Senstar Corporation LM100 Manual Do Utilizador
Installing the LM100 gateway
Page 32
Senstar LM100 Product Guide
Grounding
The gateway requires a single ground reference. Connect the ground lug on the bottom of the
enclosure to an approved earth ground at the gateway’s location. The earth ground connection
must be stable and noise free. An improper or unstable earth ground can induce noise in the
gateway. Do not use the fence structure as an earth ground. Avoid sharp bends in the ground wire.
enclosure to an approved earth ground at the gateway’s location. The earth ground connection
must be stable and noise free. An improper or unstable earth ground can induce noise in the
gateway. Do not use the fence structure as an earth ground. Avoid sharp bends in the ground wire.
I/O ports
The LM100 gateway includes ten I/O ports that can be configured as either inputs or outputs in any
combination. The I/O ports are accessed through removable screw terminal blocks. Each port has
an associated LED, which indicates when the port is active (LED ON = port active). The optional
dry contact input card includes four additional inputs and the optional relay output card includes
four additional relays to supplement the I/O on the gateway.
combination. The I/O ports are accessed through removable screw terminal blocks. Each port has
an associated LED, which indicates when the port is active (LED ON = port active). The optional
dry contact input card includes four additional inputs and the optional relay output card includes
four additional relays to supplement the I/O on the gateway.
I/O port jumpers
Each I/O port includes a pair of configuration jumpers which are set according to the intended use
of the port. For ports that will be configured as outputs and will source power to an external device,
and for all inputs, install the shunts on the headers. For ports that will be configured as outputs but
will not source power (dry contact outputs) park the shunts on a single pin, as indicated in
of the port. For ports that will be configured as outputs and will source power to an external device,
and for all inputs, install the shunts on the headers. For ports that will be configured as outputs but
will not source power (dry contact outputs) park the shunts on a single pin, as indicated in
Outputs
The gateway’s relay outputs can source up to 100 mA at the same voltage as the gateway’s input
power in the high side drive configuration. The relays can also be configured to sink up to 100 mA
as Form A (normally open) or Form B (normally closed) contacts. The capability to source power
depends on the capacity of the connected power supply. The gateway’s relays can also be
configured as Form A or Form B dry contact outputs (no power).
power in the high side drive configuration. The relays can also be configured to sink up to 100 mA
as Form A (normally open) or Form B (normally closed) contacts. The capability to source power
depends on the capacity of the connected power supply. The gateway’s relays can also be
configured as Form A or Form B dry contact outputs (no power).
illustrates the
gateway’s five selectable output schematics.
Note
Consult the local electrical code for grounding information.
Note
The gateway can use either an input card or an output card, not both.
Figure 33: Gateway I/O port jumper settings
voltage sourcing outputs and dry contact inputs
dry contact outputs