Link Network Gateway User Guide
-8-
Input
•
Two optically isolated inputs
•
24V nominal, 50V maximum (protected from
reverse connection)
•
Input impedance: 5.2K
•
Minimum “on” voltage: 19V @ 4.4mA
•
Maximum “off” voltage: TBD
•
Response time:
o
Low to High transition: 40
sec
o
High to Low transition: 400
sec
Output
•
One output, normally open
•
Contacts rated to 2A, 24VDC
•
Rated for 10 million operations
•
Relay coil: 178 Ohm, 140mW nominal operating power
•
Relay coil current consumption at 24VDC input: 7mA
USB HOST
This port is reserved for future expansion.
USB
The USB port is provided for configuring the network settings on the Gateway. Refer to Chapter 3 for details of this interface.
ETHERNET
The Gateway supports 100BaseT ethernet communication using a standard RJ45 jack. This connector includes integrated Link
and Activity
status LED’s.
The Gateway can be powered through this connection using an IEEE 802.3af compliant PoE source (44-57VDC).
The Gateway supports both IPv4 and IPv6 addressing.
RADIOS
Figure 3 - Antenna connectors, standard product
Figure 2 - Input circuit diagram
