Gps Port Pinout - Cisco ASR 903 Troubleshooting Manual

GPS Port Pinout

Pin
4
5
6
7
8
GPS Port Pinout
The platform is capable of receiving or sourcing GPS signals of 1 PPS & 10 MHz. These interfaces are
provided by two mini-coax 50-Ohm, 1.0/2.3 DIN series connector on the front panel. Similarly there are two
mini-coax 50-Ohm connectors provided in the front panel to output this 1PPS and 10MHz.
The table below summarizes the GPS port pinouts.
Table 2: GPS Port Pinout
Waveform
Amplitude
Impedance
Pulse Width
Rise Time
Table 3: GPS Port Pinout for ASR 900 RSP3
Waveform
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
2
Signal Name Direction
TX Ring Output
TX Tip Output
10 Mhz (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% duty cycle
Input—AC coupled
Output—5 nanoseconds
10 Mhz (input and output)
Input—Sine wave
Output—Sine and Square wave
Troubleshooting
Description
TX Ring
TX Tip
Not used
Not used
Not used
1PPS (input and output)
Input—Rectangular pulse
Output—Rectangular pulse
Input— > 2.4 volts TTL
compatible
Output— > 2.4 volts TTL
compatible
50 ohms
26 microseconds
40 nanoseconds
1PPS (input and output)
Input—Rectangular pulse
Output—Rectangular pulse