Telenetics 202T, MIU202T manual Test 3 Received Signal Level

Test 3: Received Signal Level

Set Dip Switch 1 OFF (TxA = -10dBm) and Dip Switch 3 OFF (RxA = -43dBm).

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 = -33dBm) Switch 4 = OFF (RTS/CTS = 35ms) Switch 5 = ON (RTS/CTS = 35ms) Switch 6 = ON (Constant Carrier mode). Switch 7 = OFF (4-Wire)

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.

MIU202T Installation, Operation & Diagnostics Edition: April 4, 1998 Page 18