Cisco ASR-920-12SZ-A User Manual

DescriptionDirectionSignal
Name
Pin
Not used——7
Not used——8
GPS Port Pinouts
The following table summarizes the GPS port pinouts.
The 10 Mhz and 1 PPS interfaces can be configured as input or output using Cisco IOS CLI commands. For
more information, see the Cisco ASR 920 Series Aggregation Services Router Configuration Guide.
Note
Table 12: GPS Port Pinout
1PPS (input and output)10 Mhz (input and output)
Input—Pulse shape
Output—Pulse shape
Input—Sine wave
Output—Sine or square wave
Waveform
Input— > 2.4 volts TTL compatible
Output— > 2.4 volts TTL compatible
Input— > 1.7 volt p-p (+8 to +10 dBm)
Output— > 2.4 volts TTL compatible
Amplitude
50 ohms50 ohmsImpedance
26 microseconds50% duty cyclePulse
Width
40 nanosecondsInput—AC coupled
Output—5 nanoseconds
Rise Time
Time-of-Day Port Pinouts
The following table summarizes the ToD/1-PPS port pinouts.
Table 13: RJ-45 1PPS/ToD Port Pinouts
DescriptionDirectionSignal
Name
Pin
Do Not ConnectOutputRESERVED1
Do Not ConnectInputRESERVED2
1PPS RS422 signalOutput or
Input
1PPS_N3
Cisco ASR-920-12SZ-A and Cisco ASR-920-12SZ-D Aggregation Services Router Hardware Installation Guide
66
Troubleshooting Aids
GPS Port Pinouts

Cisco ASR-920-12SZ-A Specifications

General

Brand	Cisco
Model	ASR-920-12SZ-A
Category	Network Router
Language	English