Test 3: Received Signal Level
Set Dip Switch 1 OFF (TxA =
OFF (RxA =
CD will be ON.
Run a test message at TxD and verify that the same message is received at RxD with no data errors.
Test 4: Repeat Test 3 for various RTS/CTS delay times and with soft carrier ON and OFF.
(b)LOCAL DIGITAL LOOPBACK – 4/Wire Network (Figure 4) On the modem under test, connect TxD to RxD
Switch 1 = ON (TxA = 0dBm) Switch 3 = ON (RxA =
Switch 8 = ON (Line Termination = 600 ohms) Switch 9 = ON (Soft Carrier = ON)
Transmit a test message from a remote modem and confirm that the same message is received back at RxD on the remote modem with no data errors.
MIU9.6FPD Installation, Operation & Diagnostics | April 25, 1998 | Page 14 |