12778474-002-2 Revision F – March 2004
TSG-3800 User’s Guide
37
Overview of the TSG-3800 Series
TSG-3800 19-Inch Main Shelf
Description
The TSG-3800 19-inch Main Shelf assembly is a 19-inch aluminum chassis
equipped with card guide slots for plug-in modules. The slots are partitioned into
keyed sections. The main shelf has a rear plane assembly with connections for
input, power, alarm, communication, and output signals. The main shelf assembly
includes flanged brackets for mounting to a standard 19-inch relay or instrument
rack. A rear cover and cable tie-bar are also included.
Specifications
Table 1-1
lists the general specifications for the TSG-3800 19-inch Main Shelf. For
specifications on individual modules, refer to chapters 5 through 7 in this guide.
Table 1-1. Specifications of the TSG-3800 19-Inch Main Shelf
Specification
Characteristic
Long-term Frequency Error
Exceeds Stratum criteria defined in ANSI T1.101-1994
Clock Performance
Meets SONET requirements per ANSI T1.105-1988
Event Log
Stores up to 500 events including input and system faults,
operator inputs, and system actions; time and date
stamped to the nearest millisecond
System Interface
Dual EIA-232 connectors, 300 to 19,200 baud, 8-bit, no
parity, 1 stop bit; also Ethernet 10 base-T (optional)
Measurements
MTIE Measurements (each input)
Most recent 50 values, 100, 1,000, 10,000 second periods
Frequency Measurements
(each input)
Most recent 50 values, 100, 1,000, 10,00 second averages
Phase Measurements (each input)
Most recent 100 values @ 1 second avg; 1,000 values @
100 second avg
Control Value Calculations
(each of 2 clocks)
Most recent 100 values @ 1 second avg; 1,000 values @
100 second avg
Other Measurements (each input)
AIS, BPV, CRC, LOS, OOF errored and clear intervals
Distribution Capacity
Main Shelf
2 module pairs (40 outputs) in 19
″
shelf
4 module pairs (80 outputs) in 23
″
shelf
Expansion Shelf #1
9 module pairs (180 outputs) in 19
″
shelf
11 module pairs (220 outputs) in 23
″
shelf
Expansion Shelf #2
9 module pairs (180 outputs) in 19
″
shelf
11 module pairs (220 outputs) in 23
″
shelf
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