RELM Communications Inc SRU50ABC ユーザーズマニュアル
S Series Repeater USER MANUAL
©RELM Communications Inc. Revision 1.0
11
Rear Panel Connectors
CONNECTOR
DESCRIPTION
DC POWER INPUT
13.8 Volt DC power input. Also +28 Volt input on spare pin.
SIMPLEX RELAY OUT OR
N TYPE RX INPUT
N TYPE RX INPUT
Location for internal simplex relay. The antenna for RX / TX
connects to this point. Else a N-Type connector can be used for the
input to the receiver for full duplex operation.
connects to this point. Else a N-Type connector can be used for the
input to the receiver for full duplex operation.
BNC RX INPUT
Standard BNC connector for the input to the receiver for full
duplex operation.
duplex operation.
N TYPE TX OUTPUT
The RF power output from the transmitter for full duplex operation.
SPARE RJ11
Provision for internal expansion.
DB25-F PARALLEL I/O
Provides two 8 bit input ports, where one is used as the parallel
BCD channel select. Also one spare 8 bit input port.
BCD channel select. Also one spare 8 bit input port.
DB15 UNIVERSAL
ANALOG I/O
ANALOG I/O
Provides the necessary analog receiver and transmitter interface for
system expansion.
system expansion.
RS-232 SERIAL PORT
9600 Baud serial port for frequency programming, channel
selection and alarm and status monitoring.
selection and alarm and status monitoring.
SPARE DB15
Provision for internal expansion.
Rear view SR35/50
DC POWER INPUT
SIMPLEX RELAY OUT
OR N TYPE RX INPUT OR BNC RXINPUT
OR N TYPE RX INPUT OR BNC RXINPUT
N TYPE TX OUTPUT
THERMALLY CONTROLLED FAN
SPARE
RJ11
RJ11
TRANSMITTER HEATSINK
HOLE
SPARE
4 OFF SCREWS FOR
DB25-F
DB15
EASY PA MODULE
PARALLEL I/O
HOLE
REMOVAL
DB15 UNIVERSAL
RS-232
ANALOG I/O
SERIAL PORT