Symmetricom SDU-2000, User Manual

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12713020-002-2 Revision D – April 2004 SSU-2000 User’s Guide 203
Output Module Reference Data
RS-422 Output Module
Performance Specifications
Specifications for the RS-422 Output module are provided in Table 8-15 .
SOURCE C Green/Amber On (Green) = The Bypass clock (Clock C) is the selected
source clock. See
Bypass Clock (Clock C) , on page 32
On (Amber) = Faulty or missing Bypass clock
Off = Bypass clock is ignored, or good and not selected
SOURCE D Green/Amber On (Green) = The Expansion clock (Clock D) is the selected
source clock. The module is in an Expansion shelf
On (Amber) = Faulty or missing Expansion clock
Off = Expansion clock is ignored, or good and not selected
OUTPUT
FAULT Amber On = Module has detected one or more faulty outputs
Off = All output signals are good
Table 8-15. RS-422 Output Module Performance Specifications
Performance
Characteristic
Specification
Frequency 8 kHz to 4096 kHz, in 8 kHz increments
Format/level Per TIA/EIA-422V
Waveshape Differential square wave, 50/50 duty cycle
Single-ended square wave, 50/50 duty cycle
Rise/Fall time < 50 ns
Jitter
<
0.03 UI up to 1.96 MHz
Number of Outputs 10 differential
10 single-ended
Table 8-14. RS-422 Output Module Status LED Indicators (Continued)
Indicator Color Description