CMX 240 Series Installation Guide
17
Connecting the Terminal Screen
Connect the terminal or computer (running a terminal emulation pack-
age such as CROSSTALK) to the CMX 240 series controller as follows:
1. Set up the terminal or computer on a table within cable’s length of
the controller.
2. Open the front of your controller cabinet.
3. Either purchase a cable with pinouts matching those in the appendix
or make one. Use that cable in the next step.
4. Plug one end of the cable into the RS-232 port labeled COMM2 on
the CMX 240.
5. String the cable through the cable hole on the left side of the
controller.
6. Plug the other end of the cable into the terminal port.
Connecting to the Infinity Modem
If you are adding an Infinity modem, you must install the Infinity
modem before you connect it to the controller. Refer to the Infinity
Modem Installation Guide for instructions. After installing the Infinity
modem connect it to the CMX 240 using the directions below.
If you ordered the CMX 240 controller with a modem it will already be
installed. Follow the directions below to connect the Infinity modem to
the CMX 240:
1. Find the pins and plastic jumper labeled
P1
on the upper left of the
Infinity modem.
Caution
You must be absolutely certain
P1
is jumpered correctly or you may
blow the F1 (2A picofuse) on the modem. If you have any questions
contact your Andover Controls representative.
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