CHAPTER 3 NDA-24296
Page 588
Revision 1.0
PA-24PRTB-A
Primary Rate Interface Trunk
Digital PAD Settin g Table for PA-24PRTB-A
This card is equipped with a mask ROM in which the following typical PAD patterns have been already
written. PAD value is determined by selecting a desired P AD pattern, which can be done by key setting of
the SW 5 (elements 1, 2, 3) on this card, and progr amming of the PAD data by the ARTD command - PAD.
The selected PAD pa ttern and the programmed ARTD PAD data correspond as listed below.
Note: - represents GAIN in this table .
PAD DATA
ARTD
PAD
PAD P attern (selected by key setting)
PAD Pattern 1 PAD Pattern 2 µ→A Loss
(Bothway) µ→A Loss
(Receive) A→µ Loss
(Bothway) A→µ Loss
(Receive)
SEND RECEIVE SEND RECEIVE SEND RECEIVE SEND RECEIVE SEND RECEIVE SEND RECEIVE
1 2 [dB] 2 [dB] -3 [dB]
Note 3 [dB] 0 [dB] 0 [dB] 0 [d B] 0 [dB] 0 [ dB] 0 [dB] 0 [dB] 0 [dB]
2 4 [dB] 4 [dB] 3 [dB] 3 [d B] 4 [dB] 4 [dB] 0 [d B] 4 [dB] 4 [ dB] 4 [dB] 0 [dB] 4 [dB]
3 6 [dB] 6 [dB] 0 [dB] 6 [d B] 6 [dB] 6 [ dB] 0 [d B] 12 [d B] 6 [dB] 6 [dB] 0 [dB] 12 [dB]
4 8 [dB] 8 [dB] 3 [dB] 9 [d B] 8 [dB] 8 [dB] 0 [d B] 8 [dB] 8 [ dB] 8 [dB] 0 [dB] 8 [dB]
5 PAD value complies with key s ettings of SW5-6,7. (Irrelevant to P AD pa tt er n s )
7 0 [dB] 0 [dB] 0 [dB] 0 [dB] Through Through Through Through Through Through Through Through