SkyNode
®
S100 Installation and Operation Manual
Page
14
of
32
S100-400, R2.01
sees the light, they can press an “Acknowledge” button (wired into a properly configured discrete input;
see Section 4.4.3.1) to turn-
off the light and send an “acknowledged” message back to dispatch.
Configuring the discrete output is done remotely by Latitude Technologies Corporation; for assistance,
call
+1 (250) 475-0203
and ask for technical support.
4.4.3.3
RS-232
Function
Port Name
Pin #
RX_AUX
P1
1
TX_AUX
P1
3
RTS_AUX
P1
15
CTS_AUX
P1
14
Signal GND
P1
2
GPS_IN
P1
17
GPS_OUT
P1
4
Signal GND
P1
16
RX
P2
2
TX
P2
3
DSR
P2
6
DTR
P2
4
RTS
P2
7
CTS
P2
8
GND
P2
5
Table 5 - S100 RS-232 Interface.
The S100 has 3 sets of RS-232 lines for communication. The main RS-232 port is P2, the DB9 9-pin
serial port on the front of the device; this port outputs all the debug information and can also be used
with Latitude API devices. This is also the port used for upgrading the S100’s firmware.
Port setting for P2:
Baud
19200 (for upgrading firmware, use 57600)
Data Bits
8 bit
Parity
None
Stop Bits
1 bit
Flow Control
None
There is an auxiliary RS-232 port available on P1; with select firmware versions, this is can be also be
used to output debug data or communicate with Latitude API devices, but not for upgrading firmware.
Port settings are the same as for P2.
P1 also contains a GPS RS-232 port; this can be set to either output a stream of raw position data from
the internal GPS module, or accept GPS position data from an external source to be used instead of
the internal module.
Port setting for the GPS In/Out port:
Baud
9600
Data Bits
8 bit
