Hemisphere GPS SBX-4, Integrator Manual

Page: 13 / 37

SBX-4 Integrator Guide Chapter 2-Integrating the SBX-4 Page 9 of 22
SBX-4 Connector Pin Assignments
The SBX-4 has two header connectors designated as J200 and J300, labeled with on-board silk-
screening. The J200 connector is a 1 x 4 pin header with 0.1 in (2.54 cm) spacing that provides
antenna power input, and signal distribution. The J300 connector is a 2 x 12 pin header with 0.1
in (2.54 cm) spacing that provides access to antenna power input, receiver serial ports, receiver
power, external reset and external lock indicator functions.
Table 1-1 provides pin-out information for connector J200:
Table 1-1: SBX-4 connector J200 pin-out (Samtec TSW-10407-G-S)
Pin Signal Description
1, 3 Ground Analog ground
2 RF signal input Antenna RF signal input
4 Antenna power output Antenna power supply 5 VDC
Table 1-2 provides pin-out information for connector J300:
Table 1-2: SBX-4 connector J300 pin-out (Samtec TSW 11207-G-D)
Pin Signal Description
1, 2 Antenna power in Antenna power supply input: 5
VDC
3, 4 SBX-4 power in Receiver power supply input:
3.3 VDC
14 TXD0 output, 3.3 V
CMOS NMEA, RTCM and status output
15 TXD1 output, 3.3 V
CMOS NMEA and status output
16 Lock Lock indicator (active high)
17 RXD0 Input, 3.3 V CMOS Command/query input
18 RXD1 Input, 3.3 V CMOS Command/query input
19 External reset input External reset input (active
low)
21, 22
23, 24 Ground Digital ground