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The binding post block used in the RA is the 145B. The binding posts can be random access (technician
chooses a free binding post) or in some cases, dedicated. When dedicated, the technician is told by
assignment which binding post to use.
The binding posts are connected to the cable pairs with fuse links, shown here. The standard termination
connector is the
Scotchlok
.
Terminals: SLIC
The current company standard terminal for plastic insulated cable is the SLIC terminal.
The SLIC contains binding post blocks that allow the terminal to be expanded from the standard 10 customers
to a maximum of 25 using 5, 10 and 25 pair blocks.
Figure 30: SLIC Terminals
1.4.2 Binding post blocks
Binding posts are used to connect a drop to the assigned cable pair through a fuse link. This provides an easy
point for opening the circuits for the purposes of isolation testing.
There are 3 primary terminal binding post styles used are:
1. 145B block
This block is obsolete, and may only be used in rural areas without HSIA.
2. Tii 67-2 IDC block
This block is designed to replace the 145B block. It has an IDC connector, so it provides a superior electrical
connection between 22 – 26 gauge drop wire, the fuse link and the cable pair.
This block must be used with all xDSL installations or repairs where the customer’s service comes from an RA
or other 145B equipped terminal.
3. SLIC terminal block
The block used for the SLIC terminal comes in 3 configurations: 5, 10 and 25 pairs. The binding posts are
Insulation Displacement style connectors (IDC).