HID Serial ProxPro Reader Installation Guide - Manual (Page 8)

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HID Corporation 9292 Jeronimo Road Irvine, CA 92618-1905 USA TEL (949) 598-1600 (800) 237-7769 FAX (949) 598-1690
http://www.prox.com Serial ProxPro Reader Installation Manual 5352-900 Rev F 7 of 9
Keypad Option Notes:
This section of this document describes the keypad interface. The keypad has twelve keys, four rows by three
columns. The characters 0 to 9, # and * are arranged the same as a standard telephone keypad. There are two
methods for interfacing to the Keypad.
The first configuration (K version, internal keypad) processes the keypad entries in the reader and then
transmits the data to the host system via the RS232/422 data lines. The reader outputs each key as an ASCII
encoded hexadecimal digit. The decoding of the message sent through the RS232/422 interface is the only
processing required of the host system. The user interface has been implemented in the most generic fashion
to give the integrator the most flexibility.
The Second configuration (S version, direct connect keypad), the Host must scan the keypad directly using a
separate cable.
K Version - Internal keypad processing
Length (Buffer keys) Option
The length option chooses the number of key entries that will be buffered before the message is sent to the
host. The maximum number of entries is 11. When the option is set for multiple entries the reader has a five (5)
second timer that will clear all entries after five seconds has expired between entries. The length option
requires the user to enter the programmed number of key entries. Upon completion of the last key entry, the
message is assembled and sent. This requires the system integrator to configure the reader for the number of
key entries before installation.
User Interface
The user is able to press keys at any time. Card reads and key entries are independent of each other, the user
is not required to follow any sequence, unless specified by the system integrator. The reader is equipped to
beep, flash the LED and give tactile feedback when a key is pressed. The amount of time is 5 (five) seconds
between key entries when the multiple key entry option is used. If the time expires between key entries, all keys
entered are cleared and the user must start the sequence from the beginning.
Keypad Messages
The keypad message follows a basic format. The reader outputs each key as an ASCII encoded hexadecimal
digit. For an example, if the user presses the:
five key, the host receives ASCII 5 <35 hex>
eight key, the host receives ASCII 8 <38 hex>
star key “*”, the host receives ASCII A <2A hex>
number key “#”, the host receives ASCII B <23 hex>
If the ProxPro has been factory configured for buffering, the reader will buffer the correct number of keys
before transmitting the serial ASCII message.
For an example, if the buffer length equals 3 keys, and the user presses keys 4, 5 and 6, The host will receive
(ASCII) 4,5,6, CR,LF, or <34H 35H 36H 0DH 0AH>
.
The communications settings are 9600 BAUD, 8 bits, 1 stop bit, no parity. The internal keypad processing
mode is available on the Serial ProxPro 5352XXKXX versions.
Keypad Scanning 2 of 7 (K version)
This mode requires a separate cable to be supplied that connects to the Keypad board, inside the ProxPro, to
the Host via P2. P2 is a 7 position terminal strip. Switch 1-4 (SW1-4) should be switched to the “off” position.
The reader will then NOT process the keypad data, and it will be decoded by the host in 2 of 7 format..
The keypad has a matrix of contacts corresponding with the matrix of keys. The contact outputs are wired to
the seven terminals of P2. The seven terminals are called P2-1 thru P2-7 and provide the 2 of 7 decode of the
buttons. When a key is pressed, the button closes two contacts that pull 2 lines to ground. This results of the
key entries are in the table below. The reader and the host that is scanning the keypad will require a common
signal ground. The connection is to be made on either pin 2 (power supply ground) or 5 (Data Return) of TB1 of
the Serial ProxPro.