Spectracom SecureSync 1200 User Reference Manual page 390

APPENDIX
Progr. Frequ. Card 1204-30 (TTL, RS-485): Specifications
Outputs : (4) independently programmable square wave outputs
Signal Type : RS-485
Wave Form : square
Connector : Terminal block
Output Load Impedance : n/a
Output Pulse/Frequency Rates : 1PPS to 25 MPPS in 0.1-PPS increments
Accuracy : Function of input synchronization source (GPS, IRIG, 1 PPS, etc.)
Synchronization : Output frequency locked to SecureSync disciplined 10 MHz
Jitter , cycle-to-cycle: <10 ns
Phase Noise : n/a
Harmonics : n/a
Spurious : n/a
Maximum Number of Cards : 6
Ordering Information : 1204—30, Programmable Frequency Card, TTL, RS-485
Figure 5-29:
Table 5-8:
Pin No.
1
2
3
4
5
6
374
Model 1204-30 option card rear plate
Model 1204-30 terminal block pin assignments
Function
Frequ. Output 1 +
Frequ. Output 1 –
GND
Frequ. Output 2 +
Frequ. Output 2 –
Frequ. Output 3 +
SecureSync User Reference Guide