Figure 2-15 Remote Loop-Back Check - NEC NEAX 2400 ICS Manual

5.2 Remote Loop-Back Check
This test checks to see if the test signal sent out (using the control signal link) to the remote office can be
received as it has been sent out, thus verifying the normality of the line (the transmission line between the
DLI and the DRU).
When this test is performed, the remote office must be in the Remote Loop-Back status.
When this test is performed from the DLI, setting/canceling of Remote Loop-Back can be made from the
DLI to the DRU. Thus, this test can be controlled only at the DLI side.
• When Remote Loop-Back Check is performed from the DLI
NEAX2400 IMS
• When Remote Loop-Back Check is performed from the DRU
NEAX2400 IMS
CHAPTER 2
Page 26
Revision CD 1.0
DLI
DLI
DLI is Remote Loop Back status.

Figure 2-15 Remote Loop-Back Check

ND-45383 (E)
DRU
DRU is Remote Loop Back status.
DRU