Cisco NCS 540 - GPS Port Pinouts

GPS Port Pinouts
The table below summarizes the GPS port pinouts.
Table 16: GPS Port Pinouts
1PPS (Input and Output)10 MHz (Input and Output)
Input—Rectangular pulse
Output—Rectangular pulse
Input—Sine wave
Output—Sine wave
Waveform
Input— > 1.2V
Output— > 2.5V
Input— > 1.7 volts p-p
Output— > 2.2 volts p-p
Amplitude
50 ohms50 ohmsImpedance
50% duty cycle50% duty cyclePulse Width
Output—5 nanosecondsInput—AC coupledRise Time
Cisco Network Convergence System 540 Passive Cooled Small Density Routers Hardware Installation Guide
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Appendix
GPS Port Pinouts