NEC NEAX2400 system manual Note 1: 64Kbps is used for T1 or E1 interface

INSTALLATION

Key Setting on Circuit Cards

SWITCH NAME

MODE

0	2	4
		6

E

C A

	Table 4-2 MODE Switch Setting
SETTING	STANDARD	DESCRIPTION
	SETTING
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	SETTING	STANDARD		DESCRIPTION
				NUMBER		SETTING
SW14				1	ON	⋅	Positive logic for the D/I CONT
					OFF		Negative logic for the D/I CONT
1	2	3	4				The fusion data link speed inserted onto the T1
OFF					ON	⋅
				2			interface	Note 3
				Note 1	OFF		SW14-2	SW14-3	SPEED (Note 2)
							ON	ON	64Kbps ⋅	n (1~24)
				3	ON	⋅	ON	OFF	48Kbps ⋅	n (1~24)
							OFF	ON	56Kbps ⋅	n (1~24)
				Note 1
					OFF		OFF	OFF	Not used
				4	ON		LAPD signal link performs as “network.”
					OFF		LAPD signal link performs as “user.”

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

ON

1 2 3 4 5 6 7 8

OFF

CH 0 1 2 3 4 5 6 7

SW11

ON	2	3	4	5	6	7	8
1

OFF

CH 8 9 10 11 12 13 14 15

SW12

ON	2	3	4	5	6	7	8
1

OFF

CH 16 17 18 19 20 21 22 23

SW13

CHAPTER 4 ND-70185 (E)

Page 34

Revision 3.0