LEICA GPS1200 User Manual

Page 122

122

GPS1200+

Technical Data

Event input

For GX1200+ with PPS/Event option and GRX1200+/GRX1200+ GNSS

External oscillator
input

For GRX1200+/GRX1200+ GNSS

Pulse type:

TTL, positive or negative going pulse

Pulse length:

125 ns at minimum

Voltage:

TTL level, ~ 5 V, min. 3.3 V

Pin definition:

Centre = signal, Case = ground

Socket:

LEMO HGP.00.250.CTL

External clock input:
Frequency:

5 MHz or 10 MHz

Input impedance:

Ω nominal

Input VSWR:

2:1 maximum

Signal level:

0 dBm minimum to +13.0 dBm maximum

Frequency stability:

±0.5 ppm maximum

Wave shape:

Sinusoidal

Connector:

MMCX female