Telenetics manual MIU9.6FPD Installation, Operation & Diagnostics April 25

(c)REMOTE DIGITAL LOOPBACK – 4/Wire Network (Figure 5) Configure both the local and remote modems as follows:

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 Turn Off = ON)

Connect TxD to RxD at the remote modem.

Transmit a test message from the local modem and confirm that the same message is received back at RxD on the local modem with no data errors.

MIU9.6FPD Installation, Operation & Diagnostics April 25, 1998 Page 15