User's Manual

DMR repeater 18/02/2011 Versione 1.3
Documento Riservato - non divulgabile senza autorizzazione
Pag. 20 / 32
Side tone reflection < - 20 dB
Output nominal level -20 .. 0 dBm
Input nominal level -20 .. 0 dBm
Hang line current 10..50 mA
Level adjust software by 0.1dB step
Ring detect 60..120 Vpp @25Hz
Ring generator (option) 90Vpp @25Hz
Release tone detection 3 pulses of 425Hz @50% duty 250ms/250ms
5
EQUIPMENT INSTALLATION AND MAINTENANCE
5
5
.
.
1
1
C
C
O
O
N
N
N
N
E
E
C
C
T
T
I
I
O
O
N
N
S
S
A
A
N
N
D
D
P
P
I
I
N
N
O
O
U
U
T
T
S
S
RA-XXX base-stations require a reduced set of connections for normal working conditions (power supply, with
optional “power good” and “inhibit” controls, antennas, eventual ethernet link for remote control or for multi-
site link). The transceiver is equipped with other sockets in order to connect it to auxiliary equipment, like
other transceivers, multi-receivers, audio interfaces, remote site control devices, fan cooler, and so on.
On the front side of the equipment there are only the 10BT/100TX ethernet connector for the remote control
of the equipment and for data/audio packets communication, the power on/off switch and the LEDs for
monitoring the status of the equipment. All other connectors are placed on the back side of the transceiver.
The following picture shows the fundamental connections in red color and the optional ones in blue color.