PCI MUX Cabling Solutions

Sl.
No.
Scenario Description Solution 1 Solution 2
of the A6748A RJ45 serial
ports and AD279A RJ45
serial ports are different.
As a result, the existing
cables cannot be used with
the AD279A 64-port RS-
232 RJ45 serial ports.
While designing
the converter,
ensure that you
follow the
specifications
listed in Table
10.
AD279A PCI MUX
solution.
To replace the 10-pin
RJ45 plugs, detach
wires from the 10-pin
RJ45 plug in sequential
order, as described in
Table 10, and connect
the wires to the new
RJ45 plug.
Table 7 lists scenarios of incompatibility that prevent successful migration from A6749A 64-port RJ45
solution to the AD278A/AD279A PCI MUX solution. It also describes methods to resolve issues of
incompatibility.
Table 7: Migrating from the A6749A 64-Port RJ45 Solution to the AD278A/AD279A
PCI MUX Solution
Sl.
No.
Scenario Description Solution 1 Solution 2
1 Replacing
an existing
A6749A
64- port
solution
(RJ45 port
module)
with an
AD278A 8-
port
solution.
The A6749A 64 port
solution’s port module
supports RJ45 RS-232 serial
ports.
The custom made cables for
this solution include RJ45
plugs, to connect to the
RJ45 RS-232 serial ports.
However, the AD278A 8-
port solution supports only
Male DB25 RS-232 serial
ports.
As a result, the existing
cables cannot be connected
to the AD278A 8-port DB25
RS-232 serial ports.
To connect to a
custom made
cable, use a
converter that
supports a DB25
Female port at
the AD278A
solution end, and
a 10-pin RJ45
jack at the other
end.
While designing
the converter,
ensure that you
follow the
specifications
listed in Table 9.
Replace the RJ45 plug
of the custom made
cable with a DB25
Female connector.
To replace the RJ45
plugs with a DB25
Female connector,
detach wires from the
RJ45 plug in sequential
order as described in
Table 9, and connect
the wires to a DB25
female connector.
2 Replacing
an existing
A6749A
64-port
solution
(RJ45 port
module)
with an
AD279A
64-port
The A6749A 64-port
solution’s port module
supports RJ45 RS-232 serial
ports.
The custom made cables for
this solution includes RJ45
plugs, to connect to the
RS232 RJ45 serial ports.
However, the AD279A 64-
port solution’s port module
To connect to a
custom made
cable, use a
converter that
supports a DB25
Female port at
the AD279A
solution end, and
a 10-pin RJ45
jack at the other
Replace the RJ45 plug
of the custom made
cable with a DB25
Female connector.
To replace RJ45 plugs
with DB25 Female
connector, detach
wires from the RJ45
plug in sequential