Remote All T1/E1; Remote Loopback; Reset All Tests - ADTRAN MX2820 System Manual

MX2820 System Manual

Remote Loopback

A DS3 Remote Loopback test performs a loopback on the far-end M13 multiplexer. This
loopback is only available when the DS3 signal is configured for C-bit parity framing since it
requires the availability of the FEAC channel.
Local timing must be selected before initiating this loopback. It can
be returned, if needed, after the loopback test is cancelled.

Remote All T1/E1

A DS3 Remote All T1/E1 loopback test performs a loopback of all T1/E1 channels on the far-
end M13 multiplexer. If an M13 MUX is located at the far end, an Analog Loopback is
executed on all active channels simultaneously. The form of the loopback code sent to the far-
end depends on the framing mode being used. When in C-bit parity mode, the M13 MUX
sends loopback commands over the FEAC channel. When operating in M13 framing mode, the
M13 MUX sends C-bit loopbacks at the DS2 level.

RESET ALL TESTS

To reset all M13 MUX loopback tests, select option 37,
Loopbacks Menu screen, and press
5-94
NOTE
R
E .
NTER
, from the MX2820
ALL
ESET TESTS
61186003L1-1D