User's Manual

Title:
AJ102 Data Concentrator Unit User Manual
Ver.
1.4
Page:
11 of 23
4.8 Self-diagnose and Working Status
DCU self-diagnose the communication ports (i.e. 3G module, RF, RS485, optical port etc), clock.
The DCU status word shows the self-diagnostic result and the current working status:
Bit#
Description
Condition to Set
Condition to reset
0
Device power up
DCU is power up
-
1
3G module failure
3G module failure
Recovered from failure
2
3G signal level is too low
3G CSQ less than 11, signal quality
level is too low
3G CSQ is not less than
11
4
RF module failure
RF communication module failure
Recovered from failure
5
NAND flash space full alarm
Flash memory is occupied over 80%
Flash memory is not full.
6
Main cover removal
Main cover is removed
Main cover is closed
7
DCU unlock
DCU is unlock
DCU is locked.
8
Optical port failure
Optical port loop back test failure
Recovered from failure
9
RS-485 failure
RS-485 loop back test failure
Recovered from failure
10
Terminal cover removal
Terminal cover is removed
Terminal cover is closed
11
Clock invalid
Clock is invalid
Clock is set
12
Reserved
13
Reserved
14
Reserved
15
Image download flag
Meter firmware upgrade is in
progress
Meter firmware upgrade
is not running
4.9 Event Logs
The DCU records the following events. It is configurable whether push the event to central system.
Group
Capacity
Code
Description
Push
Capture
Objects
Standard
Event
200
0x0001
Power off
Yes
Event code,
timestamp
0x0002
Power on
Yes
0x0009
System reboot
No
0x0010
Clock is invalid
Yes
0x0017
3G module failure
Yes
0x0019
RF module failure
Yes
0x0032
Parameters is changed
No
0x0057
Input event (SPD detected)
SPD OK: Giving a disconnect signal
SPD Fail: Giving a connect signal
Yes
0x0603
Clock is adjusted since the clock is
over limit (10 minutes)
No
0x0023
Flash memory full (80% used)
Yes
Fraud Event
200
0x011F
Main cover is removed
Yes
Event code,
timestamp
0x0120
Main cover is closed
Yes
0x0121
Terminal cover is removed
Yes