Sl.

Scenario

Description

Solution 1

Solution 2

No.

 

 

 

 

 

solution

supports only Male DB25

end.

order as described in

 

(DB25 port

RS-232 serial ports.

 

Table 9, and connect

 

module).

As a result, the existing

While designing

the wires to a DB25

 

 

cables cannot be connected

the converter,

Female connector.

 

 

to the AD279A 64 port

ensure that you

 

 

 

DB25 RS-232 serial ports.

follow the

 

 

 

 

specifications

 

 

 

 

listed in Table 9.

 

 

 

 

 

 

3

Replacing

The A6749A 64- port

To connect the

Replace the 10-pin

 

an existing

solution’s port module

custom made

RJ45 plug (signals

 

A6749A

supports RJ45 RS-232 serial

cable, use a

compatible with the

 

64- port

ports.

converter that

pin-out of the

 

solution

The custom made cables for

supports a 10-pin

A6749A PCI MUX

 

(RJ45 port

this solution include RJ45

RJ45 plug at the

solution)

 

module)

plugs to connect to the RJ45

AD279A solution

of the custom made

 

with an

RS-232 serial ports. The

end, and a 10-

cable with a 10-pin

 

AD279A

AD279A 64 port solution’s

pin RJ45 jack at

RJ45 plug, whose

 

64-port

port module also supports

the other end.

signals are compatible

 

solution

RJ45 RS-232 serial ports.

 

with the pin-out of the

 

(RJ45 port

However, the pin-outs of the

While designing

AD279A MUX

 

module).

A6749A RJ45 serial ports

the converter,

solution.

 

 

and AD279A RJ45 RS-232

ensure that you

 

 

 

serial ports are different.

follow the

To replace the 10-pin

 

 

As a result, the existing

specifications

RJ45 plugs, detach

 

 

cables cannot be used with

listed in Table

wires from the 10-pin

 

 

the AD279A 64-port RJ45

10.

RJ45 plug in sequential

 

 

RS-232 serial ports.

 

order, as described in

 

 

 

 

Table 10, and connect

 

 

 

 

the wires to the new

 

 

 

 

RJ45 plug.

 

 

 

 

 

Table 8 lists scenarios of incompatibility that prevent successful migration from A6749A 64-port DB25 solution to the AD278A/AD279A PCI MUX solution. It also describes methods to resolve issues of incompatibility.

Table 8: Migrating from the A6749A 64-Port DB25 Solution to the AD278A/AD279A PCI MUX Solution

Sl.

Scenario

Description

Solution 1

Solution 2

No.

 

 

 

 

1

Replacing

The A6749A 64-port

Use a DB25 Male

 

 

an existing

solution’s port module

to Female gender

 

 

A6749A

supports Female DB25 RS-

changer to connect

 

 

64- port

232 serial ports.

the custom made

 

 

solution

The custom made cables

cables to AD279A

 

 

(DB25 port

for this solution include

RS-232 DB25

 

 

module)

Male DB25 RS-232

serial ports.

 

 

with an

connectors, to connect to

 

 

 

AD279A

the A6749A DB25 RS-232

 

 

 

64- port

serial ports. However, the