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Performance Monitorings
Trail Termination Points Equipment
VC-12 for each DS1 and E1 port
VC-3 for each DS3, E3 and STM-0 interfaces
VC-4 for each E4 interface and on the Cross-Connect
MS-0 Multiplex Section on the STM-0 interfaces
MS-1 Multiplex Section on the STM-1 interfaces
MS-4 Multiplex Section on the STM-4 interfaces
RS-16 Regenerator Section of the 2.5 Gbps interfaces
MS-16 Multiplex Section of the 2.5 Gbps interfaces
Non-Intrusive Monitoring on VC-4, VC-3 & VC-12 trails & VC- 4- 4c
Severity setting for alarms on each TP instance
Enhancements compliant 24 hr counters Unavailable period storage
History bin: every 15 minutes (16 bins + 4 hour storage time)
Every 24 hours (1 bin + 1 day storage time)
Threshold reports
Supervision and alarms
Plug-in circuit pack Indication LED continuously on: diagnostic error
LED flashing: transmission signal error
System Controller indicators/buttons:
LED indicators Power, Prompt and Deferred alarm
Abnormal, Info, Suppressed, UseCIT,
and Disconnect
Push-buttons Suppress, Disconnect
CIT connector F-interfaces V.10/RS-232
Station alarm interface outputs Floating
Miscellaneous Discretes 8 inputs and 8 outputs
Q-LAN interface to connect to EMS or other Network
Elements
Protection and redundancy
Tributary Level Redundancy:
1:N Equipment protection on 1.5 Mbps & 2 Mbps Interface circuit packs (N= max. 8)
1+1 Equipment protection on 34/45 Mbps, 45 Mbps Interface circuit packs
1:N Equipment protection on 140/STM1e (N= max. 4)
1+1 Equipment protection on Cross-connect circuit pack and Power & Timing circuit
pack
SNC/N protection:
VC-4 level
VC-12, VC-3 level
Programmable hold-off times
Dual Node Interworking (DNI):
between two MS-SPRings
between MS-SPRing and LO-SNC protected SubNetworks
Support of VC-4-4c Concatenation
MSP:
1+1 MSP on optical STM-0 (G.783 Annex B), STM-1 (G.783 Annex A & B) and
STM-4 (G.783 Annex A & B) tributary Interface signals
1+1 MSP on optical Line Interface circuit packs STM-16 (G.783 Annex A)
MS-SPRing:
MS-SPRing in two fiber ring Add/Drop applications
Selective MS-SPRing
Cascading of protection schemes in one Network Element
Programmable hold-off times
Maximum of 50 ms switching time for all protection mechanisms
ADM161_PB025.qxd 11/10/2000 3:17 PM Page 7