Attaching Cables - AMX DGX1600-ENC Hardware Reference Manual

Avoiding Network (Ethernet) Loops
CAUTION: Be careful not to create a network (Ethernet) loop.
Only one connection to the Public LAN is permitted within a switching system with DXLink support.* Network loops must be
avoided. A network loop is created when the enclosure and one or more DXLink Modules or Wallplates within the system are
connected to the same Public LAN as the Enova DGX. The Enova DGX Switcher does not support STP (Spanning Tree Protocol).
* This applies to systems with DXLink Twisted Pair and/or DXLink Fiber Boards.
IMPORTANT: If DXLink Twisted Pair units are used in conjunction with DXLink Twisted Pair 4K units or DXLink Fiber units, all units'
guidelines must be followed.
Example
In the example in FIG. 46, a network loop was created when an Enova DGX 1600 was connected to a Public LAN and one of its
DXLink Transmitters was connected to the same LAN. The DXLink Transmitter needs to be disconnected from the LAN. The same
problem would also occur if an enclosure and one (or more) of its DXLink Receivers were connected to a common Public LAN.
Source device
DXLink TX
FIG. 46 Avoid network loops

Attaching Cables

Viewed from the rear of the enclosure, the input boards (for attaching sources) are on the left, and the output boards (for attaching
destinations) are on the right.
Enova DGX 800/1600 – Input and output channel numbers correspond to the connectors and are located between the input and
output boards. For inputs, numbering is consecutive from left to right on each board from the top board to the bottom one; outputs
start over at "1" and follow the same pattern.
Enova DGX 3200 – Input and output channel numbers correspond to the connectors and are located on the numbering plate (metal
strip) directly above the boards. For inputs, numbering is consecutive from top to bottom on each board from the left board to right
one; outputs start over at "1" and follow the same pattern.
Enova DGX 6400 – Input and output channel numbers correspond to the connectors and are located in the middle of the enclosure
between boards on either side. For inputs, numbering is consecutive from left to right on each board from the top input board on
the left to the bottom input board on the left, continuing on the top input board on the right to the bottom input board on the right.
Outputs are in the lower part of the enclosure, start over at "1" on the left, and follow the same pattern.
IMPORTANT: If the system has DXLink input and output connectors in use, we strongly recommend that the LAN 100/1000 port use
a connection speed of 1000 Mbps.
Important Twisted Pair Cabling Requirements and Recommendations
The following requirements and recommendations apply to cabling DXLink (RJ-45) connectors:
DXLink cable runs require shielded category cable (STP) of Cat6 (or better).

DXLink twisted pair cable runs for DXLink equipment shall only be run within a common building.**

DXLink delivers 10.2 Gb/s throughput over shielded category cable. Based on this bandwidth requirement, we recommend

following industry standard practices designed for 10 Gigabit Ethernet when designing and installing the cable
infrastructure.
The cables should be no longer than necessary to reach the end-points. We recommend terminating the cable to the actual

distance required rather than leaving any excess cable in a service loop.
For complete cable specifications, see the board's specifications.

** "Common building" is defined as: Where the walls of the structure(s) are physically connected and the structure(s) share a
single ground reference.
For more details and helpful cabling information, reference the white paper titled "Cabling for Success with DXLink" available at
www.amx.com or contact your AMX representative.
Hardware Reference Manual – Enova DGX 100 Series Digital Media Switchers
IMPORTANT: If you have questions or
LAN
concerns about network setup, consult with
Local Area Network
your network administrator about avoiding
network loops before connecting units.
Enova DGX 1600
LAN
connection
Enova DGX DXLink™ Twisted Pair Boards
Destination device
91