Trimble Outdoors 5700 - Manual (Page 162)

1 3 Event Marker Input and 1PPS Output
1 4 6 5700 GPS Receiver User Guide
Refer
ence
13.3
1PPS Output
The 5700 receiver can output a one pulse per second (1PPS) time
strobe with an associated ASCII time tag output. The pulse is output
through Port 2 of the 5700 receiver using the event marker/1PPS cable
(Part Number 36451-00).
13.3.1
1PPS Pulse Definition
The leading edge of the pulse coincides with the beginning of each
UTC second, as shown in Figure 13.1. The pulse is driven by an
RS-422 driver between nominal levels of 0 V and 4 V. The leading
edge is positive, rising from 0 V to 4 V.
Figure 13.1 Time tag relation to 1PPS wave form
0 V
4 V
Seconds
Time tag output here Time tag applies here