Product manual

Product Manual - DM991 Series V Family - 204.4092.08 33
A1 A2 A3 A4 A5
Number of
channels
Speed
OFF OFF OFF OFF OFF 32 2048 kbit/s
OFF OFF OFF OFF ON 1 64 kbit/s
OFF OFF OFF ON OFF 2 128 kbit/s
OFF* OFF* OFF* ON* ON* 3 192 kbit/s
OFF OFF ON OFF OFF 4 256 kbit/s
OFF OFF ON OFF ON 5 320 kbit/s
OFF OFF ON ON OFF 6 384 kbit/s
OFF OFF ON ON ON 7 448 kbit/s
OFF ON OFF OFF OFF 8 512 kbit/s
OFF ON OFF OFF ON 9 576 kbit/s
OFF ON OFF ON OFF 10 640 kbit/s
OFF ON OFF ON ON 11 704 kbit/s
OFF ON ON OFF OFF 12 768 kbit/s
OFF ON ON OFF ON 13 832 kbit/s
OFF ON ON ON OFF 14 896 kbit/s
OFF ON ON ON ON 15 960 kbit/s
ON OFF OFF OFF OFF 16 1024 kbit/s
ON OFF OFF OFF ON 17 1088 kbit/s
ON OFF OFF ON OFF 18 1152 kbit/s
ON OFF OFF ON ON 19 1216 kbit/s
ON OFF ON OFF OFF 20 1280 kbit/s
ON OFF ON OFF ON 21 1344 kbit/s
ON OFF ON ON OFF 22 1408 kbit/s
ON OFF ON ON ON 23 1472 kbit/s
ON ON OFF OFF OFF 24 1536 kbit/s
ON ON OFF OFF ON 25 1600 kbit/s
ON ON OFF ON OFF 26 1664 kbit/s
ON ON OFF ON ON 27 1728 kbit/s
ON ON ON OFF OFF 28 1792 kbit/s
ON ON ON OFF ON 29 1856 kbit/s
ON ON ON ON OFF 30 1920 kbit/s
ON ON ON ON ON 31 1984 kbit/s
Table 16. Digital Interface Speed Configuration
* These are the DIP-switches factory default configurations.
8.2. Clock Selection (DIPs A6 and A7)
Defines the clock used by the modem.
A7 A6 Clock
ON OFF Internal
OFF OFF Regenerated
OFF ON External
ON ON
External, with CT104 synched to CT113
Table 17. Internal Clock Selection of Equipment
The internal clock is obtained from the crystal oscillator from itself, with ±25ppm precision.
The regenerate clock is obtained through the line G.shdsl signal, having the same precision of the
equipment providing the signal. When operating with regenerated clock, the modem automatically
switches to internal clock in case of flaw in the G.shdsl signal in its input. When configured as LTU, the
modem can not be configured with regenerated clock.