110-Type Hardware Description; 110-Type Wiring Blocks - AT&T System 75 Wiring Diagram

110-Type Hardware Description

The 110-type hardware consists of connectorized or field-terminated
terminal blocks in 100-, 300-, and 900-pair sizes. The 110-type terminal
blocks consist of the following parts:

110-type wiring blocks

Index strips
3-, 4-, and 5-pair connecting blocks.
110-Type Wiring Blocks
The 110-type wiring block (Figure 2-2) is a plastic wiring block equipped
with permanently attached index strips.
WIRING BLOCK
TERM
NO. 1
INDEX
STRIP
Figure 2-2. 110-Type Wiring Block
110-Type Hardware Description
DESIGNATION
INSERT
TERM
NO. 50
2-3