12]: Restoring Reference Priority Configuration; Time And Frequency Option Cards; 1Pps Out [1204-18, -19, -21, -2B] - Spectracom SecureSync 1200 User Reference Manual

Follow the System Software update procedure, as outlined under "Software Updates" on
page 302.
NEXT : Restore your reference priority configuration, as described in the following topic, and
configure other option card-specific settings, as described in the main User Manual.

5.2.2.15 [12]: Restoring Reference Priority Configuration

If you saved your Reference Priority configuration under STEP [2], you can now restore it:
For instructions, see "Restoring the System Configuration" on page 310.
Card-specific configuration instructions may be found in the Option Cards Guide, see "Option
Card Identification" on page 13 to locate your card.
5.2.3

Time and Frequency Option Cards

This section contains technical information and Web UI procedures relevant to SecureSync
option cards designed to deliver time and frequency signals.
5.2.3.1

1PPS Out [1204-18, -19, -21, -2B]

1PPS Output Modules (TTL, 10V, RS-485)
The 1PPS output module provides four additional 1PPS outputs on BNC connectors or terminal
block for the SecureSync platform.
Model 1204-18 1PPS Output (TTL): Specifications
Outputs: (4) 1PPS output
Signal Type and Connector: TTL (BNC)
Output Load Impedance: 50 Ω
Rise Time to 90% of Level: <10 ns
Programmable Pulse Width: 100 ns to 900 ms with 20 ns resolution
Absolute Phase Error: ±50 ns (1σ)
Programmable Phase Shift: ±5ns to 500 ms with 5ns resolution
Maximum Number of Cards: 6
Ordering Information: 1204-18 1PPS TTL output module, BNC connector
SecureSync User Reference Guide
APPENDIX
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