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SX-200 ICP MX Technician’s Handbook
7. Form 42, T1 Link Descriptor
- Create a Link Descriptor for the PRI trunks using the recommended
settings in the following table:
8. Form 43, T1 Link Assignment
- Assign the ISDN trunk T1 Link Descriptor to the slot(s) specified in
Form 1.
Table 19: T1 Link Descriptor Values for PRI trunks
Descriptor Value
Alarm debounce timer (300 –3200 ms) 2500
Line Coding (AMI, AMI&ZCS, B8ZS) B8ZS
Line Build Out (0, -7.5, -15. –22.5 dB) 0 dB
Line Length (max 132, 265,398,533 or 655) 0 - 132
Framing (D4 or ESF) ESF
Slip rate – maintenance limit (0 – 9000) /24 hrs 255
Slip rate – service limit (0 – 9000) /24 hrs 7000
Slip rate – network sync limit (0 – 9000) /24 hrs 7
BER – maintenance limit ( 10**-n , n = (3,4,5,6 )) / hour 4
BER – service limit ( 10**-n , n = (3,4,5,6 )) / hour 3
Framing losses – maintenance limit (0 – 9000) /24 hrs 255
Framing losses – service limit (0 – 9000) /24 hrs 9000
RTS timer – service limit exceeded (1- 255 min) 30
RTS timer – net slip limit exceeded (1- 255 min) 30
RTS timer – after alarm (0 – 300 sec) 10
Embedded PRI Protocol DMS100
Embedded PRI Protocol Variant None
Embedded PRI Network/User User
Embedded PRI Unknown Numbering Plan Disabled
Embedded PRI Bearer Capability Voice Speech
Embedded PRI CLIR Voice Allow
Embedded PRI Invert D Channel No