E1/G.703 F
IBER
O
PTIC
M
ODEM
O
PERATING
M
ANUAL
IOA76-1F
6
May 2009
Table 2.
Description of RS-232 / V.28 DCE connector outputs (RJ-45 type)
Pin
Description
4 SGND
6 Tx
OUT
5 Rx IN
RS-232 cable should be used to connect TM-76 multiplexer to a terminal. Table 3 specifies
the required list of cable connections.
Table 3.
PC computer (terminal) to TM-76 device connecting cable specification
TM-76.1 modem 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
1 -
optical receiver output
2 -
optical receiver input
3 -
120 ohm symmetric linear signal input/output
Ω
- DB-9 connector
4 -
connector with a screw mounting to connect 18
÷
60V DC power supply source
5 -
grounding terminal
Figure 4.
View and description of device rear panel
36 60 VDC
_..
5
2
9
7
18
Summary of Contents for MD-76
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