Product specifications

Table 7-2 Port A Pin-out, RS-232C Interface Level

Pin Signal Description

2 TXD NMEA 0183, binary, and RTCM output

3 RXD NMEA 0183, binary, and RTCM input

5 Sig. Ground Signal return

Table 7-3 Port B Port Pin-out, RS-232C Interface Level

Pin Signal Description

2 TXD NMEA 0183, binary, and RTCM output

3 RXD NMEA 0183, binary, and RTCM Input

5 Sig. Ground Signal Return

Table 7-4 Port C Port Pin-out, RS-232C Interface Level

Pin Signal Description

2 TXD NMEA 0183, binary, and RTCM output

3 RXD NMEA 0183, binary, and RTCM Input

5 Sig. Ground Signal Return

Table 7-5 Port D Port Pin-out, RS-232C Interface Level

Pin Signal Description

2 TXD CSI Proprietary

3 RXD RTCM Input

5 Sig. Ground Signal Return

Note: Port D is to be used exclusively for external RTCM input to the Crescent

Vector from a source such as a beacon receiver. This port operates

permanently at 9600 baud with an 8 data bit, no parity, and 1 stop bit

configuration. The presence of Port D does not, however, preclude you from

using Port A, B or C for correction input.