Nixie Tube Clock ‘LTC’
Issue 1 (1 November 2011)
www.pvelectronics.co.uk
- 28 -
8.6 Connecting a GPS receiver
The clock has been designed for, and tested with a Globalsat BR-355 GPS
receiver (available separately from PV Electronics).
It may be possible to connect other GPS receivers with the following
specification:
Power consumption max 50mA
Supply voltage 5V
Output signal levels: RS232 or TTL
Serial baud rate: 4,800 bps, 9,600 bps, 19,400 bps or 38,400 bps
Output protocol: NMEA-0183, including $GPRMC sentence
The Globalsat BR-355 receiver plugs directly into the mini-DIN connector
on the rear of the clock PCB.