5
X
RS-232,485 + 2
X
E
THERNET
/2 M
BIT
/
S
G.703 (G.704) M
ULTIPLEXER
O
PERATING
M
ANUAL
IOA81-1E
6
August 2004
2.3 Connectors’
data
Pin No.
Pin Description
1,6
Transmission of Data – output
5,9
Reception of Data – input
7
Transmitted data – shield
1
6
5
9
8
7
8
Received data – shield
Fig. 5.
View and description of balanced E1/G.703 120
Ω
contact connector
Pin No.
Pin Description
1 DCD
2
RD (Transmitted Data)
3
TD (Received Data)
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
1
6
5
9
9 Not
connected
Fig. 6.
View and description of asynchronous RS-232 DCE interface connector
Pin No.
Pin Description
1 Not
connected
2
TD+ (Transmitted data)
3
RD+ (Received data)
4 Not
connected
5 Not
connected
6
TD- (Transmitted data)
7 Not
connected
8
RD- (Received data)
1
6
5
9
9 Not
connected
Fig. 7.
View and description of asynchronous RS-485 interface connector
Pin No.
Pin Description
1
TD+( Received data)
2
TD- (Received data)
3 RD+(Transmitted
data)
1
8
6
RD- (Transmitted data)
Fig. 8.
View and description of Ethernet - MDI-X interface connector