Omega-vehicle-security OMP-MODL Manuel d'utilisateur télécharger pdf (Page 94)

5... HYPERCOMM™ COMMUNICATIONS

USING THE OMP-MODL 5-7

to the modem’s manual for the command set used by the modem

installed at the PC. Note that most modems (although not

necessarily manufactured by Hayes, US Robotics, or Zoom) can

utilize one of these three configurations.

Clicking on the Modem list box and selecting the desired modem will

automatically configure the various modem parameters to meet

most User’s needs.

If a modem with a command set different from the supplied three is

used, a custom Modem Type entry can be added to the Modem list

box. To enter a custom Modem Type, the Dial Prefix, Hangup

command, and Initialization strings need to be added. Refer to the

User’s manual supplied with your modem and follow these steps to

add a custom Modem Type entry:

1. Click on the Modem list box arrow and enter a new

Modem configuration name.

2. Edit the Dial Prefix text box with the command required

by your modem. Upon commencing of dialing, this

Prefix string is sent immediately before the phone

number. For most modems this will be ATDT (if touch-

tone dialing is supported by the phone line) or ATDP (for

pulse dialing on phone lines not supporting touch-tones)

3. Edit the Hangup text box for the requirements of your

modem. Nearly all modems will use ATH. The Hangup

string is transmitted to the modem when the User clicks

on the Hangup button from within the Modem

Communications dialog.

4. Edit the Initialization text box for your modem’s

requirements. A multitude of variations are possible for

this initialization string and the modem User’s manual

should be referenced carefully. The initialization string is

sent to the modem immediately after clicking on the Dial

button within the Modem Communication dialog. Key

parameters to specify in the modem initialization string

include:

Ρ Verbal Response codes ENABLED

Ρ Full Response code set ENABLED (eg Busy,

Connect 14400/ARQ, etc)

Ρ Echo DISABLED (off)

5. Clicking on the OK button saves the three strings to the

Modem Type name specified in the Modem list box.

After configuring all modem parameters, click on DIAL and the modem

connection sequence will commence. After a short dialing and

communication protocol negotiation between the modems, a dialog box will

show indicating success or failure in making the link.

If successful, click OK . Close the SERIAL COMMUNICATIONS dialog box with

another OK and HyperWare will return to the HYPERCOMM window ready for

communication.

If the link fails, check the following points:

♦ Is the PC to modem cable connected? (external

modems only)

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Omega-vehicle-security OMP-MODL Manuel d'utilisateur Page 94

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