RZX-3 Products
Digital Signal Cross-Connect (DSX-3)
Rear Cross-Connect System
RZX-3 Products
Table of Content
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RZX-3 Products
Introduction
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
RZX-3 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Modules
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Individual Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Module Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chassis
Loaded Chassis
24 Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
32 Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Unloaded Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pre-Terminated Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pre-Terminated Jack Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
System Lineup
Rear Cross-Connect System Lineups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-12
Skeleton Bays
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Rear Cross-Connect Skeleton Bay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4R Rear Cross-Connect Skeleton Bay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Rack Hardware and Accessories
Jumper Ring Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Introduction
At ADC, we set the standards the industry follows. This is no more evident than with the introduction of
our new RZX-3 (Reduced Si
Z
e DSX-3). No one packs more jacks, performance, flexibility, and durability into
DSX than ADC’s new RZX-3. In fact, with the possibility of 448 midsize jack ports utilizing BNC connector
interfaces in a 7-foot rack, the new RZX-3 has more capacity than any other midsize DSX in the world.
With greater density, unparalleled robustness, unrivaled modularity, diagnostic superiority, simplified restoral
capabilities and the only solution available with modular pre-termination, you’ll find that ADC leads the way.
Again, RZX-3 sets the new standard.
A System Solution
RZX-3 is designed as a total system solution – not just components. Focused on simplifying the solution,
the system approach provides ease of expansion, streamlines cross-connect jumper installation and reduces
premature jumper exhaustion. And with one part-number ordering, your engineering, purchasing and
installation labor is greatly reduced.
Standard system features include what’s most important to your success. RZX-3 is the ultimate in density.
The 4” chassis contains up to 32 circuit frames in a 19” width offering greater density than any other mid-
size jack interface in the industry. RZX-3 continues ADC’s tradition as the industry leader in cable manage-
ment. Designing the RZX-3 system with a rear adjustable cable tray, you’re prepared to accommodate maxi-
mum cable density. Permanent equipment connections have been recessed to allow the quick identifiable
access to semi-permanent cross-connect BNCs. And, with its “plug and play” architecture, the RZX-3 system
is fully modular throughout chassis, circuit frames and jacks. Individual BNC circuit frames remove easily
from the chassis providing the most simplified and cost-effective restoral capabilities available.
Built for Reliability
Our robust DSX jack design is constructed with mechanical support to ensure lifetime service, not by a sol-
der type connection on a printed circuit board. ADC’s highly durable BNC is standard in the RZX-3 system.
Its solid cylinder design has a closed entry contact to prevent spring contact overstress. We don’t use
Teflon insulators, ensuring true 75 ohm impedance. RZX-3’s sealed jack has firewall protection preventing
environmental contaminants from disturbing switch contacts. Add to all this ADC’s proven “make-before-
break” switching design. Make-before-break contacts ensure that high speed signals never go open or un-

Applications
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RZX-3 Products
OUT
IN
DSX-3
EQUIPMENT
CABLE
Max. 225' (735) coax
Network
Element A
Tx OUT
OUT OUT
IN
IN
Rx IN
X-OUT
X-IN
M
O
I
DSX-3
EQUIPMENT
CABLE
Max. 225' (735) coax
Network
Element B
Tx OUT

This high density Digital System Cross-Connect (DSX) provides cable termination, jack access and cross-con-
nect functions in a coaxial based broadband network to form a centralized cross-connect (distribution frame)
for digital signals. Designed to be transparent in the digital hierarchy, DSX equipment permits temporary
jack access, cross-connection, reconfiguration and restoration of various digital circuits. Internal jack circuits
provide input/output connections to each digital signal level source.
Each Network Element (NE) is permanently cabled to a separate DSX-3 module. Any NE may be connected
to any other NE in a non-dedicated manner by means of a semi-permanent cross-connect jumper placed
between two DSX-3 modules. The cross-connect jumper allows flexibility for network reconfiguration in the
future. LEDs at each DSX module identify both NEs that are cross-connected together. Digital signals are
accessed through the IN, OUT and MONITOR jacks at each DSX module for testing and patching operations.
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RZX-3 Products
Modules
3 Port Module
The 3 port module provides IN and OUT switching jacks for direct access to the network element’s input and out-
put signals, and a single MONITOR jack connected to the OUT jack for non-intrusive access to the network ele-
ment’s output signal.
4 Port Module
The 4 port module provides IN and OUT switching jacks for direct access to the network element’s input and out-
put signals. DUAL MONITOR jacks allow monitoring both directions of transmission at a single module location.
6 Port Module
The 6 port module provides IN and OUT switching jacks for direct access to the network element’s input and out-
put signals. DUAL MONITOR jacks allow monitoring both directions of transmission at a single module location. In
addition to these four jacks, the 6 port module provides auxiliary X-IN and X-OUT switching jacks that access
toward the cross-connect. These additional access ports are especially helpful when the other end of the cross-
connect is physically located at a great distance (such as another room or floor) or when access to the other end
is restricted (such as the collocation of two different service providers).
Pre-Termination Option

X-OUT
OUT
IN
X-IN
FRONT
JACK ACCESS
REAR CROSS-
CONNECTIONS
(BNC)
REAR
EQUIPMENT
CONNECTIONS
(BNC)
93.1
464
75
75
MON
OUT
X-OUT
OUT
MON
IN
X-IN
IN
X-OUT
OUT
IN
X-IN
FRONT

IN
93.1
464
75
75
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RZX-3 Products
Modules
Module Kits
Individual Modules
Module Type
3 Port Module
4 Port Module
6 Port Module
Odd Chassis Positions
(BNC High)
Catalog Number
DSX-4R-MB130
DSX-4R-MB140
DSX-4R-MB160
DSX-4R modules have rear BNC connectors staggered high and low across the chassis in order to obtain the
ultimate in system density. Modules may be ordered individually or in multi-pack kits.
3 Port Module
4 Port Module
6 Port Module
Module Rear View
Even Chassis Positions
(BNC Low)

(12 odd, 12 even
positions)
Catalog Number
DSX-4R-MB30-24
DSX-4R-MB40-24
DSX-4R-MB60-24
Kit of 32
Modules
(16 odd, 16 even
positions)
Catalog Number
DSX-4R-MB30-32
DSX-4R-MB40-32
DSX-4R-MB60-32
Ordering Information
Ordering Information
Chassis
Loaded
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RZX-3 Products
24 Position
Module Type
3 Port Module
4 Port Module
6 Port Module
Chassis with
Front LED
Catalog Number

DSX4R-32MB40-D32
DSX4R-32MB60-D32
Jumper rings are sold separately. See pages 13-16 for jumper ring kits and skeleton bays with cable management and fuse panel.
BNC insertion/withdrawal tool (BT2000) is recommended to install and remove BNC connectors.
Ordering Information
Ordering Information
Jumper rings are sold separately. See pages 13-16 for jumper ring kits and skeleton bays with cable management and fuse panel.
BNC insertion/withdrawal tool (BT2000) is recommended to install and remove BNC connectors because of extreme high density.
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RZX-3 Products
Chassis
Unloaded
Description
24 Position
32 Position
Chassis with
Front LED
Catalog Number
DSX4R-C24
DSX4R-C32
Chassis with
Front and Rear LED
Catalog Number
DSX4R-D24
DSX4R-D32
32 Position Unloaded Chassis
Front View
32 Position Unloaded Chassis

network elements to be cabled to the DSX without
deploying the DSX jacks. This feature allows the
cost of jacks to be deferred until revenue is gener-
ated by service demand.
Each position of the pre-termination chassis is
equipped with a circuit frame including BNC recep-
tacles. Network elements are cabled during initial
installation. When service turn-up is required, a
jack kit is plugged into the circuit frame to com-
plete the circuit and provide jack access for testing
and patching.
Jumper rings are sold separately. See pages 13-16 for jumper ring kits and skeleton bays with cable management and fuse panel.
BNC insertion/withdrawal tool (BT2000) is recommended to install and remove BNC connectors because of extreme high density.
Ordering Information
32 Position Pre-terminated Chassis
Loaded with Circuit Frames - Front View
32 Position Pre-terminated Chassis
Loaded with Circuit Frames - Rear View
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RZX-3 Products
Jack Kits
Pre-Terminated
Module Type
3 Port Jack Kit
4 Port Jack Kit
6 Port Jack Kit
Catalog Number
DSX-4R-M30