LG GLOFA-GM Series User Manual page 60

Chapter 4 Performance specification
How to connect the modem with this module
4.4.2.2
Dial-up modem and Cnet I/F module are connected with 9-pin cable via RS-232C channel as wired as below.
Cnet (9-PIN)
Pin No. Name
1
2
3
4
5
6
7
8
9
Remark
[Note1] Dial-up modem if purchased is usually provided with DTE connection cable built-in as an accessory,
however this cable for connection between PC and modem can be connected to Cnet I/F module. Since
most external modems are provided with DTE connection cable to connect to PC along with 9-pin female
connector on DTE as reversed in connection, the built-in cable is not allowed to use. The connection cable
is to be manufactured separately according to the wiring above.
4.4.2.3 Initial setting of module
Follow the sequence below via Cnet I/F module after modem is selected and connection cable is wired, to initialize
dial-up modem and set to connection stand-by mode.
1) Operation mode setting : Set mode switch value of module correctly to desired position. Operation mode can be
set only in the range shown in [Table4.3] (Modem connection is unavailable in interlocking mode)
Connection No. and Signal direction
CD
RXD
TXD
DTR
SG
DSR
RTS
CTS
RI
[Note1]
4-28
Mode side (25-PIN)
Name Pin No.
CD 8
RXD 3
TXD 2
DTR 20
SG 7
DSR 6
RTS 4
CTS 5
RI 22