Alcatel 1850 TSS-320 Technical Handbook page 185

Output Housekeeping signals (CPO) and
Remote Alarms
Max. guaranteed current with closed condition 50 mA
Voltage drops vs. ground with closed condition -2 V ÷ 0 V
Max. allowed voltage with open condition
Input Housekeeping signals (CPI)
Max. guaranteed current with closed condition 3 mA
Voltage drops vs. ground with closed condition -2 V ÷ 0 V
Max. allowed voltage with open condition
Clock characteristics
Selectable input clock
No. of selected clock (normal mode)
Synchronization output
Operational modes
Synchronization selection
Protection against lighting surges
Additional features:
VCi Signal Label management
Programmable alarms severity
J0 - Section Trace Management
Technical Handbook Common
Technical Specification
By electronic relay contacts to be connected to exter-
nal negative voltage:
-72 V
-72 V
2048 KHz from 2 Mbit/s port (T2)
2048 kHz external sync clock (2 input, T3a and T3b) or
2048 Mbit/s external sync (2 input, T6a and T6b)
STM-N ports (T1)
6 max.
2048 kHz G.703 (2 output, T4a and T4b)
or
2048 Mbit/s (2 output T5a and T5b)
Locked to reference
Free-run mode ±4.6 ppm (PLL without reference)
Holdover mode drift 0.37 ppm max./day (PLL with
stored frequency for more than half an hour, with no
selected input frequency)
Priority and SSM algorithm
Not applicable
8DG 07734 AAAA Edition 01
Alcatel 1850 TSS-320 Rel. 1.1
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