KMC Controls
Revision J
Installing the controllers
Connecting to a modem
22
Connecting to a
modem
By adding an optional modem to the controller, an off-site computer can access
the controller through a dial-up connection. The modem connection also supports
dial-in and the Control Basic functions
TPAGE
and
NPAGE
. If the modem
function is enabled, the serial port is not available for direct connection with a
computer.
Detail
KMC Controls recommends using U.S. Robotics modems for off-site
communications. KMC does not offer support for other modem installations.
To install a modem:
1. Use HCM to configure the controller for the modem function. See
for setup details.
2. Connect a KMD-5674 computer-to-modem cable between the KMD-5569
modem and the nine-pin modem connector on the controller.
3. Connect the modem to a telephone line dedicated to the network system.
4. Verify the configuration switches on the back of the modem are in the
following positions.
Detail
Use only the KMD-5674 cable between the controller and the modem. A
standard modem cable will not work.
Table 2-2 Modem configuration switches
1
2
3
4
5
6
7
8
Up
Up
Down
Down
Up
Up
Up
Down
Illustration 2-8 Modem connection to KMD-5205 and KMD-5270
O-R
STATUS
H O A
O-R
STATUS
H O A
O-R
STATUS
H O A
O-R
STATUS
H O A
1
2
3
4
O-R
STATUS
H O A
O-R
STATUS
H O A
O-R
STATUS
H O A
O-R
STATUS
H O A
5
6
7
8
PWR
S-LAN
PC
COLL
Rx
Tx
KMD–5674 cable