ADC 75 Ohm Interconnect User Manual

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Digital Monitor Module System

75 Ohm Interconnect

SPEC SHEET

Designed as a flexible solution for network signal management, ADC’s Digital Monitor Module (DMM) system provides a centralized coaxial termination and interconnection point between network elements (NE). The DMM system allows a permanent, dedicated connection between two NEs while providing dual, nonintrusive test access points for bidirectional monitoring of the network signal. Ensuring unsurpassed quality, this interconnect solution features cable management designed to increase reliability, maintain signal flow, and allow easy cable identification. To enhance network flexibility, the DMM system allows modules to be installed in a chassis as network requirements increase.

Features:

Provides bidirectional, nonintrusive signal testing

Supports E1 (2.048 Mbps), E3 (34.368 Mbps), or STM-1(155.52 Mbps) signal rate applications

Modular design allows for capital investment to coincide with revenue growth

Mounts in standard 600 mm bays

Quality cable management and circuit identification markings

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Digital Monitor Module System

75 Ohm Interconnect

Application

The DMM system is used primarily in co-locationenvironments, DDF locations, and customer premises as a connection point between NEs. Each NE is semipermanently cabled to IN/OUT connectors in either the front or rear of each module. The digital signal is accessed through the two MON OUT connectors on the front of each module for testing and monitoring. These dual monitor ports allow access to both directions of the circuit from a single location. This saves valuable technician time when the other side of the termination is located far away, in another room, or is inaccessible.

 

Network

 

 

 

 

 

 

Network

Element A

DMM

 

Element Z

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MON

 

 

 

OUT

Tx OUT

 

 

 

 

 

 

 

IN

 

 

 

 

 

Z-OUT

 

 

Rx IN

 

 

 

 

 

 

 

 

 

 

 

 

 

Tx OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

Rx IN

 

 

 

 

 

 

IN

 

 

 

 

 

MON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A-OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Test

Unit

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Digital Monitor Module System

75 Ohm Interconnect

Configurations

The DMM system is available in several chassis and rack configurations to create a customized interconnect solution. Each module is ordered separately and may be installed in any DMM chassis or rack configuration as the network expands, allowing capital investment to coincide with revenue growth.

Modules

Multiple connector interface types and locations are available to complement existing network designs. Individual modules allow chassis to easily match existing NE circuit counts.

Standard Configuration

Up to 12, 24-positionchassis are designed to mount in a standard 600 mm rack for a total of 288 circuits. Cable management bars, trays, and labeling are provided on each chassis.

High-DensityConfiguration

This uniquely designed dual chassis features two separate compartments, each accommodating up to

eight modules mounted horizontally. The two compact compartments are mounted side-by-sidein a specially designeddual-column600 mm rack. Thishigh-densityconfiguration allows a total of 352 circuits in one rack. Cable management bars and four vertical cabling ducts ensure proper routing forhigh-densitycabling.

Wall-MountBox

This six-positionenclosure serves as an interconnect demarcation point between network providers and customers. Separate locks on each door secure connections from unwanted access.

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Digital Monitor Module System

75 Ohm Interconnect

Modules

Features:

Front, dual monitor ports on all module styles

BNC or 1.6/5.6 connectors provide true 75 Ohm characteristic impedance

All module styles are compatable with any DMM 600 mm chassis style

O r d e r i n g I n f o r m a t i o n

Description

IN/OUT Connector Locations

Catalog Number

 

 

 

BNC

Rear

DMM-BBNCMF

 

 

 

BNC

Front and Rear

DMM-BBNCF

 

 

 

BNC Bulkhead

Front and Rear

DMM-BNCBLK

 

 

 

1.6/5.6

Rear

DMM-1656MF

 

 

 

1.6/5.6

Front and Rear

DMM-1656F

 

 

 

1.6/5.6 Bulkhead

Front and Rear

DMM-1656BLK

 

 

 

Blank

None

DMM-BLANK

 

 

 

DMM-BBNCMF

DMM-BBNCF

DMM-BNCBLK

Rear and Front View

Rear and Front View

Rear and Front View

DMM-1656MF

DMM-1656F

DMM-1656BLK

Rear and Front View

Rear and Front View

Rear and Front View

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Digital Monitor Module System

75 Ohm Interconnect

Standard Configuration

Features:

288 total circuits in fully loaded bay

Cable bars and front cable trays, with cable tie-downs,reduce cable congestion and simplify maintenance

Circuit designation labels above connectors and on cable tray ensure proper cable routing and identification

Bay equipped with cable troughs, vertical wiring ducts, and

equipment cable tie-downbars

D3C-0024T

• Zone 4 earthquake-ratedrack with EIA mounting spacing

Front View

O r d e r i n g I n f o r m a t i o n

Description

Dimensions (HxWxD)

Ordering Number

 

 

 

Unloaded Chassis

113 x 482.6 x 228.6 mm

D3C-0024T

accomodates up to 24 modules

(4.4" x 19" x 9")

 

 

 

 

600 mm Skeleton Bay

2200 x 600 x 475 mm

IBR-D3C001

accomodates up to 12 modules

(86.6" x 23.6" x 18.7")

 

 

 

 

600 mm [23.6]

449.6 mm

[17.7]

UPPER CABLE

TROUGH

45

RESERVED FOR

MISCELLANEOUS APPLICATIONS

40

35

30

25

2200 mm [86.6]

20

15

10

LOWER CABLE

TROUGH

5

1

475 mm (18.7")

IBR-D3002

Front View IBR-D3002

Side View

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Digital Monitor Module System

75 Ohm Interconnect

High-DensityConfiguration

Features:

Improved circuit density by 20%; 352 circuits in fully loaded bay

Cable bars reduce cable congestion and simplify maintenance

Circuit designation label door ensures proper cable routing and identification

Bay equipped with four vertical cabling channels, cable troughs, and equipment cable tie-downbars for high density cable management

Zone 4 earthquake-ratedequal-flangerack with EIA mounting spacing

D3C-0016HD

Front View

O r d e r i n g I n f o r m a t i o n

Description

Dimensions (HxWxD)

Ordering Number

 

 

 

Unloaded Pair of Dual Chassis

88 x 236 x 165 mm

D3C-0016HD

accomodates up to 16 modules in two, eight-positionchassis

(3.5" x 9.3" x 6.5")

 

 

 

 

600 mm Dual Skeleton Bay

2200 x 600 x 250 mm

IBC-D3C001

accomodates up to 11 dual chassis

(86.7" x 23.6" x 23.6")

 

 

 

 

IBC-D3001

IBC-D3001

Front View

Side View

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Digital Monitor Module System

75 Ohm Interconnect

Wall-MountBox

Features:

Used as a demarcation point when NEs are supplied by the service provider and by the customer premises

Seperate locks on each door secure connections from unwanted access

 

 

D3C-WBOX06

 

 

Front View

O r d e r i n g I n f o r m a t i o n

 

 

 

 

 

Description

Dimensions (HxWxD)

Ordering Number

 

 

 

Unloaded Wall-MountBox

267 x 203 x 114 mm

D3C-WBOX06

accomodates up to 6 modules

(10.5" x 8" x 4.5")

 

 

 

 

Note: Modules are ordered seperately

 

 

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Specifications

ELECTRICAL

 

Insertion Loss

Better than -.5dB, 100 KHz to 100 MHz

 

Better than -.8dB, 100 MHz to 300 MHz

Return Loss:

Better than -20dB, 100 KHz to 300 MHz

Monitor Loading Effect:

< .4 dB change in insertion loss to 300 MHz

Monitor Level:

21.5 ± 1.5 dB, 100 KHz to 300 MHz

Isolation:

< -55dB at 22.368 MHz

Cross Talk:

< -55dB at 22.368 MHz

Phase Delay

< 4 nanoseconds to 300 MHz

Pulse Template:

Conform to CCITT Recomm. G.703

MECHANICAL

 

Retention Force:

7 lbs. minimum

Retention Torque:

4" per lbs. minimum

ENVIRONMENTAL

 

Thermal Shock:

-40ºCto +60ºC operating

 

-55ºCto +85ºCnon-operating

Moisture Resistance:

0% to 95%

SPEC SHEET

Web Site: www.adc.com

From North America, Call Toll Free: 1-800-366-3891• Outside of North America:+1-952-938-8080Fax:+1-952-917-3237• For a listing of ADC’s global sales office locations, please refer to our web site.

ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, Minnesota USA 55440-1101

Specifications published here are current as of the date of publication of this document. Because we are continuously improving our products, ADC reserves the right to change specifications without prior notice. At any time, you may verify product specifications by contacting our headquarters office in Minneapolis. ADC Telecommunications, Inc. views its patent portfolio as an important corporate asset and vigorously enforces its patents. Products orfeatures contained herein may be covered by one or more U.S. or foreign patents. An Equal Opportunity Employer

103978AE 12/06 Revision © 2002, 2006 ADC Telecommunications, Inc. All Rights Reserved