View And Description Of Device Rear Panel - Lanex TM-77 Operating Manual

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
RJ-45 connector
6
5
4
P4
9.22 7.19
10.23 8.20
4xE1 120Ω
3
1 - optical receiver output
2 - optical receiver input
3 -
120Ω 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
IOA77-1F
4 E1/G.703 P
X LESIOCHRONOUS
O
PERATING
Pin symbol
Tx
Rx
RTS – CTS
DTR - DSR
SGND
P3 P2 P1
4.17 2.14
5.18 3.15
1
2
M
ULTIPLEXER
M
ANUAL
PC computer or terminal side
DSUB-9 female connector
2
3
7 – 8
4 – 6
5
5
6
DSUB-25 female
connector
3
2
4 – 5
6 – 20
7
6
4
May 2007