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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Compact Modular Cabinets
555-230-128
Issue 3
May 1998
Install and Cable the Cabinets
Page 1-98Connect Modem to Telephone Network
1
External Modem Option Settings
The U.S. Robotics Model 839 external modem is the recommended external
modem for Release 6 CMC. A locally obtained, type-approved external modem
may be used. Contact your Lucent Technologies representative for information.
1. If a non-U.S Robotics Model 839 modem is installed, refer to the setup
instructions provided with that modem. Refer to Table 1-20
while setting
up the modem. Go to Step 4 to complete the modem administration.
2. If no modem is installed, skipt to step 5. If a U.S Robotics Model 839
modem is installed, perform the following.
3. Use Table 1-19
to set the 8 option switches on the U.S. Robotics modem.
4. At the management terminal, enter change system-parameters
maintenance and press
Enter. Scroll to page 3 of the form.
5. Set the Modem Connection: field to external if a modem is installed.
Set the field to none if no modem is installed. This field must be
administered or alarms will be generated.
NOTE:
The Modem Connection: field cannot be set to none if Alarm
Origination is activated.
6. Set the Data Bits: field to 8 (default).
7. Set the Parity: field to none (default).
Table 1-19. U.S. Robotics Model 839 External Modem Switch Settings
Switch Setting Function
1 OFF (Up) DTR (Data Terminal Ready) override
2 OFF (Up) Verbal result codes (text-formatted feedback characters such as
connected
or
no carrier
)
3 ON (Down) Enable result codes
4 OFF (Up) Displays keyboard commands (local echo)
5 OFF (Up) Sets auto answer. Verify that the Auto Answer Ring Count (rings):
on the maintenance-related system parameters form is S0=10.
6 OFF (Up) CD (Carrier Detect) override (modem sends CD signal on connect, drops
CD on disconnect)
7 OFF (Up) Power-on and ATZ reset software defaults (loads Y or Y1 configuration from
NVRAM)
8 ON (Down) AT (Attention) command set recognition (enables recognition, smart mode)