CAC/Siecor Cross Connect Boxes Cross Reference Guide
Terminal Block configurations for CAC/Siecor Cross Connect boxes (Products discontinued in 1993)
Terminal Block Sizes vary with respect to which cabinet was used and were made up with either a single block or a combination of blocks.
A BD box is typically a Western Electric BD cross box. A SAC box is any cross box feeding a serving area. It could be a Western Electric BD, Self-strip, 3M Punchdown, or any other type of cross box. Another term used is SAI.
SAC = Serving Area Cross connect
SAI = Serving Area Interface
| Cabinet Type | Cabinet Name | Cabinet Pair Count | Block Pair Count | No. of Pairs across | Remarks | TAP Shoe P/N |
| Pole Mount | BH or BJ | 100,200,300 & 400 prs | 50 prs | 10 | One block = 50 prs | TP1112 |
| Pole Mount | BH or BJ | 600 & 900 prs | 75 prs | 15 | One block = 75 prs | TP1089 |
| Pole Mount | BH or BJ | 1200,1500 & 1800 prs | 100 prs | 20 | Split blks. (2- 50 pr. blks) | TP1090 |
| Pole Mount | BH or BJ | 2700 prs | 125 prs | 25 | Split blks. ( 1 ea. 50 +75 pr blk.) | Unknown |
| Pad Mount | SAC Box | 900,1200,1500 & 1800 prs. | 50 prs | 10 | Split blks. (2- 25 pr. blks.) | TP1118 |
| Pad Mount | SAC Box | 2100,2400 & 2700 prs. | 75 prs. | 15 | Split blks. ( 3- 25 pr blks.) | TP1120 |
| Pad Mount | SAC Box | 3000 & 3600 prs. | 50 prs. | 10 | Split blks. ( 2 - 25 pr blks.) | TP1118 |
| Pad Mount | SAC Box | 5400 prs. | 75 prs. | 15 | Split Blks. ( 3- 25 pr blks.) | TP1120 |
| Pad Mount | BTS (New) | 200,400,600,900 & 1200 prs. | 50 prs. | 10 | Split blks. (2- 25 pr. blks.) | TP1118 |
| Pad Mount | BTS (New) | 1500 & 1800 prs | 75 prs. | 15 | Split blks. ( 3- 25 pr blks.) | TP1120 |
| Pad Mount | BTS Old Style | 200,400,600,900 & 1200 prs. | 50 prs | 10 | One block = 50 prs | TP1112 |
| Pad Mount | BTS Old Style | 1500 & 1800 prs. | 75 prs | 15 | One Block =75 prs | TP1089 |
| Product details for identification purposes: |
| BH/BJ -These are pole mount cross cabinets fabricated of un painted aluminum and galvanized steel.The cable stubs exited the cabinet from either the top or bottom or a combination of both. An aluminum ID tag was normally riveted to one of the doors and contained the product name and pair count. |
| SAC Cabinets - cabinets containing three terminal fields ( 600-5400 pairs) These cabinets are normally painted aluminum construction and are mounted to a concrete pad. The terminal fields are made up of 50 or 75 pair blocks with a space between each 25 pair block because the 25 pr blocks are actually made out of separate 25 pair blocks put together. An Aluminum ID tag is riveted on the front of the cabinet just below the cabinet doors. |
| BTS ( NEW) - cabinets containing either a single terminal field or two side by side fields in a parallel configuration with pair count of 200 to 1800 pairs. The word "NEW" designates that these cabinets were equipped with the same configuration of 25 pair blocks put together as described in the SAC series of cabinets. These cabinets have a rectangular aluminum ID tag riveted on to the front of the ground line base cover just below the cabinet doors. |
| BTS Old Style -These were pad mount cabinets with two terminal fields and made of the single block design like the pole mount cabinets, special tap shoe screws will have to be installed to accommodate the tap shoe attachment screws. CAI Mounting Screw Part #TP2106 |
| Note: Some of the very early "CAC" (Communications Apparatus Company) cabinets did not contain plastic molded terminal blocks. Instead they were equipped with a flat Phenolic board with brass terminals pressed into the board material. Front Tap Shoes may have never been designed for these old styles. |