1001 - Fuse Mounting 4001

20 pair glass fused MDF block. Originally supplied with a metal can that covered the block. Pairs are wrapped and soldered.

1003 - Gate Type 4028

20 pair gate type MDF block. Originally supplied with a metal can that covered the block

1005 - Fuse Mounting 8064

40 pair wire wrap MDF block

1006 - Fuse Mounting 10064

50 pair wire wrap MDF block

1007 - Jack Test 37- 39

100 Pair wire wrap MDF Block. This block has several variants.

1. Fuse module on the face of the block with GTDs.

2. Hinged

1009 - Jacks Test 44 - 49

100 pair IDC white MDF block, made by Porta Systems. This is currently the most modern MDF block on a BT frame.

1008 - Tie Block 170/10A

This block is normally used for junction or tie cables.