CALAMP WIRELESS NETWORKS INC. GPDB Manuale Utente
122 20130-003
G3 Installation Guide
17
Table 1 - G3 LEDs indications
G3 LEDs indications
Power-on Sequence (LEDs are paired)
Normal Operation (LEDs are independent)
PWR
RX / TX
Indication
PWR
Indication
RX / TX
Indication
Red
Red
Normal boot-up
start
(10 to 27 sec.)
start
(10 to 27 sec.)
Green*
Normal ready state
Off
No network activity
Amber
Off
Then 8 seconds
to completing
boot-up
to completing
boot-up
No
rm
al
Green
Off
Normal state
Amber*
1 Pulse per sec (1 pps)
Sufficient satellites
acquired by GPS
Sufficient satellites
acquired by GPS
Green
Receiving packets
“DBA sync” allows transmit
“DBA sync” allows transmit
Red
Off
Hardware failure
flashing
Red
-
Missing DSP
RSSI calibration
RSSI calibration
Amber
Receiving packets
“DBA out-of-sync” prevents
transmit
“DBA out-of-sync” prevents
transmit
E
rrors
Slow
Red/Green
Red
Software failure
(firmware erased)
(firmware erased)
Red
Transmitting
S
p
eci
al
Fast
Red/Green
Red
Programming in
progress
progress
* For 800 & 900 MHz US models (using Transmit duty cycle limit firmware) :
- PWR lit Green = normal indication or Flashing Amber = normal + 1pps
- PWR lit Amber = exceeded duty-cycle or Flashing Green = exceeded d-c + 1pps
- PWR lit Amber = exceeded duty-cycle or Flashing Green = exceeded d-c + 1pps
3.2 DTE Port Interface
For all three ports, we recommend the use of a shielded 9-wire cable with all pins connected. These ports
can be used for unit configuration, maintenance, & adjustment as well to connect user applications.
can be used for unit configuration, maintenance, & adjustment as well to connect user applications.
Table 2 - DTE port pin functions
DE-9 F pin #
Function
1
DCD – from G3, normally asserted
2
RXD – data from G3
3
TXD – data to G3
4
DTR – to G3, handshaking
5
Ground
6
DSR – from G3, tied to VCC through current limiting resistor
7
RTS - to G3, handshaking
8
CTS – from G3, handshaking
9
AUX - auxiliary input to G3, (for port 2:
“Officer requires assistance” Alarm input)
It may be activated by (normally open) dry contact pull-up to the port’s DSR output. It may also tolerate
user pull-up to external +12 VDC (car battery), but an isolated dry contact is preferred due to the risk of
noise-related false alarms caused by the vehicle’s electrical system.
A +3 to +12 V signal at this pin will send a DMP “x” (On) message to the base.
An open or ground signal will send a DMP “y” (Off) message.
Messages are only sent when a signal transition occurs.
See Appendix “A” on page 24 for further details.
user pull-up to external +12 VDC (car battery), but an isolated dry contact is preferred due to the risk of
noise-related false alarms caused by the vehicle’s electrical system.
A +3 to +12 V signal at this pin will send a DMP “x” (On) message to the base.
An open or ground signal will send a DMP “y” (Off) message.
Messages are only sent when a signal transition occurs.
See Appendix “A” on page 24 for further details.
3.2.1 RS-232 Interface Signal Levels
In the descriptions of data signals, the following conventions are used:
Table 3 - RS-232 Signal Levels
Term
Alternates
Signal level
ON
asserted, spacing
+3 to +15 V
OFF
dropped, marking
-3 to -15 V