Option Switch Settings
Synchronous 2224A Modem Option
Settings
When the synchronous 2224A modem is used with a modular trunk data module, set the options on the modular trunk data module as shown in Table
■Interface speed indication—
■Interface speed selection—
■Analog (AL) and Test Mode interface assignments—
■Interface control remote digital loopback— IN
■1200/2400 bps operation— SYNC
■Transmitter timing— EXT
Table
Module (MTDM) Used with Synchronous 2224A
Modem
Switch | Setting | |
|
|
|
1200 baud | ON | |
|
|
|
2400 baud | ON | |
|
|
|
SW | ON | |
|
|
|
SIGLS | ON | |
|
|
|
CI12 | ON | |
|
|
|
TM25 | ON | |
|
|
|
CN18 | ON | |
|
|
|
CH23 | ON | |
|
|
|
RL21 | ON | |
|
|
|
SYNC | ON | |
|
|
|
CH19 | ON | |
|
|
|
All Others | OFF | |
|
|
|
|
|
|
