HD male to DB9 male), and
the documentation.
11 Inspect the air filter on the bottom of the receiver housing.
12 Save all packing materials in case the receiver housing must be
returned.
S ETUP
Unpacking the Receiver
To unpack the receiver (refer to Drawing 3,
Sheet 2 of 2)
1 Cut the white label using a knife (with the receiver’s serial
2 Pull the container flap open.
3 Remove the receiver from the container.
4 Save all packing material in case the receiver must be returned.
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number) that holds the flap shut, along the edge of the
container.
2-3
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SDLC terminator
free SDLC port
LTRAVIEW DIGITAL TELEMETRY -
ERVICE MANUAL
S
Receiver Housing Configuration
To ready the 90479-A/B/C receiver housing
for operation
1 Set the receiver housing in the area where it will be operated.
Choose a location that provides good ventilation, and ensure
that air flow for the air intake (bottom) and exhaust (rear top)
are not obstructed.
2 Verify that the receiver housing is configured for the correct AC
line voltage by inspecting the line voltage indicator on the rear
panel power entry module. The correct setting for input
voltages from 100 to 120 VAC is 115. The correct setting for
input voltages from 220 to 240 VAC is 230. If the line voltage
setting is incorrect, refer to AC Mains Voltage Selection on
page 2-8.
3 Attach the AC power cord and install the power cord retainer
(follow the instructions).
4 Cable the SDLC connections (for illustrations of other SDLC
connections, refer to SDLC Configurations on page 2-6).
aTo configure SDLC connections for a typical eight-receiver
housing, connect one end of the SDLC cable to the free SDLC
port on the rear of the unit. Ensure that the SDLC terminator
is in place.
S ETUP
Note:
An SDLC cable is not provided with the receiver housing. To
connect to the central monitor, contact Spacelabs Healthcare
customer service for instructions.
Figure 2-1 Rear panel
bWhen finished routing the SDLC cables, position the receiver
housing in its permanent location.
5 Connect the free end of the 9-pin SDLC cable to the SDLC port
on the central monitor or module housing.
6 Connect the diversity antenna down leads to the two antenna
ports on the rear panel.
2-4
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ANT1
ANT2
ANT1
ANT2
90479-B/C
90479-A
ERVICE MANUAL
- S
S ETUP
Figure 2-2 Antenna port locations
Note:
The antenna system should have been previously installed and
optimized.
7 Plug the power cord for the receiver housing into a grounded
AC outlet and switch the AC Power switch ON. Verify that the
power indicator lamp on the front bezel is lit. If not, refer to
Troubleshooting on page 5-1.
8 Turn the rear panel DC power switch ON. Verify that both fans
are operating by feeling for air flow inside each 4-module bay.
If these fans are not operating, refer to Troubleshooting on
page 5-1.
9 Switch central monitor power ON.
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2-5
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1
2
34
5
6
7
8
90479-B/C
90479-A
1
2
34
5
6
7
8
terminator
J100 J200
J300 J400
to central monitor
LTRAVIEW DIGITAL TELEMETRY -
ERVICE MANUAL
S
SDLC Configurations
S ETUP
The receiver housing provides four SDLC bus connections on the
rear panel marked J100, J200, J300, and J400.
• J100 and J200 are for connecting channels 1-4.
• J300 and J400 are for connecting channels 5-8.
Channels 1-8 may be connected on the same bus by installing a short
SDLC cable between J200 and J300.
Figure 2-3 on page 2-6 displays how the channel numbers
correspond to the housing bays as viewed from the front.
Figure 2-3 Housing bay channels
Refer to Figure 2-4, Figure 2-5, Figure 2-6, and Figure 2-7 for the
acceptable SDLC cabling configurations for the receiver housing.
Figure 2-4 One to four channels
Note:
With this configuration, module bays 5 through 8 are not
operational.
2-6
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terminator
to central monitor
short SDLC cable
terminator
to central monitor
1.2 m (4 ft) recommended
receiver housing Areceiver housing B
terminator
to
to
terminator
4 ft recommended
4 ft recommended
central monitor #2
central monitor #1
receiver housing Breceiver housing Creceiver housing A
ERVICE MANUAL
- S
S ETUP
Figure 2-5 Five to eight channels
Figure 2-6 Nine to twelve channels
Note:
With this configuration, module bays 5 through 8 of receiver
housing B are not operational.
Figure 2-7 More than twelve channels (splitting one housing between
two central monitors)
Note:
With this configuration, central monitor 1 will interface with all
90478 receiver modules installed into receiver housing A, and
those installed into bays 1 through 4 of receiver housing B.
Central monitor 2 will interface with all 90478 receiver modules
installed into receiver housing C, and those installed into bays 5
through 8 of receiver housing B.
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current AC
selection
fuse
screwdriver
fuse assembly and
AC power switch
voltage selector
(pull out)
read selected
voltage here
LTRAVIEW DIGITAL TELEMETRY -
ERVICE MANUAL
S
AC Mains Voltage Selection
AC power input voltage configuration (115 or 230 VAC) for the
receiver housing is determined by the position of a selector switch in
the fuse assembly. The currently selected voltage configuration is
identified in a small window on the fuse assembly.
To change the voltage selection
1 Disconnect the AC power cord.
Pry open the fuse compartment located directly below the AC
power switch on the back of the receiver housing and, with a
small screwdriver, pry out the fuse assembly.
S ETUP
Figure 2-8 Changing the voltage selection
2 Remove the voltage selection strip, rotate it 180° and insert it
back in with the correct AC line voltage showing (115 or 230) in
the fuse assembly window.
Figure 2-9 Voltage selector re-inserted
Note:
After changing the voltage selection, ensure that the correct
fuses are installed. Refer to Fuse Replacement on page 2-9 for
the required fuse type.
2-8
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ERVICE MANUAL
- S
Fuse Replacement
Caution:
Receiver Installation
S ETUP
To replace AC line fuses for the receiver
housing
1 Disconnect the AC power cord and turn the DC switch OFF.
2 Pry open the fuse compartment located directly below the
mains power switch on the back of the receiver housing (refer
to Figure 2-8 and Figure 2-9).
3 Pull out the fuse holders and replace any blown or incorrect
fuses. Use T2.5 A fuses for 115 VAC operation or T1.6 A fuses for
230 to 240 VAC operation.
When replacing fuses, ensure that the voltage selector remains in
the correct position.
To install receiver modules into the receiver
housing
1 Ensure that the SDLC connections between the receiver
housing and monitor are correct (refer to SDLC Configurations
on page 2-6).
2 Power ON the receiver housing (refer to Receiver Housing
Power Operation on page 2-11).
3 Insert each receiver module into any available slot in the
receiver housing (limit of eight).
Note:
If the SDLC bus is configured for 1-4 channels, as shown in SDLC
Configurations on page 2-6, use only slots 1-4.
4 Plug the closest antenna cable into the receiver antenna inputs
after correctly inserting each module (ANT 1 and ANT 2). On
the 90478-A, the dual RF coax cable assemblies are routed out
the front bezel of the receiver housing to a dual BNC plug
connector which plugs directly into a receiver module. Each
dual RF coax cable plug is installed with the rounded side up.
On the 90479-B/C, the antenna cables are separately labelled
ANT 1 and ANT 2, and do not use a dual BNC plug.
RF cables should be routed to installed receivers as illustrated
in Figure 2-10.
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1
2
34
5
6
7
8
90479-B/C
90479-A
1
2
34
5
6
7
8
ANT 1
ANT 2
ANT 1
ANT 2
receiver slots 1-4receiver slots 5-8
LTRAVIEW DIGITAL TELEMETRY -
ERVICE MANUAL
S
S ETUP
Figure 2-10 Module housing module slots
Note:
For module slots 1-4 (above), the upper connector in the plug
corresponds to ANT 1 input on the rear panel; for module slots 58, the lower connector in the plug corresponds to ANT 1 input on
the rear panel. This is done to simplify the internal wiring and has
no impact on performance. For module positions 5-8, do not
become alarmed that ANT 1 input from the rear panel goes into
ANT 2 input on the receiver and vice-versa. You must remember
this fact when troubleshooting antenna or diversity problems.
2-10
Figure 2-11 Dual RF coax plug (90479-A only)
5 Observe the monitor screen after plugging antenna cables into
every receiver. One numeric key should appear along the
bottom row of the screen for each receiver module installed. If
not, refer to Troubleshooting on page 5-1.
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AC ON/OFF
1 = ON
0 = OFF
DC power ON/OFF
bottom in = ON
(red marking shows)
top in = OFF
ERVICE MANUAL
- S
Receiver Housing Power Operation
The receiver housing operates on 115 or 230 VAC and contains an
internal battery that maintains memory during brief power
interruptions. Two separate power switches on the units rear panel
control power operation.
S ETUP
Figure 2-12 Receiver housing rear panel
The AC mains switch, located on the right side of the rear panel,
must always be ON for normal operation. With this switch ON (1)
and AC power connected, the receiver housing is operating in
Standby mode and is charging its internal batteries, and the green
light indicator should be lit.
A DC power switch is found on the left side of the rear panel. This
switch should be used as the unit power ON/OFF control. When in
the ON position (bottom pushed in and red marker visible at top), it
applies operating power to the receiver modules plugged into the
receiver housing.
Caution:
If the DC power switch is ON and the AC power switch is OFF, the
unit is running on batteries only and will shut down in
approximately ten minutes if the batteries are fully charged.
Each patient-worn transmitter’s RF PCBA contains two banks of
single inline package (SIP) switches (SW1 and SW2) that define the
channel used by the transmitter. These switches set up a binary
code that is transmitted to the receiver along with patient
information. Twelve bits on SW1 and SW2 define the transmitter
channel ID number and the remaining four bits define the
transmitter type (90341, 90343, or 90347).
The channel ID number is decoded by the receiver and is used to
confirm that data from the intended transmitter is being received.
SW1 and SW2 are set at the factory and normally do not require
changing in the field.
Note:
This information on transmitter switch settings is provided to
allow a qualified technician to correctly reset them should they
be changed. You cannot change transmitter frequencies without
also realigning the transmitter’s tuned circuits.
These switches may be set by changing individual switch positions
with a small screwdriver. Switch polarity and position numbers are
indicated on the switch. A 1 corresponds to the switch being ON,
and a 0 corresponds to OFF.
S ETUP
Note:
The correct crystal frequency for the selected channel must be
installed. Part numbers for ordering the required crystal are
provided in Table 2-11 on page 2-50 and Table 2-12 on page 2-56.
Figure 2-13 displays an example of the switch settings for channel
2242 on a 90347-05 transmitter (top) and a 90343-05 transmitter
(bottom). (Refer to Table 2-11 on page 2-50 for details.)
Figure 2-13 Example of switch settings for 90347-05 and 90343-05
2-12
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87
transmitter type
(90341-05)
SW2
channel ID
(1242)
65
432
1
871
OFF
ON“i”
“O”
SW1
65432
ERVICE MANUAL
- S
Figure 2-14 displays an example of the switch settings for channel
1242 on a 90341-05 transmitter. (Refer to Table 2-12 on page 2-56
for details.)
Figure 2-14 Example of switch settings for 90341-05
Notes:
•O = switch OFF
•I = switch ON
Patient-Worn Transmitter Configuration
S ETUP
(91341, 91343, 91347)
The RF PCBA in 91341, 91343, and 91347 1400-MHz transmitters may
contain two banks of single inline package (SIP) switches (SW1 and
SW2) or resistor packs. These switches or resistor packs are used to
define the transmitting frequency, and are accessible through the
battery access area. These switches also:
• Set up a binary code that is transmitted to the receiver along
with patient information.
• Program the operating frequency on which the 91341, 91343, or
91347 transmits.
Changing the Default Settings
SW1 and SW2 are set at the factory and normally do not require
changing in the field. However, if a different operating frequency is
desired, the following procedure must be strictly followed.
Notes:
• Avoid selecting a transmitter channel that is already in use, or
a transmitter channel that is deployed within your hospital.
• Refer to Tools for Tracking Transmitter Channels on
page 2-20 for suggestions on how to track transmitter
channels.
• Always perform transmitter configuration outside areas where
clinical telemetry monitoring is performed. This ensures that
the transmitter being reconfigured does not create
interference for those transmitters currently in use.
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2-13
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Transmitter
Type
Channel Number
SW2
(Rpack 2)
SW1
(Rpack 1)
LSB
MSB
C12345678C12345678
LTRAVIEW DIGITAL TELEMETRY -
ERVICE MANUAL
S
• All channels must be registered with the WMTS Frequency
Coordinator prior to deployment in the United States.
Units with Resistor Pack Programming
Notes:
• Transmitter switch settings should only be changed by
qualified field service engineers.
• The 91341-09 transmitter must always be set to (0001) for the
four most significant bits (MSB) of SW2. This switch setting
indicates a narrow band standard mode.
• The 91347-09 transmitter must always be set to (0000) for
the four MSBs of SW2.
• The 91343-09 transmitter must always be set to (0011) for the
four MSBs of SW2.
1 Refer to Table 2-7 on page 2-29 or Table 2-8 on page 2-36 for the
desired channel.
2 Open the battery compartment door and confirm the presence of
the two sockets labeled SW1 and SW2 on the RF board. If present,
remove any existing resistor packs from the SW1 and SW2
sockets.
3 Open the resistor pack replacement kit, which contains two
resistor packs. Designate one resistor pack as Rpack1 and the
other as Rpack2. Use an indelible marker and write “Rpack1” or
“Rpack2” on the appropriate devices. Rpack1 will be used for the
SW1 socket and Rpack2 will be used for the SW2 socket. Refer to
Figure 2-15.
S ETUP
Figure 2-15 Location of resistor packs and pin code designators
4 Identify the common lead (or “pin”) on each of the resistor packs.
The common pin is identified by a “dot” (•). The pin immediately
adjacent to the common pin is pin 8 (MSB), and the pin furthest
from the common pin is pin 1 (LSB).
5 Note the pin numbers for each of the resistor packs. Refer to
Figure 2-15 for the pin assignments and designations.
2-14
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socket
resistor
pack
foam pad
ci rcuit board
ERVICE MANUAL
- S
S ETUP
aRpack1, pins 1 to 8, and Rpack2, pins 1 to 4, define the channel
number of the transmitter. Rpack1 pin 1 is the LSB, and Rpack2
pin 4 is the MSB.
bRpack2 pins 5 to 8 define the type of the transmitter. Pin 5 is
the LSB, and pin 8 is the MSB.
Table 2-7 on page 2-29 and Table 2-8 on page 2-36 contain
listings of the channel numbers and “1” or “0” designations for
each of the pins for SW1 (Rpack1) and SW2 (Rpack2).
6 Confirm that the desired channel is compatible with the
transmitter model type to be configured.
7 With an indelible marker, mark all the “0” pins on each of the
resistor packs for the desired channel selected. Verify the location
of the marks before proceeding to the next step.
8 With a sharp, fine-point cutter, cut the pins marked with “0” flush
to the body of the resistor pack. Confirm that the pins are cut
flush to the resistor pack body. Any stub could inadvertently
short to the socket. Do NOT damage the resistor pack body.
Note:
Do not remove the common pin (pin “C”) on the resistor packs.
9 Insert Rpack1 and Rpack2 resistor packs straight down into their
designated sockets with the pin “C” oriented as shown in
Figure 2-15.
10 Place the 1.8-inch x 0.2-inch long double-stick foam pad from the
kit onto the circuit board between the socket strips and the board
edge. The foam pad should span the length of the two socket
strips.
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Figure 2-16 Side view of the resistor pack with bent pins over the
foam pad
11 Fold the resistor pack bodies gently toward the edge of the board
(away from the IR shields) until they make full contact with the
double-stick foam pad. Do not force the resistor pack pins
beyond a 90-degree bend. Refer to Figure 2-16.
Note:
Verify the resistor pack “0” pins are cut flush and do not contact
the sockets. Verify the uncut pins remain properly seated in their
sockets.
12 Reassemble the transmitter unit.
13 Refer to Figure 2-23 and use the appropriate 90478-T or 90478-
V receiver and a patient simulator to confirm reception with the
intended transmitter.
2-15
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most
significant
bit (MSB)
SW2
SW1
mode
narrow band
↑ ON = I
↓ OFF = O
least significant bit
MSB
channel number
LTRAVIEW DIGITAL TELEMETRY -
ERVICE MANUAL
S
Units with SIP Switch Programming
1 Select the preferred transmitter channel. Refer to your internal
Telemetry Spectrum Management Log.
2 Open the 91341/91343/91347 battery compartment door and
access SW1 and SW2.
Note:
Transmitter switch settings should only be changed by qualified
field service engineers.
SW1 and SW2 may be set by changing individual switch positions
with a small screwdriver. (Orient the transmitter as displayed in
Figure 2-17.) Switch polarity and position numbers are indicated
on the switch. A 1, which is the switch in the upward position
corresponds to the switch being ON, and a 0, which is the switch
in the downward position corresponds to OFF.
Notes:
• The 91341-09 transmitter must always be set to (0001) for the
four MSB of SW2. This switch setting indicates a narrow band
standard mode.
• The 91347-09 transmitter must always be set to (0000) for
the four MSBs of SW2.
• The 91343-09 transmitter must always be set to (0011) for the
four MSBs of SW2.
Refer to Table 2-7 on page 2-29 and Table 2-8 on page 2-36 for
more details.
S ETUP
2-16
Figure 2-17 Example of switch settings for the 91341/91343/91347
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transmitter type (SW2)
channel number (SW1)
narrow band
channel number
narrow band
channel number
2048 1024 512 256 128 64
channel number
narrow band
128 64 32 16
2048 1024
narrow band
channel number
narrow band
channel number
2048 1024 512 256 128 64
multiparameter
channel number
wide band
2048 1024 512 256 128 64
channel number
ERVICE MANUAL
- S
S ETUP
Figure 2-18 SIP switch settings layout
Figure 2-19 Example of 91341-09, channel 1050 (0001 0100
00011010)
Figure 2-20 Example of 91341-09, narrowband channel 1199 (0001
0100 10101111)
Figure 2-21 Example of 91343-09, channel 2002 (0011 0111 11010010)
Figure 2-22 Example of 91347-09, channel 2522 (0000 1001
11011010)
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LTRAVIEW DIGITAL TELEMETRY -
ERVICE MANUAL
S
1 Update your internal Telemetry Spectrum Management Log with
the new frequency selection and configurations.
2 Perform re-deployment procedures as required by FCC rules.
Contact the WMTS Frequency Coordinator to update their
database.
3 Refer to Figure 2-23 and use the appropriate 90478-T or 90478-
V receiver and a patient simulator to confirm reception with the
intended transmitter.
Verifying Correct Frequency Operation
1 Verify correct operating frequency operations before deploying
the new configured transmitter to a clinical environment.
S ETUP
2-18
Figure 2-23 Test setup
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ERVICE MANUAL
- S
S ETUP
Table 2-1 Transmitter Setup
Component Description
Multi-Band Active Antenna650-1381-xx22.526.51
Down Converter Side-A Standard672-0365-xxN/A111
2-Way splitter, 500 MHz-1500 MHz, 1.5
amp, F-Con
Power Inserter, 1.5 amps119-0482-00-0.5-1.01
Power Supply 1.5 Amp +24 VDC010-1565-01N/AN/A1
10' Plenum, RG-59, F Connectors175-1053-10-0.8-1.25
DC Block,1.5 amps376-0008-00-0.3N/A2
Pad, 10dB, F-Type, M-F368205-002-10-103
Note:
Before the new telemetry operating frequency is enabled you
must:
• Remove the battery.
• Reconfigure the SW1 and SW2 switches.
• Re-install the battery.
• Power the 91341/91343/91347 for 5 seconds.
Spacelabs
Part Number
117-0160-00-3.4-3.51
Gain/Loss
(dBm) @
600 MHz
Gain/Loss
(dBm) @
1400 MHz
Quantity
Antenna System Installation
Site Survey
1 Perform path loss measurments of the coverage area. This will
determine the correct antenna placement and ensure adequate
coverage. The minimum signal level in the patient room should be
-80 dB.
2 Ensure that antennas from both the A side and B side of the
diversity antenna system cover the same area.
Design
To facilitate the design of the antenna system, create an antenna
design schematic that shows the components with their losses or
gains to the receiver housing.
Installation
The antenna system should be as installed per the schematic design.
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ERVICE MANUAL
S
Verification
S ETUP
1 Inject a known signal source into the antenna system at each
antenna: disconnect the antenna and inject the signal at the cable
that was attached to the antenna.
2 Troubleshoot any antenna legs that are ±2.5 dB different from the
othe antenna legs that have been measured for improper
installation of components or defective components.
3 Adjust the gain at the receiver housing from the gain specified in
the design to the actual gain by adding amplification or loss by
the receiver housing side of the antenna system. This value may
be different from side A to side B of the diversity antenna system.
On multiband antenna systems, adjust the 1400-MHz side of the
antenna system at the first amplifier above the down converter.
4 While wearing a transmittter, walk around the coverage area with
the antenna system monitored by a spectrum analyzer to verify
that signal levels do not drop lower than -85 dB for the 400 MHz
or 600 MHz antenna system, and -90 dBm for a 1400 MHz
antenna system. For a multiband antenna system, both the 600
MHz and 1400 MHz sides must be tested.
For further assistance with antenna system installations, or for
maintenance questions, contact a Spacelabs Healthcare field service
engineer.
Tools for Tracking Transmitter Channels
There are several methods to assist you in tracking transmitter
channels.
• A Telemetry Spectrum Management Log (Refer to Hospital
Telemetry Spectrum Management Log Example on page 2-21)
• Frequency and Channel Tables [Refer to Table 2-7 on page 2-29
and Table 2-8 on page 2-36 for the 91341 transmitter, and refer
to Table 2-9 on page 2-43 and Table 2-10 on page 2-46 for the
91343/91347 transmitters.]
• The WMTS Frequency Coordinator (www.ashe.org)
• Your Spacelabs Healthcare Service Representative
2-20
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ERVICE MANUAL
- S
Table 2-2 Hospital Telemetry Spectrum Management Log Example
Wideband and Narrowband Channel Coordination and
Deployment
When using both wideband and narrowband telemetry transmitters
in the same antenna system, wideband and narrowband channel
conflicts must be avoided:
• Using any wideband channel will automatically exclude the use
of three narrowband channels.
• Using a narrowband channel will automatically exclude the use
of one or two wideband channels.
Example 1, wideband and narrowband channel allocation/
deployment for 600-MHz transmitters:
When using a model 90347-05 transmitter on channel 2242, or a
90343-05 transmitter on channel 2242, you cannot use or deploy a
90341-05 transmitter set to channel 1241, 1242, or 1243.
Example 2, wideband and narrowband channel allocation/
deployment for 1400-MHz transmitters:
When using a model 91347-09 transmitter on channel 2002, or a
91343-09 transmitter on channel 2002, you cannot use or deploy a
91341-09 transmitter set to channel 1001,1002, or 1003.
Prior to assigning new narrowband or wideband channel numbers,
all institution channel numbers and transmitter types must be
identified, including spares. If there is insufficient space (because of
many small gaps in current channels) to add the desired new
channels, re-channelization may be required. For more information,
contact your Spacelabs Healthcare field service engineer.
Refer to Table 2-4, Table 2-5 on page 2-26, and Table 2-6 on page 227 to determine where wideband and narrowband channels overlap.
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Note:
Wideband channel 2480 is not used because it falls outside of
the 608-614 MHz spectrum by 12.5 KHz.
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ERVICE MANUAL
S
Table 2-4 Wideband and narrowband channel allocation, 600-MHz transmitters