5.
Expansion Output
n (f) connector to connect to the optional 8 way expansion unit.
6.
RF Output
one of eight n (f) connections to the receivers.
7.
RF Input
n (f) connection to the receiver antenna via a receiver preselector.
8.
Power Connector
2
way phoenix connector to connect to the dc power supply.
9.
Alarm Connector
3
way phoenix connector to connect to external alarm devices.
10.
USB Control LED
Yellow Led which lights when the gain is controlled by the switches on the rear panel.
11.
Gain Control LED
Yellow Led which lights when the gain is controlled by the usB programmed value.
12.
Earth Screw
Termination for connection to an equipment earth.
pRoGRaMMInG
a usB serial communications port is
provided on the Receiver Multicoupler. This
port can be used for programming, status
and alarm interrogation and firmware
upgrades.
The communications protocol uses a
simple, text-only terminal emulation format
compatible with most common types of
computers. usB drivers are provided on a
cd with each Receiver Multicoupler unit.
programmable parameters include;
site name
Gain setting
Manual or programmable Gain control
when connected to a landline or wireless modem, this usB connection can be used to facilitate remote programming
and/or monitoring of the Receiver Multicoupler.
aLaRMs
The new Receiver Multicoupler models feature integral power supply and amplifier stage status monitoring and alarm
reporting. parameter status can be interrogated via the unit’s usB port. alarm conditions are presented by Led
indicators and also by dry-voltage relay contacts, with both normally-open (n.o.) and normally-closed (n.c.) connec-
tions available for use.
The alarm conditions that are monitored and reported are;
Internal 12 Vdc supply within tolerance
Internal 9 Vdc supply within tolerance
amplifier 1 status
amplifier 2 status
FIRE_TOWER, RX3852-3408-31 VO.1,SERIAL No.14
_
NOV
_
2008
12
V 9V
AMP-1 AMP-2
OK
OK
OK
OK
USB Gain
=
0
dB
Switch Gain =
17
dB
Gain Control =
Switches
Current Gain =
17
dB
