Sangoma Netborder SS7, Руководство пользователя, Страница: 194 / 317

v1.14
194
36 -> -44. It is typical to have this alarm triggers in combination with 'Open
Circuit' if there is an issue with the physical connection
YEL
When the equipment enters a Red-Alarm state, it returns a Yellow-Alarm
back up the line of the received OOF.
A typical scenario would be mis-configuration during the Sangoma card
configuration (i.e selected CRC4 vs NCRC4). In this type of scenario also
LOF and RED alarms will be triggered.
Line Code
Violation
This occurs upon a bipolar violation
Far End
Block
Errors
is reported by the upstream end of the PHY (the wire between you and the
switch) on the out-of-band management channel.
This means the other end of the line received bad data from you. Possible
reason are: line noise, corroded wires..etc.
Also, check line Framing (E1: CRC4 vs NCRC4)
CRC4
Errors This occurs when the CRC polynomial calculation performed before
transmission does not match the CRC calculation done upon reception.
FAS Errors
(Frame alignment signal error). One or more incorrect bits in the alignment
word
Check Clock Note that NSG will not come out of Alarm state if there is NO clock on the T1/E1 line.
If NSG configured for
NORMAL (slave) clock

Re configure to MASTER clock

If E1 comes UP

Then there is NO clock on the line !!!

Contact the Telco