Table 5-4. Remote System (Terminal) Conditions; Rx Framing; Remote - ADTRAN MX2820 System Manual

MX2820 System Manual

Rx Framing

This field shows the network framing type (C-Bit or M13).

Remote

This field indicates the current state of the remote MX2820 system or terminal equipment
(available with C-Bit framing only).

Table 5-4. Remote System (Terminal) Conditions

Condition
Normal
RAI
LOS
AIS
LOF
Idle
DS3 Eqpt Fail (SA)
DS3 Eqpt Fail (NSA)
Common Eqpt Fail
Multiple DS1 LOS
Single DS1 LOS
DS1 Eqpt Fail (SA)
DS1 Eqpt Fail (NSA)
Unknown
5-22
Table 5-4 list the possible conditions.
Description
The far-end MX2820 system is not reporting any conditions.
The far-end unit is receiving an Remote Alarm Indication (RAI) (yel-
low) alarm from the network. This alarm is a signal sent back toward
the source of a failed transmit circuit. The X-bits (X1 and X2) are set
to zero.
The far-end unit has lost the Rx signal. Loss of Signal (LOS).
The far-end unit is receiving an Alarm Indication Signal (AIS) (blue)
alarm condition from the network. AIS alarms occur when consecu-
tive 1010s are received in the information bits. This indicates there is
a transmission fault located either at the transmitting terminal or
upstream from the transmitting terminal.
The far-end unit detects a framing loss, Loss of Frame (LOF), from the
network.
The far-end unit detects an idle sequence from the network.
The far-end unit or network is reporting a service-affecting (SA) DS3
equipment failure.
The far-end unit or network is reporting a non-service-affecting (NSA)
DS3 equipment failure.
The far-end unit or network is reporting a non-service-affecting com-
mon equipment failure.
The far-end unit is experiencing a loss of signal on multiple DS1s.
The far-end unit is experiencing a loss of signal on a single DS1.
The far-end unit is experiencing a service-affecting DS1 equipment
failure.
The far-end unit is experiencing a non-service-affecting DS1 equip-
ment failure.
The unit is unable to discern the status of the far-end unit. (Normal
state for M13 framing).
61186003L1-1D