4
X
E1/G.703 P
LESIOCHRONOUS
M
ULTIPLEXER
O
PERATING
M
ANUAL
IOA77-1F
6
May 2007
RS-232 cable should be used to connect TM-77 multiplexer to the terminal. Table 3 specifies
the required list of cable connections.
Table 3.
PC computer (terminal) to TM-77 connecting cable specification
TM-77.1 multiplexer side
PC computer or terminal side
RJ-45 connector
Pin symbol
DSUB-9 female connector
DSUB-25 female
connector
6
Tx 2
3
5
Rx 3
2
RTS – CTS
7 – 8
4 – 5
DTR - DSR
4 – 6
6 – 20
4
SGND 5
7
9.22
7.19
4.17
2.14
10.23
8.20
5.18
3.15
P4
P3
P2
P1
4xE1 120
Ω
3
1
2
5
4
6
1 -
optical receiver output
2 -
optical receiver input
3 -
120
Ω
symmetric linear signal inputs/outputs - DSUB-25 connector
4 -
connector with a screw mounting to connect 36
÷
60V DC power supply source
5 -
connector with a screw mounting to connect 230V AC power supply source
6 -
grounding terminal
Figure 4.
View and description of device rear panel
