Power supply
Important:
Install the data protection battery
before applying 24 VAC power to the network
engine. See the
Installing the data protection battery
section.
In North America, use a Class 2, 24 VAC power supply with
a 50 VA minimum output. Outside North America, use a
24 VAC SELV transformer at the appropriate rating. The
minimum input voltage for the network engine to operate
properly is 20 VAC. See the
section.
Use a dedicated power supply to the network engine
only. Do not connect any other loads to the power supply.
Additional loads may cause noise interference.
Ethernet port
The Ethernet port, labeled
ETHERNET
, is an 8-pin RJ-45
network port for connecting the network engine to
Ethernet IP networks. Network engine can connect to
Ethernet networks at 10 Mbps, 100 Mbps, or 1 Gbps.
This Ethernet port provides IP communications over
the building network and to any third-party integration
that uses Ethernet communication. The devices that you
integrate through the
ETHERNET
port on the network
engine include the following:
• BACnet/IP
• BACnet/SC devices utilize the ethernet port
• Ethernet TCP/IP
• Modbus TCP/IP
• KNX
• Tyco C•CURE 9000 and Tyco victor Video Management
• Simplex FACU
• Cree SmartCast Lighting Control
• Molex Lighting Control
• OPC Unified Architecture (UA)
FC Bus terminal block
The two Field Controller (FC) Bus connections on a
network engine are 4-pin removable, keyed terminal
blocks labeled
FC-A
and
FC-B
. The FC bus connections are
optically isolated RS-485 ports that communicate at 9600,
19,200, 38,400, or 76,800 baud. You can use the FC Bus
port to integrate the following field controller networks
into the Metasys system:
• BACnet MS/TP FC Bus
• N2 Bus
• Modbus RTU
• M-Bus
Note:
Each field controller integration has different
protocols and network requirements. Do not
intermix N2, MS/TP, Modbus, or M-Bus devices on
the same FC Bus port.
The SHD connections on the FC terminal blocks are not
connected to any earth ground connection. The FC A and
FC B terminal blocks are not interchangeable.
LonWorks network terminal block
The LonWorks TP/FT-10 network connection, available
only on the network engine LonWorks model, is a 3-wire
removable, keyed terminal block. The Shield connection
on the LonWorks network terminal block is an isolated
terminal and is not connected in the network engine.
Use the LonWorks terminal block to connect LonWorks
networks to the network engine.
Computer serial ports
The network engine has two RS-232-C serial ports labeled
RS232C A
and
RS232C B
(Figure 3). Use either port to
connect a Modbus RTU or Zettler MXSpeak third-party
integration. For more information on how to use the
serial port for third-party vendor integration, refer to the
application note for the particular vendor integration you
are installing. Lastly, these RS-232-C serial ports do not
support external modems.
Universal Serial Bus (USB) ports
The two USB ports labeled
USB A
and
USB B
are
independent of each other. At Release 10.0 or later, the
use of a USB port to connect an optional external modem
is no longer supported.
Optional Internal Modem
MS-NAE55x1-x models with Release 9.0 have an internal
modem and a 6-pin RJ-12 modular jack labeled
MODEM
.
Connect a standard phone line into the MODEM jack to
use the internal modem.
Note:
Modem functionality is no longer available for
NAE55s upgraded to Release 10.0 or later.
For information on commissioning an internal modem
on older models, refer to the
NAE Commissioning Guide
(LIT-1201519)
.
Wiring the Network Engine
Mount the network engine securely before wiring it. For
.
CAUTION
Risk of Property Damage.
Do not apply power to the system before checking
all wiring connections. Short circuited or improperly
connected wires may result in permanent damage to
the equipment.
Attention
Risque de dégâts matériels.
Ne pas mettre le système sous tension avant
d'avoir vérifié tous les raccords de câblage. Des
fils formant un court-circuit ou connectés de façon
incorrecte risquent d'endommager irrémédiablement
l'équipement.
NAE55 Installation Guide
4