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Table 4-4 Switch Setting Patterns for the DTI Card (Continued)
SWITCH NAME
NUMBER
SW5D
1
2
3
4
OFF
Note:
This switch setting is applicable for a system which adopts Associated Channel Interoffice Signalling
(ACIS).
2.4 Digital PAD Setting
The PA-24DTR 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 PAD pattern, which can be done by key
setting of the SW 58 (elements 4, 5, 6) on the card, and programming of the PAD data by the ARTD com-
mand - CDN = 30 (PAD). The PAD patterns and ARTD data correspond as follows.
PAD
DATA
ARTD
PAD Pattern 1 PAD Pattern 2
CDN=
30
SEND RECEIVE SEND RECEIVE
-3
2
2
1
Note
4
4
3
2
6
6
0
3
8
8
3
4
5
Key setting of SW 39-3,4 correspond to PAD values. (Regardless of PAD patterns)
0
0
0
7
Note:
Stands for 3[dB] GAIN.
SWITCH
STANDARD
SETTING
ON
1
OFF
ON
2
OFF
ON
3
OFF
4
ON
Table 4-5 Digital Pad Setting
PAD Pattern [dB] (Selected by key setting)
A→µ Loss
(Bothway)
SEND
RECEIVE
3
0
3
4
6
6
9
8
0
Through Through Through Through Through Through Through Through
ND-70185 (E)
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SETTING
Digital PAD ROM selection: Special specifica-
tion
Digital PAD ROM selection: Standard specifica-
×
tion
×
LAYER2 signal logic: Positive
LAYER2 signal logic: Negative
Line fault is not notified to the upper CPU
×
Line fault is notified to the upper CPU
Zero Code Suppression is not provided
A→µ Loss
(Receive)
SEND
RECEIVE
0
0
0
4
0
4
6
0
12
8
0
8
INSTALLATION
Key Setting on Circuit Cards
MEANING
µ→A Loss
µ→A Loss
(Bothway)
(Receive)
SEND
RECEIVE
SEND
RECEIVE
0
0
0
4
4
0
6
6
0
8
8
0
CHAPTER 4
Page 39
Revision 3.0
0
4
12
8
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