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XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
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1
This option card operates without software configuration by the user.
Specifications
Framed All 1's DS1/T1 1544-kbps Outputs (T1 Outputs A and B):
Major and Minor Alarm Relay Closures:
64 Kb/s Composite Clock Output (Aux Out 1):
Outputs (Aux Out 2,3,4):
Synchronization:
Configuration
Prior installing the T1 card, configure the output settings as needed using S1, and JP4 through JP7 (See
Figure 12:
). The factory settings are indicated in
Figure 12:
and in the subsequent configuration tables.
Formats
SuperFrame (D4)
Line code
B8ZS/AMI (these are the same for all 1's)
Interface
Balanced, Z0=100
Ω
, on wire wrap pins
Wave Shaping
T1 short loop (DSX-1; 0 – 655 feet)
Format
Form-C Normally Open and Normally Closed contacts
Interface
Wire wrap pins
Contacts
Rated to 115 VAC/150 VDC at 2 A
Format
As per ITU-T G.703 Centralized Clock Interface. AMI with 5/8
duty cycle. All 1's with Bipolar Violations at an 8 Kb/s rate.
Interface
Balanced, 2 V peak into 135
Ω
, on wire wrap pins.
Frequency
1544 Kb/s
Interface
Balanced, RS-422 levels into 100
Ω
, on wire wrap pins
Synchronization
Phase locked to the clock’s internal 10 MHz
CPU-Aware No
CE Compliant
No
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