User Manual

AS4000 Subscriber Terminal
Installation and Commissioning DLP 015
605-0000-436
Issue 1.5 Date: 18th October 1999
Page 4 of 4
Programming 12 and 16kHz SPM tones
1. With the RF channel information accepted there is a further process to select the
SPM frequency option. The command supports options for 12kHz or 16kHz
Subscriber Private Metering (SPM) on voice STs.
2. The format has 5 numbers starting with # as shown below. Characters 2,3,4 are the
options code ( range 000 to 255). Character 5 is the checksum –
16kHz SPM has been assigned to option code 000
12kHz SPM has been assigned to option code 001
1 2 3 4 5
# <n> <n> <n><n> <checksum>
The algorithm check number is the sum of the digits -1.
i.e. if the result of summing the digits was 0 the number entered would be 9
and if the result of summing the digits was 1 the number entered would be 0
Hence: 16kHz SPM is programmed with #0009 and 12kHz SPM is programmed with
#0010
To program the required SPM option repeat steps 7 to 13 above and enter the required
SPM option code digits into the CRU using a phone keypad at step 7.
STOP. THIS PROCEDURE HAS BEEN COMPLETED.