Specifications

Chapter 6 TR-08 Option
6-13
15 15 Slate/Black Ring 6 6 Blue/Red Ring
40 Black/Slate Tip 31 Red/Blue Tip
16 16 Blue/Yellow Ring 8 8 Green/Red Ring
41 Yellow/Blue Tip 33 Red/Green Tip
17 17 Orange/Yellow Ring 10 10 Slate/Red Ring
42 Yellow/Orange Tip 35 Red/Slate Tip
18 18 Green/Yellow Ring 12 12 Orange/Black Ring
43 Yellow/Green Tip 37 Black/Orange Tip
19 19 Brown/Yellow Ring 14 14 Brown/Black Ring
44 Yellow/Brown Tip 39 Black/Brown Tip
20 20 Slate/Yellow Ring 16 16 Blue/Yellow Ring
45 Yellow/Slate Tip 41 Yellow/Blue Tip
21 21 Blue/Violet Ring 18 18 Green/Yellow Ring
46 Violet/Blue Tip 43 Yellow/Green Tip
22 22 Orange/Violet Ring 20 20 Slate/Yellow Ring
47 Violet/Orange Tip 45 Yellow/Slate Tip
23 23 Green/Violet Ring 22 22 Orange/Violet Ring
48 Violet/Green Tip 47 Violet/Orange Tip
24 24 Brown/Violet Ring 24 24 Brown/Violet Ring
49 Violet/Brown Tip 49 Violet/Brown Tip
25 25 Slate/Violet Ring 25 25 Slate/Violet Ring
50 Violet/Slate Tip 50 Violet/Slate Tip
SPECIFICATIONS AND STANDARDS COMPLIANCE
This TR-08 implementation adheres to an applicable subset of Bellcore Technical Reference TR-
TSY-000008 “Digital Interface Between the Subscriber Loop Carrier 96 (SLC-96) Digital Loop
Carrier System and a Local Digital Switch (LDS)”, Issue 2 of August 1987, Revision 1 of
September 1993, and Bulletin 1 of October 1993.
For information regarding the analog card interfaces or the Access Bank I, please refer to CAC
Access Bank I product specifications and card descriptions.
TR-08 SIGNALLING STATES
Table 7-4 shows the signalling bits employed between the RT and the LDS for Single Party
Ringing (SPR) and Universal Voice Grade (UVG) channel units. Please note the differences
between these signalling states and D4/ESF signalling states equipped with FXS channel units.