jotron RA-7203C User Manual

Jotron AS| TR7750C: Operators Manual  Functional description
Page 3-11
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3.4.3 LAN connector (RJ45)
This connector contains the Ethernet bus and is normally connected to a nearby switch/hub. It can
also be connected directly to a computer, using a twisted pair Ethernet cable.
LAN interface connector
Name
PIN
Purpose
LAN_TXP
1
Tx data
LAN_TXN
2
Tx data
LAN_RXP
3
Rx data
LAN_D3P
4
Optional
LAN_D3N
5
Optional
LAN_RXN
6
Rx data
LAN_D4P
7
Optional
LAN_D4N
8
Optional
Table 3.4-1, LAN interface connector, pin out
3.4.4 AUX1 CONNECTOR (RJ45)
This connector is normally connected to equipment used for remote control / remote supervision of
the receiver.
AUX1 connector, receiver unit
Name
PIN
Purpose
ALARM_P
1
Alarm out-relay (NO)
ALARM_N
2
Alarm out-relay (NO)
Select_in_P
3
Select in, optocoupler input
RS232_S
4
RS232 Transmit data
RS232_R
5
RS232 Receive data
Select_in_N
6
Select in, optocoupler input
+12V
7
+12VDC output to external equipment (max 100mA)
GND
8
Common ground
Table 3.4-2, AUX1 connector, receiver, pin out

jotron RA-7203C Specifications

General

Brand	jotron
Model	RA-7203C
Category	Radio
Language	English