Table of Contents
Advertisement
XNX Universal Transmitter
Searchpoint Optima Plus/Searchline Excel Wiring
When wiring the transmitter and the Searchpoint Optima
Plus or Searchline Excel for remote applications, the general
recommendations of the ANSI/TIA/EIA-485-A standard must be
adhered to with the following additions:
1. When mounting the Searchline Excel sensor or
Searchpoint Optima Plus detector, run the wiring between
each sensor or detector and the transmitter in separate,
dedicated conduits.
2. Use 18 AWG twisted shielded cable for the RS485
connection between sensor or detector and the
transmitter. Verify that the shield of the cable is grounded
to earth and the XNX ground on one end ONLY.
3. Avoid running wiring near main cables or other high-
voltage equipment.
4. Do not install 120 ohm terminating resistors. These
resistors are not required due to low data rates.
5. Honeywell Analytics recommends that Searchline Excel
sensors or Searchpoint Optima Plus detectors and the
transmitter be wired to building ground. Ground the
system at only one point.
6. Perform a soft reset after connecting the Searchpoint
Optima Plus detector and the transmitter for the first time.
The soft reset is performed by accessing the transmitter's
Calibration Menu. When the soft reset is initiated for
the Optima IR sensor, the RS-485 communication will
be interrupted temporarily and faults F120 and/or F161
may be observed. RS-485 communication will be re-
established in a few minutes and the faults will be reset
automatically in non-latching mode. The faults must be
reset manually in latching mode
Installation and Operation
54
Hide quick links:
Advertisement
Table of Contents
