Specifications; Configuring The Rs-422 Selective Rate Clock Module - Symmetricom TSG-3800 Series User Manual

Specifications

Table 7-35 lists the functional specifications for the RS-422 Selective Rate Clock
module.
Table 7-35. RS-422 Selective Rate Clock Module Specifications
Signal Characteristic
Frequency
Format
Waveshape
Width
Period
Rise Time
Fall Time
Amplitude
Jitter
Impedance
Number of Outputs

Configuring the RS-422 Selective Rate Clock Module

This section describes how to configure the RS-422 Selective Rate Clock module to
meet the requirements of your particular installation.
Caution: To prevent ESD damage to the module, always observe the
precautions described in
Use the following steps to set the output frequency of each port.
1. Press the PORT SEL button until the desired port is displayed. The port display
will increment from 1 to 9 and A, indicating ports 1 to 9 and "A" indicating port 10.
2. Press the count up, (CNT UP), or count down, (CNT DWN), push buttons to
select the desired output frequency. Count up and down has four incremental
speeds. When either switch is held, the count speed increases. When you
release the push button, it resets to the lowest speed.
12778474-002-2 Revision F – March 2004
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Specification
User Selectable Per Channel, 8 kHz to 4096 kHz in increments
of 8 kHz
Per TIA/EIA -422-B
Squarewave
324 or 244 ns (± 30 ns)
648 or 488 ns (± 30 ns)
< 50 ns
<50 ns
4.0 to 6.0 V
p-p
< 0.01 UI
100 Ω ±20%
10 Differential Outputs
Properly Handling the
Output Modules
RS-422 Selective Rate Clock Module
Modules, on page 61.
TSG-3800 User's Guide 255