Black Box 34336 Manual De Usuario
118
Modem 34336
7.7 Local Modem Diagnostics
Local modem diagnostics are for testing the Modem and its adjoining system.
The tests are accessed from the main menu and are easily performed if the
Modem is attached to DTE or an external BERT.
The tests are accessed from the main menu and are easily performed if the
Modem is attached to DTE or an external BERT.
7.7.1 A
NALOG
L
OOPBACK
(ALB) T
EST
Analog loopback testing allows you to test the local modem and its associated
terminal independently from the telephone interface and the remote
modem. Figure 7-1 shows the connections automatically made during the
test.
terminal independently from the telephone interface and the remote
modem. Figure 7-1 shows the connections automatically made during the
test.
Figure 7-1. Analog Loopback Test.
LOCAL MODEM
DATA TERMINAL EQUIPMENT
(DTE) AT LOCAL SITE
TRANSMITTER
RECEIVER