NEC NEC-80570 User Guide - Page 19

The Extension Block 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. DIGITAL EXTENSIONS 300-307 (BASE) Extension Assignments 25-PAIR CABLE BLOCK COLOR TERM CODE FUNCTION 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 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 CONN PIN 26 1 27 2 28 3 29 4 30 5 31 6 32 7 33 8 DIGITAL EXTENSIONS 308-315 (EXPANSION) 17 RED-BRN 308 T 34 18 BRN-RED 308 R 9 19 RED-SLT 309 T 35 20 SLT-RED 309 R 10 21 BLK-BLU 310 T 36 22 BLU-BLK 310 R 11 23 BLK-ORN 311 T 37 24 ORN-BLK 311 R 12 25 BLK-GRN 312 T 38 26 GRN-BLK 312 R 13 27 BLK-BRN 313 T 39 28 BRN-BLK 313 R 14 29 BLK-SLT 314 T 40 30 SLT-BLK 314 R 15 31 YEL-BLU 315 T 41 32 BLU-YEL 315 R 16 33 YEL-ORN 316 T 42 34 ORN-YEL 316 R 17 35 YEL-GRN 317 T 43 36 GRN-YEL 317 R 18 37 YEL-BRN 318 T 44 38 BRN-YEL 318 R 19 39 YEL-SLT 319 T 45 40 SLT-YEL 319 R 20 41 VIO-BLU 320 T 46 42 BLU-VIO 320 R 21 43 VIO-ORN 321 T 47 44 ORN-VIO 321 R 22 45 VIO-GRN 322 T 48 46 GRN-VIO 322 R 23 47 VIO-BRN 323 T 49 48 BRN-VIO 323 R 24 49 VIO-SLT NC 50 50 SLT-VIO NC 25 80200 - 5 ANALOG EXTENSIONS 316-319 (BASE) ANALOG EXTENSIONS 320-323 (EXPANSION) Figure 2-4: Extension Assignments 2 DS1000 Hardware Manual Section 2: Trunk and Extension Cabling x 2-3