BACnet 435, Руководство по установке

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Helvar 435 BACnet Gateway: Installation Guide 9
Shielded RJ45 connectors and screened Category 5 cables are widely available, but specifications
vary. Given the problems that can arise with inadequate cabling, we recommend that you use
ready-made interconnecting cables.
3.2.1. Power supply
Each product requires a 9 VDC – 40 VDC power
supply. When the power is correctly supplied, the
Power LED is illuminated.
3.2.2. Communications
The RJ45 port, indicated by the symbol, is designed for Ethernet LAN.
• Ethernet Communication Port
Each unit contains 10/100 base T port for Ethernet communications via a standard RJ45 type
connector. Connection to an Ethernet hub/switch requires a Category 5 RJ45-to-RJ45 cable
assembly. When connecting to the Ethernet hub/switch, a ‘straight-through’ cable is used.
RJ45 MALE
FROM RJ45
PIN NO.
SIGNAL
COLOUR CODE
(EIA/TIA 568B)
TO RJ45
PIN NO.
1
T
White/Orange 1
2 Transmit– Orange 2
3 White/Green 3
4 N/A Blue 4
5 N/A White/Blue 5
6 Receive– Green 6
7 N/A White/Brown 7
8 N/A Brown 8
The image shows the flat side of RJ45 plug.
When connecting directly to another device supporting 10/100 base T Ethernet
communications protocol, i.e. a laptop or computer used to configure and interrogate the
unit, a ‘crossover’ cable is required.
RJ45 MALE
FROM RJ45
PIN NO.
SIGNAL
COLOUR CODE
(EIA/TIA 568B) TO RJ45
PIN NO.
1
T
White/Orange 3
2 Transmit– Orange 6
3 White/Green 1
4 N/A Blue 4
5 N/A White/Blue 5
6 Receive– Green 2
7 N/A White/Brown 7
Pin 1
Pin 1
V+
9 VDC – 40 VDC
Power Supply
V–