IP403 + E1: Clocking issues

[yriou]

Hi all,

I am having a clocking issue resulting in drops call on a IP403 with 1XE1 PRI connected to RadMux TDM box + 1X4ports BRI connect to 4X PSTN lines.

All was fine up until recently when i started getting this on the monitor:

15209mS ISDNL1Evt: v=1 peb=1,F2 F1
15210mS ISDNL1Evt: v=1 peb=1,F3 F2
15210mS ISDNL1Evt: v=1 peb=1,F4 F3
15211mS ISDNL1Evt: v=1 peb=1,F1 F4
15213mS PRN: Clock 1: excursion 3
15511mS PRN: Slot A, Falc 1: LOCK RAI crc=0 set=1 FMR1=00 FMR2=02

No settings were changed on the Radmux or IPO 403, i swap the E1 PRI card without any changes also. Clock on E1 is set to 'network'

Any ideas?

 

[jamie77]

Are the BRI lines set to fallback unsuitable??

I would always have the main clock source in Slot B of a 403 and any other lines in slot A.

Jamie Green

ACA:Implement - IP Office
ACS:Implement - IP Office

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