Metra Electronics ELS NET User manual

Metra NET Network Installation Manual

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Metra NET Network - Installation Manual
Table of contents
Metra NET Network Installation Manual ................................................................................................ 4
Metra NET Network description ......................................................................................................... 4
Terminology ........................................................................................................................................ 5
Network installation products ............................................................................................................ 6
Network Splitter ............................................................................................................................. 6
Network Repeater 2 ....................................................................................................................... 6
Network Repeater 8 ....................................................................................................................... 6
Network Controller / Repeater Mounting Plate for 19’’ rack......................................................... 7
Network Terminator 120 ................................................................................................................ 7
Network Terminator 240 ................................................................................................................ 7
Emergency Open Push-Button ....................................................................................................... 7
Connecting cable for Metra Devices............................................................................................... 8
Mounting Network installation products............................................................................................ 8
Mounting Network Splitter............................................................................................................. 8
Mounting Network Repeater 2 to the Network Controller / Repeater Mounting Plate for 19’’
rack ................................................................................................................................................. 8
Mounting Network Repeater 8 to the Network Controller / Repeater Mounting Plate for 19’’
rack ................................................................................................................................................. 9
Mounting Network Controller TCP/IP to the Network Controller / Repeater Mounting Plate for
19’’ rack .......................................................................................................................................... 9
Mounting Network Controller NET to the Network Controller / Repeater Mounting Plate for 19’’
rack ............................................................................................................................................... 10
Metra NET Network .......................................................................................................................... 10
Metra NET Network termination.................................................................................................. 11
Network Repeater and Network Controller internal line termination......................................... 11
Maximum number of devices on “Metra NET Network”.................................................................. 12
Line topology..................................................................................................................................... 12
Simple ”V” topology......................................................................................................................... 12
Star topology –Using Network Repeater 2 ...................................................................................... 13
Star Topology - Two Network Repeaters 2................................................................................... 13
Star Topology - Three Network Repeaters 2 ................................................................................ 14
Star Topology - Four Network Repeaters 2 .................................................................................. 15
Star topology –Using Network Repeater 8 ...................................................................................... 16

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Metra NET Network - Installation Manual
Line topology –Using Master and Slave Network Controllers TCP/IP.............................................. 17
Network Lines longer than 1 km....................................................................................................... 17
2km Network ................................................................................................................................ 17
4km Network ................................................................................................................................ 18
Connecting Metra devices to “Metra NET Network” ....................................................................... 18
Metra device connection via additional Network Splitter ........................................................... 19
Metra device direct connection.................................................................................................... 20
UTP cable signals description for Metra NET Network..................................................................... 21
Different Metra NET Network connectors on Metra devices........................................................... 22
Phoenix MSTB 2,5/ 4-ST-5,08 connector...................................................................................... 22
Detachable connectors................................................................................................................. 22
WAGO 256 connectors ................................................................................................................. 23
UTP connector .............................................................................................................................. 23
Appendix ........................................................................................................................................... 24

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Metra NET Network - Installation Manual
Metra NET Network Installation Manual
Manufacturer:
Metra Inženiring d.o.o.
IOC Trzin
Špruha 19
SI-1236 Trzin, Slovenia
phone:
fax:
web:
[phone]
[phone]
www.metra.si
System:
Metra ELS NET, Metra LCC NET, Metra ELS
Declaration of Conformity:
The Metra ELS products have been developed, designed and
manufactured in accordance with the EU directive for Electromagnetic
Compatibility (2004/108/EC).
Metra NET Network - Installation Manual [rev.1-270810]
2010 Metra inženiring d.o.o.
All Rights reserved.
No part of this manual may be reproduced in any form or by any means without prior written permission of Metra inženiring d.o.o.
The contents of this manual are subject to change without notice.
All efforts have been made to ensure the accuracy of the contents of this manual, however, should any errors be detected, Metra inženiring would greatly appreciate being informed of
them.
Metra inženiring d.o.o. can assume no responsibility for any errors in this manual.
Metra NET Network description
“Metra NET network” is based on industry standard CAN bus networking system to interconnect
different Metra devices. Metra developed several installation devices to make network installation
on the field easy and reliable. Network Repeaters ensure longer maximum cable length and almost
any desirable network topology. Network Splitter supports standard UTP cabling widely used in
computer installations.

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Metra NET Network - Installation Manual
Terminology
CAN
Controller Area Network. Industry standard field bus networking system.
Metra NET Network
Industry standard CAN network that is used for interconnection of Metra
devices.
Network device
(Metra NET Device)
Device connected to Metra NET Network (for example: Door Access
Terminal, Reader Terminal, Tripod Turnstile, Locker Controller….).
Network Controller
Special purpose Metra device that converts signals and communication
protocol between Metra NET (CAN) and computer’s LAN network (TCP/IP).
Network Repeater
Device that amplifies CAN physical signals to achieve complex networking
topologies or longer networking cable lengths.
Network Splitter
Device that splits Metra NET Network cable to connect Metra device.
Network Terminator
Each cable segment of the Metra NET network must be terminated on far
end with the Network Terminator (resistor).
RJ-45 connector
Standard UTP cable connector.
UTP Cable
Cable widely used in computer networks. Suitable also for Metra NET
Network. Cable wires are defined differently for Metra NET network. Never
mix Metra NET Network with other computer Networks. They are not
compatible!
Trunk Line
Main Metra NET Network (CAN) cable line which can be totally up to 1km
long and terminated with Network Terminator at the end. Network devices
are attached to the Trunk line via Network Splitters and should not be
located more than 10 meters away from trunk line.

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Metra NET Network - Installation Manual
Network installation products
Network Splitter
Used as interconnecting device for “Metra NET Network” by using
standard UTP cable. It is also used to connect Metra device to the
“Metra NET Network”.
It is passive device that do not need power for operation.
NOTE 
Network Splitter does not need power supply for its operation! It
only connects device’s power lines to power supply’s power lines for
easier installation procedure!
NOTE 
Connect only 12VDC power to the Network Splitter.
CAUTION 
Do not connect 24VDC power to the Network Splitter!
CAUTION 
Do not connect 230 VAC Mains power to the Network Splitter!
Network Repeater 2
Used to join two cable segments of the “Metra NET Network”. It has
two external RJ-45 connectors: IN line is connected to Network
Controller side. OUT line is Trunk line for connecting Metra Devices
and can be up to 1000 meters long terminated at far end with
Network Terminator (the other side is terminated inside Network
Repeater on OUT line).
“Network Repeater 2” is also used in series topology when total
length of cable is longer than 1000m. “Network Repeater 2 needs
Power Supply 12VDC to operate properly which is included in the
product package.
NOTE 
Power supply for the Network Repeater 2 should be connected
through the UPS power supply unit.
Network Repeater 8
Used to join 8 cable segments of the “Metra NET Network”. It has 8
external RJ-45 connectors: IN line is connected to Network
Controller side, seven OUT lines are each Trunk line for connecting
Metra Devices and can be each up to 1000 meters long terminated
at far end with Network Terminator (the other side is terminated
inside Network Repeater on each OUT line). It is useful for complex

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Metra NET Network - Installation Manual
network topologies (star topologies) where several cables joins at
the single point.
“Network Repeater 8 needs Power Supply 12VDC to operate
properly which is included in the product package.
NOTE 
Power supply for the Network Repeater 8 should be connected
through the UPS power supply unit.
Network Controller / Repeater Mounting Plate for 19’’ rack
Mounting plate for 19’’ computer rack
for 2x “Network Repeater 2”, 1x
“Network Repeater 8” and 1x Network
Controller NET or Network Controller
TCP/IP. With nine additional RJ-45 Metra
NET Network connectors.
Network Terminator 120
Coloured Black. Used to terminate Trunk line. Single segment can be
up to 1000 meters long and connected to Network Controller or
Network Repeater.
Nominal impedance 120 Ohm.
Network Terminator 240
Coloured Blue. Used to terminate dual cable each segment
separately. Dual cable can be each segment up to 400 meters long.
Both cable segments join at the Network Controller or Network
Repeater.
Nominal impedance 240 Ohm
Emergency Open Push-Button
Key protected Emergency Open Push-button is used to initiate
Emergency Open procedure for all Electronic Locks connected to
Metra NET network.
Connects to Network Controller and Network Controller TCP/IP.

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Metra NET Network - Installation Manual
Connecting cable for Metra Devices
Cable to connect Metra device to Network Splitter if longer cable
needed.
Each device comes with own cable from 1 to 1.5 metres long.
Available lengths: 3m, 5m and 10m.
Mounting Network installation products
Mounting Network Splitter
Network Splitter can be mounted to a flat surface by a
screw through the hole in the middle.
The other possibility is to mount it on a flat surface by
adhesive label on the bottom of Network Splitter.
Mounting Network Repeater 2 to the Network Controller / Repeater
Mounting Plate for 19’’ rack
NOTE 
Up to four “Network Repeaters 2” and one “Network Repeater 8” can be mounted to the “Network
Repeater Mounting Plate for 19” rack simultaneously.

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Metra NET Network - Installation Manual
Mounting Network Repeater 8 to the Network Controller / Repeater
Mounting Plate for 19’’ rack
NOTE 
Up to four “Network Repeaters 2” and one “Network Repeater 8” can be mounted to the “Network
Repeater Mounting Plate for 19” rack simultaneously.
Mounting Network Controller TCP/IP to the Network Controller / Repeater
Mounting Plate for 19’’ rack
NOTE 
Up to four “Network Repeaters 2” and one “Network Repeater 8” can be mounted to the “Network
Repeater Mounting Plate for 19” rack simultaneously.

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Metra NET Network - Installation Manual
Mounting Network Controller NET to the Network Controller / Repeater
Mounting Plate for 19’’ rack
NOTE 
Up to four “Network Repeaters 2” and one “Network Repeater 8” can be mounted to the “Network
Repeater Mounting Plate for 19” rack simultaneously.
Metra NET Network
“Metra NET Network” uses industry standard CAN network.
It is two wire bus topology which means parallel connection to each device. Wires are labelled CANH
and CANL on each Metra device.
NOTE 
It is important not to mix connection wires for CANH and CANL!