Electrical Interface
LRP2000 Passive Reader/Writer 26
Because of the narrow size of the strain reliefs on the LRP2000, the standard RJ-45 connector cannot be
inserted through the strain relief. EMS recommends that you loosen the nut on the strain relief, feed
through the cable, and crimp the connector in place. After the connector is crimped onto the cable, the
cable can be connected to the Ethernet module, and the excess cable withdrawn from the unit before
tightening the strain relief. EMS recommends stranded shielded CAT5e cable for Ethernet wiring.
Ethernet capability is an optional upgrade. Contact your EMS dealer for inquiries about availability of this
option and upgrade.
3.8 Digital I/O Circuitry
Both the digital inputs and digital outputs are optically isolated circuits with no common path between any
channel terminal and another channel, or between any channel and the LRP2000 power. Because they
are independent and floating, the external wiring controls their use. The inputs can be configured for
sensors with a PNP or NPN output. The outputs can be configured in a sourcing or sinking configuration.
The examples in Figure 24 through Figure 31 show different connections for common input and output
devices.