Use Manual
DMR repeater 24/01/2011 Versione 1.3
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∞ “MTCH”: two 8 poles RJ45 connectors (connected in parallel) give access to internal digital audio
multichannel (synchronous, TDMA, 4Mbit/s speed, serial interface with custom protocol). These
connectors are used to implement any particular system and network architectures which require the
base station to be connected to other devices equipped with the same MTCH interface.
DT0/DR0_B
RFS0_A
SCLK0_A
DR0_A DR0_B
RFS0_B
DT0/DR0_A
SCLK0_B
1
3
5
7
2
4
6
8
11
12
J2
RJ45
∞ Analog inputs: a 4 poles connector with 2 not isolated analog inputs, one for current (dc, from 0 to
20mA) and one for voltage (dc, from 0 to 20V referred to GND). Current inputs of different
equipments ca be connected in series; voltage inputs of different equipment can be connected in
parallel.
AN_I_IN-
1
3
2
4
P5
MCV 0,5/ 4-G-2,5
AN_V_IN
AN_I_IN_+
∞ AF line interface: a 8 poles connector to connect the base station to a telephone or console line (both
2 or 4 wire lines, also with E and M criteria) to monitor analog traffic only or for synchronization aim.
Starting from the top, the pinout is as following: output line (use this contacts in case of 2 wire line –
bidirectional -), squelch input contact (optically isolated, normally open), PTT output contact (optically
isolated, normally open, internally polarized with +/-12V), input line(only for 4 wire line).
COM_SQ_OUT_0
1
3
5
7
2
4
6
8
P9
MCV 0,5/ 8-G-2,5
COM_OPTO
BF0-IN-B
BF0-OUT-B
BF0-IN-A
BF0-OUT-A
SQ_OUT_0
PTT_IN_0
∞ Digital I/O: a 8 poles connector with 4 optically isolated digital contacts, 2 outputs (in the upper part,
normally open) and 2 inputs (in the lower part, normally closed). Input contacts are internally
polarized with +/-12V.
COM_1_OUT
COM_2_OUT
1_OUT
2_OUT
1_IN
2_IN
1
3
5
7
2
4
6
8
P10
MCV 0,5/ 8-G-2,5
COM_OPTO
COM_OPTO
∞ Alarm outputs: a 4 poles connector with 2 optically isolated digital contacts (normally open). Alarm 2
output will be closed if the base station undergoes a temporary out of service or if a slight problem
happens (warning); alarm 1 output will be closed during power on of the station or if a heavy problem
happens (stable out of service).
1
3
2
4
P13
MCV 0,5/ 4-G-2,5
COM_ALR_1_OUT
COM_ALR_2_OUT
ALR_1_OUT
ALR_2_OUT