NEC NEAX 2400 ICS User Manual

CHAPTER 2 ND-45383 (E)
Page 26
Revision CD 1.0
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.
Figure 2-15 Remote Loop-Back Check
DLI
NEAX2400 IMS
DRU
DRU is Remote Loop Back status.
DLI
NEAX2400 IMS
DRU
DLI is Remote Loop Back status.
• When Remote Loop-Back Check is performed from the DLI
• When Remote Loop-Back Check is performed from the DRU

NEC NEAX 2400 ICS Specifications

General

Brand	NEC
Model	NEAX 2400 ICS
Category	Telephone
Language	English