System Part Number: 900-0782-81, -91
Document P/N: 551-0782-81, Rev C1
December 2014
Installation Guide
Peninsula Engineering Solutions may change specifications as necessary to meet industry requirements. © 2014 Peninsula Engineering Solutions, inc.
Turn on the RMAS-120 Alarm Transmitter
and verify operation by pressing the LED
Switch. All alarm LEDs should light briefly
(lamp test) and then only the actual alarms
will remain ON.
Confirm the RMAS-120 Alarm Transmitter
OPTO COPLR jumper is set to ENB.
RMAS-120-81 UHF Telemetry
Receiver
The 090-0784-81, -91 UHF Receiver
Assembly is shown in Figure 6.
Figure 6, UHF Telemetry Receiver Assy
Mounting
The UHF Receiver Assembly mounts in a
19-inch rack. The unit is 2U high with a
5-inch front projection.
Antenna
A directional antenna should be installed on
the tower or antenna support structure that
also mounts the microwave antennas.
Normally, the UHF path is parallel to one of
the microwave paths and Line-of-Sight is
expected.
Peninsula Engineering Solutions, inc. Telephone +1 925 837-2243
POB 1095 Facsimile +1 925 837-2298
Danville, California 94526, USA Internet www.peninsulaengineering.com
Antenna feedline can be 3/8” or ½” Foam
Filled Coax terminated in a Type-N(m)
connector at the radio end.
The gain of the antenna and feedline
combination may be limited by regulations.
The maximum EIRP is +36 dBm. With the
transmitter set at low power, 100mW or
+20 dBm, the antenna gain – feeder loss
must not exceed 16 dBi. If the high power
setting is used, 1-Watt or +30 dBm, the net
gain limit is 6 dBi.
Lightning Arrestor is recommended.
UHF Receiver Settings
The GE MDS NETio radio has been factory
set for the application. If changes are
required, see the section Admin Access to
the GE MDS NETio following, or the GE
MDS NETio manual for details, 05-4457A01,
Rev D or later, PES PN 551-0790-01.
Figure 7, Rx MDS Modules
Connections
UHF Receiver Assy Connect to:
UHF Antenna Port,
Type-N(f)
UHF Antenna feedline,
Type-N(m)
Caution!
Once battery is connected, the UHF Receiver will
begin operating. This unit includes a
UHF transmitter.
20-60 VDC IN, GND, +, -
Isolated Input
Fuse at 1 Amp
For Negative Battery,
jumper the (+) terminal to
GND and connect to Rack
Ground.
Connect fused (-) Battery
to the (-) terminal.
Figure 8, UHF Receiver, Rear
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