4
1.2
All terminal sizes contain the following features and components:
a) A short stub with one end pre-connectorized to a flame retardant 3M
™
MS
2™
modular connector or
a 3M
™
710 connector. The other end is pre-wired to the protector block.
b) Protector receptacle field
c) Self contained splice chamber
d) Strain relief components for the entrance cable
e) External 5 stud ground bar
f)
Internal insulated ground strap
g) Wall hanger bracket
h) Distribution field terminated to an IDC block
i)
Pair count log label
j)
Jumpering instructions
k) 3M
™
4327 Single Pair Test Probe
1.3
Terminal Wiring Schematic
Module
From C.O.
Protector
Self-Strip
Block
1.4
Terminal Dimensions
Model
Height
Width
Depth
4990-25
15.4"
17.5"
7.9"
4990-50
15.4"
17.5"
7.9"
4990-100
24.9"
17.5"
7.9"
4990-300
35.7"
27.6"
7.9"
2.0 Accessories
2.1
4990-SK Skirt - The 4990-SK skirt is used with the 25, 50, and 100 pair terminals when physical
protection of incoming cable is preferred or when a separate splice location below the terminal is desired.
2.2
4788-SKW Skirt - The 4788-SKW skirt is used with the 300 pair terminal when physical protection of
incoming cable is preferred or when a separate splice location below the terminal is desired.
2.3
4990-CLR Stacking Collar - The 4990-CLR stacking collar is used when stacking two or more 25, 50, or
100 pair terminals. Stacking 300 pair terminals is not recommended.
2.4
4990-WB Wall Bracket - The 4990-WB wall bracket is used for necessary clearance when the mounting
surface contains parallel (vertical or horizontal) obstructions; such as electrical conduits, pipes, drains, etc.
The 4788-WBW is used with the 300 pair terminal.