Westermo TD-34 - Manual (Page 56)

56 6610-2203
10. Dialback applications 1
TD-34 #1
2-wire leased line
#1 #4
TD-34 #2
PSTN
Equipment:
2 pcs TD-34, 2-wire leased line, PSTN simulator, PC with terminal program, power supplies.
Switch settings:
TD-34 #1 TD-34 #2
SW1 2, 3, 5, 6 ON 2, 3, 5, 6 ON
SW2 All OFF All OFF
SW3 5 ON 5, 7 ON
SW4 3, 5, (8) ON 3, 4, (8) ON
AT commands: AT*WDB, AT*WSYNC
Application:
Step 1:
Configuration
Set switches on TD-34 #1 and #2
Set switch SW3:5 OFF on TD-34 #1 and #2
Power ON TD-34 #1 and #2
AT*WDB=4,1,1 on TD-34 #1
AT*WDB=,2,0 on TD-34 #2
Power OFF TD-34 #1 and #2
Set switch SW3:5 ON on TD-34 #1 and #2
Step 2: Dialback
Power ON TD-34 #1 and #2
Wait for DCD on TD-34 #1 and #2
Remove 2-wire leased line on TD-34 #2
Wait for PSTN connection
Insert 2-wire leased line on TD-34 #2
Wait for 2-wire leased line connection