Eagle Microsystems EI-2000 - Manual (Page 19)

PORTS & JUMPERS
P1
BDM interface Factory use only – Do not connect anything to this header.
P2 (J7) Display interface This connects, via ribbon cable, to the display, which are the
DSP1000 (EI-1000) and EI-2000-DSP.
P3 & P4 Expansion board
interface
Both headers are used to connect to expansion boards,
which are the EI-2000-IO and EI-2000-EXP.
J1 & J2
Sense connections Local or remote sense selection shunts.
J3 Instrument
selection
This selects an EI-1000, EI-2000 or EI-4000 instrument, see
below. This is set at the factory, and if this jumper is not
set properly, the meter will not function.
J4 RS485 terminator
resistor
Install a shunt to connect the 120 ohm terminator resistor to
the RS485 A & B lines.
FUSE
The fuse is a ½ ampere, 250VAC, 5x20mm, time-lag fuse. Do not use any other rating.
VOLTAGE SELECT SWITCH (S2)
The voltage selection switch, located on the EI-2000S-CPU, selects the 115V or 230V range.
EI-
1000 & EI-2000 METER SELECTION HEADER SHUNT (J3)
Connect J3-3 and J3-4 to select an EI-2000 meter; the display is the EI-2000-DSP.
Connect J3-1 and J3-2 to select an EI-1000 meter; the display is the DSP1000.
Invalid shunt positions:
REMOTE SCALE SENSE
Single channel EI-1000 meters can utilize the remote sense connections. This minimizes the
error of the cable voltage drop, minute thermal errors of the connections and wire
temperature coefficients. The remote sense must be used if intrinsically-safe barriers are
being used. Do not use remote sense on the EI-2000 meter or EI-1000 multi-channel
applications.
Disabled (local sense)
Enabled (remote sense)
NOTE: DO NOT SELECT THE VOLTAGE WHILE THE METER IS POWERED!