Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
85122 Series Subscriber Bridge
Features
Fits Bourns
Model 7004x, 7005, 7090
and 7091 NIDs
Optional sealed switching jack
Insulation Displacement Connectors
(IDCs) available
Environmentally sealed
Convenient test access
Simple installation
Listed per UL 497 (File: E53117)
Model 85122, 85122-T4 and 85122-T-IDC Subscriber Test Bridges
The Model 85122 (two-post) standard loop jack, 85122-T4 (four-post) and 85122-T-IDC with sealed switching jack can be used to add
lines to Bourns most popular Network Interface Devices (NIDs).
Model 85122 is a proven economical choice with standard RJ11 test jack and plug coated with environmental sealant.
Model 85122-T4 and 85122-T-IDC offer longer service life and reduced maintenance. The unique design of the Bourns feed through
RJ11 jack is designed to provide a significant improvement in trouble-free operation. The RJ switching receptacle is only used during
subscriber testing; in normal operation it remains sealed by closed-cell foam and is protected with an environmental sealant. This con-
figuration is designed to prevent moisture from causing faults at the jack. Since the subscribers don't need to disconnect the RJ11
plug, there is no possibility of them failing to reconnect the plug. The four binding posts on the Model 85122-T4 and the IDC in the
85122-T-IDC allow connection of Inside Wire (IW) home runs as needed.
Product Dimensions
REV B 04/06
UL
Model 85122-B and 85122-IDC Expansion Modules
Bourns
Model 85122-B utilizes four pairs of binding posts for multiple connections of IW.
Bourns
Model 85122-IDC features Insulation Displacement Connectors. When connected to one incoming twisted pair it allows up to
four additional IW to be deployed at the station. The IDC connectors are simple to use; untrimmed wire is inserted into the connector
and snapped down. There is no stripping or winding of the wires required. The IDC units contain environmental sealant designed to
provide weather-resistant connections.
GREEN WIRE
INSULATION DISPLACEMENT CONNECTOR
4 PLCS.
RED WIRE
1
2
T R
T R
T R
T R
3
4
85122-IDC
85122
85122-T4
85122-T-IDC
85122-B
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