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Model 2314/2316 SNMP Alarm Encoder
Fial Incorporated
2314/2316-042315
5
Figure 4. Battery Polarity Selection For Optoisolators
AC POWER RECOMMENDATION (AC power supply not included)
For the wide range 18 to 72 VDC supply voltage 2314/2316 RTUs, if DC Station Battery is
unavailable and an AC power supply is required, the use of a 24V, 1.5 to 2.0 amp wall-mount or
desktop style switching power supply is recommended. These power supplies may be purchased
from many different sources and generally cost around $20 to $30. The power supply DC
connector (typically a barrel style plug) will need to be removed and the power supply lead wires
connected to the appropriate 2314/2316 DC power input connector terminals (provided with the
unit). Connect the power supply
Positive
lead to the
Positive input
connector terminal and the
power supply Negative lead to the Negative input connector terminal. The 2314/2316 DC power
input connector
Sta. Gnd
terminal needs to be connected (jumper wire) to the proper power supply
input terminal, which will depend on the ground reference used for the equipment connecting to the
2314/2316 Alarm Inputs. Make sure to follow the previous instructions regarding Station Ground
requirements on page 4.
LAN CONNECTION: The SNMP Alarm Encoder is connected to the IP network using an Ethernet
RJ45 jack and standard 10BaseT or 100BaseT wiring
.
The LAN port will automatically switch to
10BaseT or 100BaseT, depending on the connection type at the other end of the cable.
EXTERNAL I/O CONNECTOR
A 50-pin Champ (AMP) connector is used for alarm input, analog inputs and relay outputs.
It is best to order a pre-assembled cable assembly from a company such as Grayhill. One easy
option is to use a cable with a 50-pin AMP connectors at each end and a 66M block (punch-down
block) pre-wired to a 50-pin AMP connector. The cable end that connects to the 2314/2316
should be a male, connector. The other end should mate with the 66M block. 66M blocks can be
ordered with male or female connectors. The punch down block can be mounted on the wall, and
all the station connections brought to that block. Follow the pin assignments for the connector
detailed at the end of this document (Table 8-1).
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