Onity HT22, User Manual

Page: 17 / 153

System Components - 9
Right Arrow
The RIGHT ARROW is used to scroll down through
the alphabet, scroll right in the menu headings or scroll
down one page at a time in a list.
Display Adjustments
The HT22 encoder has a Liquid Crystal display with a
backlight to allow you to easily view the screen from
any angle.
[NOTE: Older versions of the HT22 may also have a
contrast adjustment knob located on the bottom left of
the encoder. Current versions do not have this
adjustment.]
HT22 Styles
The HT22 comes in three styles – Insertion (HT22i),
Motorized (HT22m), and RFID (HT22P). The magnetic
encoders (Insertion and Motorized) both encode
information on Track 3 of the magnetic stripe keycard,
which is reserved for locking system information. The
RFID Encoder encodes information into Sector 1 of a
MIFARE card.
Cables
The cable used to connect the encoders should be 18
gauge, two-conductor, twisted-pair, stranded, shielded
cable. If the cable is to be run through ceilings or crawl
spaces, it should also be plenum rated. The cable should
have a DB9 male connector on each end. Within the
cable, pins 2 and 3 should be connected straight
through; pin 2 on one end is connected to pin 2 on the
other end, and pin 3 on one end is connected to pin 3 on
the other end. These cables are typically supplied by
Onity, but in cases where the distance between
encoders exceeds 100ft, or if it is difficult to run the
cable, it may be supplied and installed by a local cable
contractor. The only difference in this cable and the
HTCOM cable that is supplied with the PP is the cable
length.