GE EPM 5300, EPM 5200, EPM 5350 Modem Connected to Computer Originate Modem, Programming the Modem

CHAPTER 4: COMMUNICATION INSTALLATION

YOU MAY WANT TO USE A MODEM MANAGER RS485-RS232 CONVERTER

When speaking to most RS-485 or RS-232C based devices, the remote modem must be programmed for the communication to work. This task is often quite complicated because modems are quirky when talking to remote devices. To make this task easier, EIG has designed a Modem Manager RS-485 to RS-232C converter. This device automatically programs the modem to the proper configuration. Also, if you have poor telephone lines, modem manager acts as a line buffer, making the communication more reliable.

I. MODEM CONNECTED TO COMPUTER (ORIGINATE MODEM)

Programming the Modem

Comply with the modem’s instruction manual and follow these instructions:

RESTORE MODEM TO FACTORY SETTINGS:

•This procedure erases all previously programmed settings.

SET MODEM TO DISPLAY RESULT CODES:

•The device uses the result codes.

SET MODEM TO VERBAL RESULT CODE:

•The device uses the verbal codes.

SET MODEM TO IGNORE DTR SIGNAL:

•Necessary for the device to ensure connection with originate modem.

SET MODEM TO DISABLE FLOW CONTROL:

•Necessary to communicate with remote modem connected to device.

TELL MODEM TO WRITE THE NEW SETTINGS TO ACTIVATE PROFILE:

•Places these settings into nonvolatile memory; the settings take effect after the modem powers up.

II.MODEM CONNECTED TO THE DEVICE (REMOTE MODEM) Programming the Modem

Comply with the modem’s instruction manual and follow these instructions:

RESTORE MODEM TO FACTORY SETTINGS:

•This procedure erases all previously programmed settings.

SET MODEM TO AUTO ANSWER ON N RINGS:

•Sets the remote modem to answer the call after n rings.

SET THE MODEM TO AUTO NEGOTIATE MODE:

•Sets the remote to auto negotiate to communicate successfully with EPM 5300P and other devices in the modem.

SET MODEM TO RETURN NUMERIC RESULT CODES:

•Increases speed connection with EPM 5300P.

SET MODEM TO IGNORE DTR SIGNAL:

•Necessary for device to ensure connection with originate modem.

SET MODEM TO DISABLE FLOW CONTROL:

•Necessary to communicate with remote modem connected to EPM 5300P.

TELL THE MODEM TO WRITE THE NEW SETTINGS TO ACTIVATE PROFILE:

•Places new settings into nonvolatile memory; settings take effect after the modem powers up.

24 EPM 5000 series Advanced Power Meters GE Multilin