NEC 2400 IPX Whiteboard Accessories User Manual


 
NDA-24296 CHAPTER 3
Page 601
Revision 1.0
PA-24DTR (DTI)
Digital Trunk Interface
Digital PAD Setting Table for PA-24DTR (DTI)
As mentioned in General Function, this card is equipped with a mask ROM in which the following typical PAD pat-
terns have been already written. PAD value is determined by selecting a desired PAD pattern, which can be done by
key setting of the SW 12/58 (elements 4, 5, 6) on this card, and programming of the PAD data by the ARTD com-
mand - CDN=30(PAD). The PAD patterns and ARTD data correspond as listed below.
Note:
- represents GAIN in this table.
PAD DATA
ARTD
CDN=30
PAD Pattern (selected by key setting)
PAD Pattern 1 PAD Pattern 2
A→µ Loss
(Bothway)
A→µ Loss
(Receive)
µ→A Loss
(Bothway)
µ→A 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 [dB] 0 [dB] 0 [dB] 0 [dB] 0 [dB] 0 [dB]
2 4 [dB] 4 [dB] 3 [dB] 3 [dB] 4 [dB] 4 [dB] 0 [dB] 4 [dB] 4 [dB] 4 [dB] 0 [dB] 4 [dB]
3 6 [dB] 6 [dB] 0 [dB] 6 [dB] 6 [dB] 6 [dB] 0 [dB] 12 [dB] 6 [dB] 6 [dB] 0 [dB] 12 [dB]
4 8 [dB] 8 [dB] 3 [dB] 9 [dB] 8 [dB] 8[dB] 0 [dB] 8 [dB] 8 [dB] 8 [dB] 0 [dB] 8 [dB]
5 Key settings of SW 11/39 - 3,4 correspond to PAD values. (Regardless of PAD patterns).
7 0 [dB] 0 [dB] 0 [dB] 0 [dB] Through Through Through Through Through Through Through Through