User's Manual

RHOTHETA User Manual RT-800
Page 64 of 78
8.5 Service & Maintenance Ports
8.5.1 Power Supply and Optional Connections
Contact
/ Pin Signal
15
+12 V to +30 VDC
ATTENTION:
No connections required (internally connected)!
8
GND (Ground)
7
Permanent
Operation
ATTENTION:
No connections required (internally connected)!
14 PTT / SBS
Optional input in order to suppress self bearing. When connecting input
PTT/SBS (Self Bearing Suppression) to Ground, self bearing is
suppressed
6 GND
12 Squelch Out
Optional output for audio connection. When receiving a signal this pin is
connected to ground by the means of an Open Collector output.
4 GND
1
Alarm Relay
Optional alarm contact (mechanical relay as NOC, Normal Open Contact)
max. 1 A at 30 V
DC
resp. max. 0.3 A at 125 V
AC
9
3 Speaker +
ATTENTION:
No Connection required, because this ports are
connected to the internal speaker!
11 Speaker -
13 Audio Line Out
ATTENTION:
Connection not recommended, because this port is
connected to the IP Audio Encoder!
Audio output (connected to ground with fixed level)
Adjustable in menu, from 200 mV
SS
at 10% to max. 2 V
SS
at 99%
5 GND