Can also be used to change a BT77a or BT80a into a BT78a.
5x BT 78A 4 Pair 8 Way IDC Internal Telephone Cable Junction Connection Box
10x BT 78A 4 Pair 8 Way IDC Internal Telephone Cable Junction Connection Box
BT 78A 4 Pair 8 Way IDC Internal Telephone Cable Junction Connection Box BT78A
8x BT 78A 4 Pair 8 Way IDC Internal Telephone Cable Junction Connection Box
BT 77A 3 Pair 6 Way IDC Telephone Cable Junction Box BT77A Replacement Board
