Figure 22 - Modular Cables For Rts/Cts Flow Control (7-Wire) - NBase-Xyplex MAXserver 1608A Getting Started

RTS/CTS Modem Connection
Communication
Server Connector
Female RJ-45
Connector
1
RING
2
DTR
3
XMT
4
XMTGND
5
RCVGND
6
RCV
7
DCD
8
Not Used

Figure 22 - Modular Cables for RTS/CTS Flow Control (7-Wire)

NBase-Xyplex 8-Wire Cabling
This cabling scheme provides XMT, RCV, DCD/DSR, DTR, RTS, CTS/RNG,
and separate transmit and receive ground wires. This cabling is provided
through RJ-45 connectors. Using this cabling scheme you can concurrently
use modem control and RTS/CTS hardware flow control, since there are
four control signals. This scheme is useful with relatively high speed
devices, complex modem control applications.
In Figures 22 and 23, one signal is referred to as CTS/RING. The CTS/RING
signal designation refers to the signal observed at pin 1 of each serial port.
Pin 1 is multiplexed to these signals. Depending on the software
configuration, you can use this pin as either CTS or RING, but not both at
the same time.
0038
Getting Started with MAXserver Access Servers
Straight Through Cable
Male RJ-45
Male RJ-45
Connector
Connector
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
Straight Through Cable
Modular Adaptor
Male DB-25
Female RJ-45
Connector
Connector
1 22
2 4
3 2
4
5 7
6 3
7 5
20
8
6
8
Adaptor Wiring - MX-320-0211
(Flow Control)
To Modem
Modem connector
Pin Signal
RING
RTS
XMT
GND
RCV
CTS
DTR
DSR
DCD
75