Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
9.2.5 USING E1 TEST EQUIPMENT TO PERFORM OUT-OF-SERVICE TESTS
Use E1 test equipment to test E1 facilities on an out-of-service basis, as illustrated in Figure 9-4. For
compatibility with all carrier networks, we recommend that you use test equipment that is capable of
generating framed E1 signals.
In a carrier central office, E1 out-of-service testing generally takes place at a DSX-1 bay. At a
customer site, testing can be done using the test jacks on the CM4.
E1
CIRCUIT
LOCATION 1
LOCATION 2
IMUX 2000
VOICE
AND
DATA
CIRCUITS
E1 TEST SET
IN
OUT
DSX-1
TRANSMIT IN
JACK
RECEIVE OUT
JACK
DSX-1
PAYLOAD
LOOPBACK
LINE
LOOPBACK
MANUAL
LOOPBACK
(PATCHCORD)
Figure 9-4. Out-of-service testing of a E1 circuit
IMUX 2000E1 RFL Electronics Inc.
January 23, 2004 9-7 (973) 334-3100