R700A66B125
25-Pair NID Block
Key Features
•Connectorized customer premise
interface speeds installation and
lowers labor costs
•Shorting plug maintains circuit
continuity when registered devices
are not connected
•Universal hold-down keeps
connectorized RJ21s mated
•Orange hinged cover mechanically
protects the face of the block,
provides marking space for
individual pair assignments, and
quickly identifies the unit as a
demarcation interface between
the central office and customer
premises equipment
•Optional orange metal backboard
allows for faster, easier installation,
presents a cleaner appearance, and
gives immediate identification of
the unit as a demarcation
interface
•UL Listed to meet or exceed
documented performance levels
Outside Plant for
Business-Critical Continuity
Description
The R700A66B125 25-pair network interface demarcation (NID) block consists of a connectorized quick-clip block mounted on an 89-type stand-off bracket (Emerson R891
Series). The quick-clip block used is an R66M150X wired to either a receptacle or plug 50position RJ21 connector. The connector is located on the lower right side of the stand-off
bracket, and is equipped with a universal hold-down.
Columns A and B are common, and columns C and D are common. Network pairs are
punched down on column A. Customer premises equipment pairs are installed upon
mating of the RJ21 connector. Columns B and C are bridged using two-terminal bridging
clips (purchased separately as Emerson RA1), which completes the circuit. Removal of the
bridging clip isolates that pair, allowing testing without disconnection of the RJ21 connector.
Unstripped solid 20- to 26-gauge (.4 to .8 mm) conductors can be easily terminated using
an industry standard 714-type punch-down tool (Emerson R714B). Each block is supplied
with an integral fanning strip molded on both sides of the block, notched every ten rows
to simplify pair identification. The RJ21 connector has a dust cover attached to prevent
connector contamination during shipment and/or storage.
Each block is supplied with an orange hinged cover for marking and pair identification.
The R700A66B125 may also be ordered with a factory-installed orange metal backboard
(10" H x 8.5" W x 50" D), for immediate identification of the block as a demarcation interface.
Application
25-pair R700A66B125 blocks are used in telephone equipment rooms where a network
interface demarcation block is required.
OSPDS-071100 / 0605
R700A66B125 25-Pair NID Block
Section XX of Top View
Clip Configuration
Top View (Pair Position and Tip/Ring Position - Double Clip)
Plug Connecting Face
(Mating Receptacle Cable Stub Down)
Connector Position M (Receptacle Shown)
Ordering Information
Catalog
Number
Part
Number
Description (25-Pair NID)
R700A66B125
F015295
Orange hinged cover, (1) RJ21 receptacle connector
R700A66B125M
F015252
Orange hinged cover, (1) RJ21 plug connector
R700A66B125B
F015239
Receptacle Connecting Face
(Mating Plug Cable Stub Up)
Emerson Network Power.
The global leader in enabling businesscritical continuity.
Emerson Network Power
Energy Systems
4350 Weaver Parkway, Warrenville, IL 60555
Toll Free: 800-800-1280 (USA and Canada)
Telephone: 440-246-6999 Fax: 440-246-4876
www.EmersonNetworkPower.com/EnergySystems Orange hinged cover, (1) RJ21 receptacle connector
w/orange metal backboard (R183C6)
NOTE: For brackets, covers, bridging clips, etc. see the Accessories section of this catalog.
•
•
•
•
AC Power Systems
Connectivity
DC Power Systems
Embedded Computing
•
•
•
Embedded Power
Integrated Cabinet Solutions
Outside Plant
Power Switching & Control
•
•
•
•
Precision Cooling
Services
Site Monitoring
Surge Protection
© 2006 Emerson Network Power Energy Systems,
North America, Inc. All rights reserved.
The Emerson logo is a trademark and a service mark
of Emerson Electric Co. Emerson Network Power is a division
of Emerson Electric Co.
Printed in USA
OSPDS-071100 / 0605