Technical Manual

D C U M a i n t e n a n c e a n d O p e r a t i o n M a n u a l 73
APPENDIX
C
DCU-G ENERATED H EADEND M ESSAGES
Source Message Frequency DCU 2 DCU 2+
Mainboard
Firmware Description
Cell Module BER=7
Each call
attempt
X X
Bit error rate (in percent) after AT+CGREG command
sent out.
Value take after registration with the cell tower
Index of RSRQ (dbM) for LTE:
0: (-4 ) to (-3 )
1: (-6 ) to (-5 )
2: (-8 ) to (-7 )
3: (-10) to (-9 )
4: (-13) to (-11)
5: (-15) to (-14)
6: (-17) to (-16)
7: (-19) to (-18)
99 - not known or not detectable
Bit error rate (in percentage) (for CDMA and HSPA)
0 - less than 0.2%
1 - 0.2% to 0.4 %
2 - 0.4% to 0.8%
3 - 0.8% to 1.6%
4 - 1.6% to 3.2%
5 - 3.2% to 6.4%
6 - 6.4% to 12.8%
7 - more than 12.8%
99 - not known or not detectable
Cell Module CADC=3.76V
Each call
attempt
X
Battery voltage being supplied to the module; used with
CDMA phones.
Cell Module CCAD=1
Each call
attempt
X
Result of AT+CAD command used for CDMA phones. It
returns one of the following codes:
0: If no service is available
1: If CDMA digital service is available
2: If TDMA digital service is available
3: If analog service is available (values 4 to 255
reserved)