NEC NEAX 2400 IMX, Руководство пользователя

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CHAPTER 4 ND-70185 (E)
Page 34
Revision 3.0
INSTALLATION
Key Setting on Circuit Cards
Note 1: 64Kbps is used for T1 or E1 interface.
56Kbps is used for T1 interface with bit stealing.
48Kbps is used for T1 interface with both bit stealing and Zero Code Suppression (or Bit 7 Stuffing).
Note 2:
When n is bigger than 1, Time Slot Sequence Integrity (TSSI) must be guaranteed at the network side.
Note 3: The following is an example key setting when n = 2.
SW11-1 = ON
SW11-2 = ON
Table 4-2 MODE Switch Setting
SWITCH NAME SETTING
STANDARD
SETTING
DESCRIPTION
MODE 0-7 Not used
8
×
Standard setting
(When the DTI is connected with the card’s front cable)
9
Fusion link test mode
(When the DTI is connected with the card’s front cable)
A-F Not used
Table 4-3 DIP Switch (SW14) Setting
SWITCH NAME
SWITCH
NUMBER
SETTING
STANDARD
SETTING
DESCRIPTION
SW14
1
ON
×
Positive logic for the D/I CONT
OFF Negative logic for the D/I CONT
2
Note 1
ON
×
The fusion data link speed inserted onto the T1
interface
Note 3
OFF
3
Note 1
ON
×
OFF
4
ON LAPD signal link performs as “network.”
OFF LAPD signal link performs as “user.”
4
C
0
2 6
A
E
1 2 3 4
OFF
SW14-2 SW14-3 SPEED (Note 2)
ON ON 64Kbps
×
n (1~24)
ON OFF 48Kbps
×
n (1~24)
OFF ON 56Kbps
×
n (1~24)
OFF OFF Not used
ON
OFF
CH
1
16
2
17
3
18
4
19
5
20
6
21
7
22
8
23
SW13
ON
OFF
CH
1
8
2
9
3
10
4
11
5
12
6
13
7
14
8
15
SW12
ON
OFF
CH
1
0
2
1
3
2
4
3
5
4
6
5
7
6
8
7
SW11
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