Communications Installation - Connecting the HC900 Controller to a PC with the Hybrid Control Designer Software
Revision 5 HC900 Hybrid Controller Installation and User Guide 97
9/03
Zoom 56K Dualmode External Modem
Step Action
1
Connect the modem to a PC. If your PC’s RS-232 port has a 25-pin connector, use a DB-25
male to DB-25 female RS-232 cable. If your PC’s RS232 port has a 9-pin connector, use a
DB-25 male to DB-9 female modem cable.
2 Connect power to the modem.
3 Power up the modem.
4 Run a serial communication port program such as Hyperterminal.
5 Within the communication program, select the port to which the modem is connected.
6 Configure the port to these settings:
baud rate = 9600, 19200, or 38400, 57600 (Must match Baud Rate configured in HC900
Controller)
data bits = 8
parity = none
stop bits = 1
flow control = none
7
In the program's terminal window, restore factory defaults by keying-in the following command
string:
AT &F0
Then, press the ENTER key.
8 In the program’s terminal window, key-in the following command string:
AT E1 Q0
Then, press the ENTER key. The Modem should respond with OK.
9 Key-in the following command string:
AT &Y0 &C0 &D0 &R1 &S0 &K0 S0=1
Then, press the ENTER key. The Modem should respond with
OK.
10
Key-in the following command string:
AT E0 Q1 &W0
Then, press the ENTER key. The Modem will not respond.
11
Power down the modem and disconnect it from the PC.
12
Connect the modem to the RS-232 port of the HC900 Controller using a DB-25 male to DB-9
male RS-232 cable.
13 Connect the modem to a telephone jack.
14 Power up the modem and the HC900 Controller.
15 On a remote computer, run Hybrid Control Designer software.
16 Set up the PC software to dial the HC900 Controller.
17
Use the PC software "Loop-back" feature to verify that communications are established with
the remote HC900 Controller.
