Kirisun TR850 - Page 31

TR850 Service Manual
11 ACC_MAP_ID_1
Accessory ID input Line 1
Control signal, when
connected with Pin20, the
IP address will be set to
the default address:
192.168.1.100.
Digital Input:
(2.5V<VIH<5V,0V<VIL<0.4V)
12
Squelch
(Program_IO_6)
Digital Input. High level
will enable opening
squelch when connected
with Pin20.
Digital Input
(2.5V<VIH<5V,0V<VIL<0.4V)
13 RXD
Output.
Receive signal from
repeater to PC
RS232 Level:
-3V ~ -15V
+3V ~ +15V
14 TXD
Input.
Transmit signal from PC
to repeater
RS232 Level:
-3V ~ -15V
+3V ~ +15V
15 GND Ground -
16 Rx_Audio NULL -
17 Audio_Ground Ground -
18 Tx_Audio
External Audio signal
input
Analog input:0V<VIL<0.5V
19 GND Ground -
20 Program_IO_7
Output high level, used
with Pin7 (PTT function),
Pin10 (analog Rx
function) and Pin11 (IP
address reset function)
and pin23(open squelch)
Digital Output
2.5V<VOH<3.3V
21
Program_IO_4
(Emergency)
NULL -
22 Program_IO_8 NULL -
27