RACOM PROFI MW160, Operating Manual

Page: 14 / 27

3.5. GPS Module
A GPS module can be positioned in the first or second slot of optional modules, see section Section 3.9,
“View of Radio Modem”. (For MG100 only in the first slot.) The second slot is recommended because
when using slot 1 you first need to disconnect it in the modem´s service mode, see section Section 3.8,
“Service Connector”. You can find further detailed information on the module manufacturer’s web
pages
1
.
GPS module connectors
• antenna connector – SMA female – marked ANT
• data connector – DSUB9 (Canon) – marked NMEA
Antenna connector for an active antenna – the antenna supply to the antenna connector is short-circuit
proof
Tab. 3.6: Connection of data cable
RS232 signal DSUB9F
pin
+3,3 V through 10 k resistor 1
data NMEA output 2
see Note 3
input ALARM 0 (from sw v. 8.05) 4
GND 5
output 1 PPS (pulse per second) 6
input ALARM 1 7
see Note 8
unwired 9
Note
Inputs ALARM 0, 1 are passive, a positive 3-15 V voltage should be applied for accepting
functions. For the contact activacion can be connect the positive potential from pin No. 1. •
• Pin No. 3 becomes the input for configuration data, if we connect pin No. 8 to GND.
• The behaviour of time pulses at pin No. 6 (default)
+6 V
1 s
100 ms
-6 V
900 ms
1
http://www.u-blox.com/products/modules.html
Wideband modems – PROFI MW160 – © RACOM s.r.o. 14
Connectors