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Connecting the NEC DS1000

Connecting the NEC DS1000
  • All wiring connects to the NEC DS1000 behind the slide-out cover on the cabinet.
  • There are six 6-wire ("RJ25" type) modular jacks at the upper right corner, used for connecting phone lines, door intercoms, door openers, music, and a paging amplifier.
  • There is a 25-pair male "Amphenol"-type connector below the modular jacks for connecting the wires going to your phones.
  • We STRONGLY recommend that you install surge protectors for the AC power line, and each phone line.
  • The connections for lines (NEC calls them "trunks") and phones ("extensions") are shown below:
  • This page is just for basic information. PLEASE read the manuals that come with your system.
Modular Jack Connections

Jack
A
pins 1 & 6 not used
pins 2 & 5 music in
pins 3 & 4 paging out
 

Jack
 D
pins 1 & 6 not used
pins 2 & 5 not used
pins 3 & 4 power failure

Jack
 B
pins 1 & 6 not used
pins 2 & 5 door relay #1
pins 3 & 4 door intercom #1
 

Jack
 E
pins 1 & 6 not used
pins 2 & 5 door relay #2
pins 3 & 4 door intercom #2

Jack
C
pins 1 & 6 line #3
pins 2 & 5 line #2
pins 3 & 4 line #1
 

Jack
 F
pins 1 & 6 line #6
pins 2 & 5 line #5
pins 3 & 4 line #4
25-Pair Connections
  • Below the six modular jacks, is a 25-pair male "Amphenol" connector, used for connecting the wires going to your phones.
  • You will need a 66-type punch-down block with an attached 25-pair cable and female connector, or a patch panel.
  • The first 32 rows are used for 16 multi-line digital phones. One pair of wires is used for each phone. The DS1000 supports just 16 digital phones, unless you install the optional 80221 expansion module.
  • Rows 33 through 48 are used for 8 single-line analog phones or devices, such as faxes or credit card terminals. One pair of wires is used for each phone. The DS1000 supports just 8 analog phones, unless you install the optional 80221 expansion module.
  • Rows 49 and 50 are not used.
  • Your phones' intercom numbers start with 300, and can be changed. Normally, 300 through 315 are multi-line digital phones, and 316 through 323 are single-line analog phones and devices.
Cable and punch-down block reference
Base color/
Stripe color		 Polarity
(Tip is
Positive)		 Pair # Pin #s in
25-pair
"Amphenol"
Connector		 Row #s in
66 or 110
Punch-down
Block

NEC
DS1000
Intercom
Number
White/Blue
Blue/White		 Tip 1
Ring 1		 Pair 1 26
1		 1
2		 300
White/Orange
Orange/White		 Tip 2
Ring 2		 Pair 2 27
2		 3
4		 301
White/Green
Green/White		 Tip 3
Ring 3		 Pair 3 28
3		 5
6		 302
White/Brown
Brown/White		 Tip 4
Ring 4		 Pair 4 29
4		 7
8		 303
White/Slate
Slate/White		 Tip 5
Ring 5		 Pair 5 30
5		 9
10		 304
Red/Blue
Blue/Red 		Tip 6
Ring 6		 Pair 6 31
6		 11
12		 305
Red/Orange
Orange/Red		 Tip 7
Ring 7		 Pair 7 32
7		 13
14		 306
Red/Green
Green/Red		 Tip 8
Ring 8		 Pair 8 33
8		 15
16		 307
Red/Brown
Brown/Red		 Tip 9
Ring 9		 Pair 9 34
9		 17
18		 308
Red/Slate
Slate/Red		 Tip 10
Ring 10		 Pair 10 35
10		 19
20		 309
Black/Blue
Blue/Black		 Tip 11
Ring 11		 Pair 11 36
11		 21
22		 310
Black/Orange
Orange/Black		 Tip 12
Ring 12		 Pair 12 37
12		 23
24		 311
Black/Green
Green/Black		 Tip 13
Ring 13		 Pair 13 38
13		 25
26		 312
Black/Brown
Brown/Black		 Tip 14
Ring 14		 Pair 14 39
14		 27
28		 313
Black/Slate
Slate/Black		 Tip 15
Ring 15		 Pair 15 40
15		 29
30		 314
Yellow/Blue
Blue/Yellow		 Tip 16
Ring 16		 Pair 16 41
16		 31
32		 315
Yellow/Orange
Orange/Yellow		 Tip 17
Ring 17		 Pair 17 42
17		 33
34		 316
Yellow/Green
Green/Yellow		 Tip 18
Ring 18		 Pair 18 43
18		 35
36		 317
Yellow/Brown
Brown/Yellow		 Tip 19
Ring 19		 Pair 19 44
19		 37
38		 318
Yellow/Slate
Slate/Yellow		 Tip 20
Ring 20		 Pair 20 45
20		 39
40		 319
Violet/Blue
Blue/Violet		 Tip 21
Ring 21		 Pair 21 46
21		 41
42		 320
Violet/Orange
Orange/Violet		 Tip 22
Ring 22		 Pair 22 47
22		 43
44		 321
Violet/Green
Green/Violet		 Tip 23
Ring 23		 Pair 23 48
23		 45
46		 322
Violet/Brown
Brown/Violet		 Tip 24
Ring 24		 Pair 24 49
24		 47
48		 323
Violet/Slate
Slate/Violet		 Tip 25
Ring 25		 Pair 25 50
25		 49
50		 not
used