General Descriptions; Grounding Recommendations - Honeywell IdentIPoint Installation Instructions Manual

HONEYWELL IDENTIPOINT™ INTELLIGENT SMARTCARD SYSTEM
point on the board to ensure the integrity of all connecting
wiring. The battery should be replaced every 4 years or more
often under severe conditions.
WIRING THE READERS AND
IOM

General Descriptions

Power to the Reader:
Power can be supplied to the IdentIPoint reader either via the
Ethernet cable when it is connected to a router/switch that is
equipped with PoE (Power over Ethernet) PSE (Power Supply
Equipment) feature, or through a 12-24VDC power source.
NOTE: The PoE PSE can supply power up to 12.95 Watt.
It can supply power for one reader, one door
strike/magnetic lock which consumes a steady
current of less than 300mA (e.g. ASSA ABLOY
HES 5200) and one IOM. For the IOM module, DC
12V is needed.
Use of PoE is not a UL294 listed configuration and should not
be used on UL294 applications.
Data Communication:
Each IdentIPoint reader is equipped with an RJ45 connector
for Ethernet communication. It also has a wireless LAN
module that supports IEEE802.11b/g. The reader can
communicate with one or more IOMs via the RS485 bus.
NOTE: Wifi network configuration is not a UL294 listed
configuration and should not be used on UL294
applications.
The RS485 bus is a multi-drop 2-wire bus running differential
signal in half duplex. A third wire, the common ground, is also
recommended for more reliable communication. Multiple IOM
units can be attached to an IdentIPoint reader through this bus
in daisy chain mode. See Fig.24.
NOTE: It is recommended not to attach more than 4 IOM
units to the RS485 bus to maintain a reasonable
signal/response time delay between the reader
and IOMs.
CAUTION
Transmission Protection The system may require
external lightning protection. For details, refer to
Lightning Protection topic.
Supervised Analog Input (SAI):
The Supervised Analog Input is designed to detect
supervisory loop tamper. See section Supervisory Analog
Input (SAI) termination circuit of Wiring Other Devices topic for
details. Such a loop circuit can be connected to the SAI of an
IdentIPoint reader as well as the IOM. This loop can detect
tampering by shorting across or cutting the loop. Four states
can be detected by the IdentIPoint device: open, short, cut
and closed.
95-7767
Digital Input (DI) (IOM only):
The Digital Input is an active high input, which can be read by
the IOM and reported back to the reader through the RS485
interface.
Digital Output (DO)
The Digital Output is a current sinking output, capable of
sinking up to 1A at the rated supply voltage. The output can
thus be used to drive the door strike/magnetic lock, lights as
well as other Digital Inputs or Supervisory Inputs. See Figures
25 through 28.
Wire the Readers and IOM
1. Run the field wiring to the readers as per the job draw-
ings. Figures 21 through 24 show typical wiring
schemes for IdentIPoint devices. Wires of a minimum
gauge of 18 AWG are recommended for all wiring with
the upper limits specified for some applications. See
Table.2 for details on wire sizes and maximum permissi-
ble distances. 18 AWG wires (0.3 sq. mm) must be lim-
ited to 1A loading. When used for carrying
communication data as in RS485, the wires must be a
twisted pair.
2. To power the reader, plug the Molex terminal into the J9
port of the reader such that the red and black wires of
the terminal, connected to the +ve and -ve pins of the
power supply connect with pins 1 (Power IN) and 2
(Power GND) of the J9 port.
3. Ensure the other wires of the Molex terminal are con-
nected to the correct corresponding wires from the other
devices such as IOMs, door sensors, door strikes etc.
(see Detailed Wiring Diagrams and Wiring Other
Devices topics and Fig.11). For wires that are not used,
ensure proper insulation at the free ends.
4. To power the IOM, plug the terminal block into the J1
port of the IOM such that the wires connected to the +ve
and -ve pins of the power supply, connect with the pins
for DC-IN and GND of the J1 port. The IOM may also be
alternatively powered through an IdentIPoint reader
(see Fig.22).
5. Ensure the other ports of the IOM are similarly con-
nected to the correct corresponding wires from the other
devices such as readers, door sensors, door strikes etc.
(See Detailed Wiring Diagrams and Wiring Other
Devices topics and Fig.18).
6. Use proper crimping and/or insulation while connecting
the wires.

Grounding Recommendations

The FRAME-GROUND signal (pin 10 of J10) of the reader
has to be connected to the POWER-GND at all times to
ensure good ESD protection and low electromagnetic
radiation.
The FRAME-GROUND signal (port J3) of the IOM has to be
connected to the POWER-GND before making any other
connections to minimize the introduction of error in the RS485
communication line during hot signal insertion. It also should
be the last signal to be disconnected.
NOTE: FRAME-GROUND is also known as CHASSIS-
GROUND in some countries including USA.
22