The Extension Block; Installing The Extension Block - NEC DS1000 Operation Manual

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