Model MAC-32-OD
Page 7
TO BE WELL CONNECTED IS VERY IMPORTANT !!!
When connecting equipment to the MAC-32-OD, it is imperative that the correct connector pin-outs and
cable type are used.
1> For the RS-485 six position RJ-11 jack,
DO NOT
use a standard telephone type cable that reverses
the connections between ends. Use only a DATA type cord that maintains the same pin positions at
each end to preserve the correct polarity required between connected equipment.
2> For the RS-232 eight position RJ-45 jack, USE ONLY a data type cable and observe the pin
positions as shown below for this type of jack. The relationship between the RJ-45 jack and a standard
RS-232 connector pin out for MAC-32-OD is shown on page 6 of this manual.
3> Under NO circumstance ever insert or use an RJ-11 plug in an RJ-45 socket. The pins in the socket
will be deformed, leading to poor connections.
RS-232
RS-485
COM 1
1 2 3 4 5 6
RJ-11
1 2 3 4 5 6
RJ-45
7 8
1
6
6
1
Standard Modular telephone Cable, Note Reversal!
1
6
1
6
Modular Data Cable. Pin to Pin
