Troubleshooting; Pinouts; Gps Port Pinouts; Chapter - Cisco ASR-920-12SZ-IM Hardware Installation Manual

Troubleshooting

This chapter provides information about troubleshooting issues, if any, on the Cisco ASR 920 Series
Aggregation Services Router.
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Pinouts

The sections describe the pinouts for the Cisco ASR 920 Series Router interfaces:

GPS Port Pinouts

The table below summarizes the GPS port pinouts.
Table 14: GPS Port Pinouts
Waveform
Amplitude
Impedance
Pulse Width
Rise Time
Pinouts, page 99
LED Summary, page 103
Cisco ASR-920-12SZ-IM Aggregation Services Router Hardware Installation Guide
C H A P T E R
10Mhz (input and output)
Input—Sine wave
Output—Square wave
Input—1.7 volt p-p (+8 to +10
dBm)
Output—2.4 volts TTL compatible
50 ohms
50 percent duty cycle
Input—AC coupled
Output—5 nanoseconds
5
1PPS (input and output)
Input—Pulse
Output—Pulse
Input—2.4 volts TTL compatible
Output—2.4 volts TTL compatible
50 ohms
26 microseconds
40 nanoseconds
99