PCI MUX Cabling Solutions

Table 6: Migrating from the A6748A 8-port RJ45 Solution to the AD278A/AD279A
PCI MUX Solution
Sl.
No.
Scenario Description Solution 1 Solution 2
1 Replacing
an existing
A6748A 8-
port solution
with an
AD278A 8-
port
solution.
The A6748A 8-port solution
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 a
custom made
cable, use a
converter that
supports 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
A6748A 8-
port solution
with an
AD279A
64-port
solution
(DB25 port
module).
The A6748A 8-port solution
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 AD279A 64-
port solution’s port module
supports only Male DB25
RS-232 serial ports.
As a result, the existing
cables cannot be connected
to the AD279A 64-port
DB25 RS-232 serial ports.
To connect a
custom made
cable, use a
converter that
supports DB25
Female port at
the AD279A
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.
3 Replacing
an existing
A6748A 8-
port solution
with an
AD279A
64-port
solution
(RJ45 port
module).
The A6748A 8-port solution
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.
The AD279A 64 port
solution’s port module also
supports RJ45 RS-232 serial
ports. However, the pin-outs
To connect the
custom made
cable, use a
converter that
supports 10-pin
RJ45 plug at the
AD279A solution
end, and a 10-
pin RJ45 jack at
the other end.
Replace the 10-pin
RJ45 plug (signals
compatible with the
pin-out of the
A6748A MUX
solution)
of the custom made
cable with a 10-pin
RJ45 plug, whose
signals are compatible
with the pin-out of the