SA
-FOM4 Installation Description
SA
-FOM4-2.0-20030102
3.2 Near End (NE) Local Loopback (NELLB)
This loopback mode tests the MUX/DEMUX function of
local
SA
-FOM4. If the transmission quality is as expected,
the electrical session of
SA
-FOM4 is not the cause of
transmission problem. This function is available on CID
Consol controlled model only.
NEAR END
FAR END
4*E1
(EIO)
OPTICAL
(OPT)
4*E1
(EIO)
OPTICAL
(OPT)
NEAR END LOCAL
LOOPBACK
(NELLB)
Figure 5 Near End Local Loopback Diagram
3.3 E1 Remote Loopback (E1RLB)
E1 Remote Loopback function sets remote system to
perform E1 loopback. The signal path is shown as the
following figure.
If the transmission quality is OK after E1RLB is set, the
remote E1 connection or EIO card is the major cause of the
transmission problem.
- 5 -
Содержание SA-FOM4
Страница 2: ......
