Chapter 2: Installation

September 25, 2006

Step

 

Action

1

Connect the shelf modem to the PC and verify that it is in working condition as described in the preceding

 

section, “Management Station External Modem.”

 

 

2

Use a communications program to send the following initialization string to the modem:

 

AT&F

 

 

This string resets the modem to its original factory configuration and clears any previous programming

 

that can conflict with the communication between the modem and the EMU.

 

 

3

Send the following configuration string to the modem:

 

ATE0Q1S0=1&K0Y0&W0

 

 

This string configures the modem to operate properly with the EMU. The commands in this configuration

 

string are as follows:

 

 

AT

The command prefix indicating an AT command

 

E0

Do not echo input characters

 

Q1

Do not return result codes

 

S0=1

Answer the phone after the first ring

 

&K0

Disable flow control

 

Y0

Use profile 0 as the power-up configuration

 

&W0

Store current configuration as profile 0

 

Note: The shelf modem does not respond with an "OK" when you enter the above string. This

 

string disables all response codes and echo capability in the modem. The response codes

 

are not used by the EMU.

 

When the modem is properly configured, the Auto Answer (AA) lamp on the modem panel

 

lights, indicating that the modem is waiting for the phone to ring to answer an incoming call

 

from the management station PC.

 

 

 

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LTPE-UM-3159-02

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ADC EMU-830 user manual At&F