Mike's PBX Cookbook

Nortel Pin-map for Krone cross-connect system

In the Krone cross-connect system, one terminating strip holds 8 or 10 cable pairs. When cross-connecting a 25-pair cable on this system, eight terminating points are used on each strip. One 25-pair cable, therefore, occupies three terminating strips (blocks):

8 pairs per strip, x 3 strips = 24 pairs
krone 8 pair block

Krone 8 (or 10) pair blocks are punched as follows. 3 blocks are required per 25 pair cable.

Cable
Pair
Meridian Telco / Backplane pin out guide Krone
Row
Krone
Pair

1 Blue / White 26 White / Blue 1 1
2 Orange / White 27 White / Orange 2
3 Green / White 28 White / Green 3
4 Brown / White 29 White / Brown 4
5 Slate / White 30 White / Slate 5
6 Blue / Red 31 Red / Blue 6
7 Orange / Red 32 Red / Orange 7
8 Green / Red 33 Red / Green 8

9 Brown / Red 34 Red / Brown 2 1
10 Slate / Red 35 Red / Slate 2
11 Blue / Black 36 Black / Blue 3
12 Orange / Black 37 Black / Orange 4
13 Green / Black 38 Black / Green 5
14 Brown / Black 39 Black / Brown 6
15 Slate / Black 40 Black / Slate 7
16 Blue / Yellow 41 Yellow / Blue 8

17 Orange / Yellow 42 Yellow / Orange 3 1
18 Green / Yellow 43 Yellow / Green 2
19 Brown / Yellow 44 Yellow / Brown 3
20 Slate / Yellow 45 Yellow / Slate 4
21 Blue / Purple 46 Purple / Blue 5
22 Orange / Purple 47 Purple / Orange 6
23 Green / Purple 48 Purple / Green 7
24 Brown / Purple 49 Purple / Brown 8

25 Slate / Purple 50 Purple / Slate Spare Spare

Labels:

Terminating strips must be labeled if they contain wiring. The labels that attach to the terminating strips have two sides: the front side shows the card name and card number, and the reverse side (flip-upside) shows pair designations for that card.