Figure 20 - Modular Cables For Connecting A Modem (6-Wire) - NBase-Xyplex MAXserver 1608A Getting Started

Communication
Server Connector
Female RJ-12
Connector
1
DTR
XMT 2
DCD 3
RCV 4
5
GND
6
RING

Figure 20 - Modular Cables for Connecting a Modem (6-Wire)

When using this cabling scheme, serial ports observe the DCD modem
control signal rather than the DSR modem control signal for modem control,
as well as DSRLOGOUT, SIGNAL CHECK, and hardware flow control
applications.
NBase-Xyplex 7-Wire Cabling
This cabling scheme provides XMT, RCV, DCD/DSR, DTR, RING, and
separate transmit and receive ground wires. This cabling is provided
through RJ-45 connectors (pin 8 of the connector is not used). Using this
cabling scheme you can use either modem control or hardware flow control,
but not both, since there are only 3 control signals.
This scheme is useful with the following applications:
·
Terminal emulation and file transfer applications, such as Kermit,
Xmodem, Microphone, etc.
0038
Getting Started with MAXserver Access Servers
Straight Through Cable
Male RJ-12
Male RJ-12
Connector
Connector
1
2
3
4
5
6
Straight Through Cable
Modular Adaptor
Female RJ-12
Connector
1 1
2
2
3
3
4
4
5 5
6 6
Adaptor Wiring - MX-350-0157
(Female RJ-12 to male DB-25)
To Modem
Male DB-25 Modem connector
Connector Pin Signal
20 •DTR
2 XMT
8 DCD
3 RCV
7 GND
22 RING
4 RTS
5 CTS
73