NEC DS1000 User Manual

The Extension Block
DS1000 Hardware Manual Section 2: Trunk and Extension Cabling ◆ 2-3
2
The Extension Block
Installing the Extension Block
To connect the extension block (Figure 2-4):
1. Arrange your extension and cross-connect blocks according to the Installation Layout (Figure 2-1).
2. Following the illustration below, punch down a standard 25-pair cable on the extension block.
This cable should have a female amphenol 50-pin connector on one end and be unterminated
on the other.
Figure 2-4: Extension Assignments
WHT-BLU
BLU-WHT
WHT-ORN
ORN-WHT
WHT-GRN
GRN-WHT
WHT-BRN
BRN-WHT
WHT-SLT
SLT-WHT
RED-BLU
BLU-RED
RED-ORN
ORN-RED
RED-GRN
GRN-RED
RED-BRN
BRN-RED
RED-SLT
SLT-RED
BLK-BLU
BLU-BLK
BLK-ORN
ORN-BLK
BLK-GRN
GRN-BLK
BLK-BRN
BRN-BLK
BLK-SLT
SLT-BLK
YEL-BLU
BLU-YEL
YEL-ORN
ORN-YEL
YEL-GRN
GRN-YEL
YEL-BRN
BRN-YEL
YEL-SLT
SLT-YEL
VIO-BLU
BLU-VIO
VIO-ORN
ORN-VIO
VIO-GRN
GRN-VIO
VIO-BRN
BRN-VIO
VIO-SLT
SLT-VIO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
26
1
27
2
28
3
29
4
30
5
31
6
32
7
33
8
34
9
35
10
36
11
37
12
38
13
39
14
40
15
41
16
42
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25
300 T
300 R
301 T
301 R
302 T
302 R
303 T
303 R
304 T
304 R
305 T
305 R
306 T
306 R
307 T
307 R
308 T
308 R
309 T
309 R
310 T
310 R
311 T
311 R
312 T
312 R
313 T
313 R
314 T
314 R
315 T
315 R
316 T
316 R
317 T
317 R
318 T
318 R
319 T
319 R
320 T
320 R
321 T
321 R
322 T
322 R
323 T
323 R
NC
NC
BLOCK
TERM
25-PAIR CABLE
COLOR
CODE
FUNCTION
CONN
PIN
DIGITAL EXTENSIONS
300-307 (BASE)
DIGITAL EXTENSIONS
308-315 (EXPANSION)
ANALOG EXTENSIONS
320-323
(EXPANSION)
ANALOG EXTENSIONS
316-319
(BASE)
80200 - 5
Extension Assignments

NEC DS1000 Specifications

General

Brand	NEC
Model	DS1000
Category	Telephone
Language	English