CYPRESS
CVT- 2240
Wiegand -> ASCII Converter
INDUSTRY LEADERS DEPEND ON US ...FOR SOLUTIONS
Cypress Computer Systems, Inc. • 1778 Imlay City Rd. • Lapeer, MI 48446-3206
TX(810)245-2300 • FX(810)245-2332 • www.cypresscom.com
Converts encoded badge information from Wiegand readers
to an ASCII string.
RS-232
Any Wiegand output reader
CVT-2240
Features
• Encoded badge information is transmitted as an ASCII string.
• The Reader's LED is activated by receiving a command string.
• A command sequence also controls an on-board relay.
Description
When connected to any Wiegand output reader, the encoded badge information is output as
a formatted ASCII string. The output of the CVT-2240 can then be captured by a
communications program running on a PC or printed directly on a serial printer. In
addition, commands can be sent to the CVT-2240 to control the reader's LED and activate
an auxiliary relay located on the Converter's circuit board.
Applications
Verifying encoded badge information.
Creating a database of existing badges.
Entering badge information into a program.
Testing badge or reader integrity.
Remote Control of Door strikes, MagLocks, Turnstiles, and Gate arms.
3.1
2.5
2.9
1.1
side view
Wiegand to
ASCII
Converter
CVT-2240
+8 to +24 Vdc @ 150 ma
Ground
+5 Vdc @ 100 ma
Data 0
Open Collector or 5 Vdc Pulses
Data 1
LED
Open Collector (30 Vdc Max)
Ground
DB-9
Female
Normally Open
Normally Closed
Common
Door Strike Relay
125 Vac @ 1 Amp
DB-9 Female
1...DCD unused
2...RX Data from Terminal/Printer
3...TX Data from CVT-2240
4...DTR unused
5...Ground
5 4 3 2 1
6...DSR unused
7...RTS
8...CTS
9 8 7 6
9...RI unused
Cypress Computer Systems, Inc. • 1778 Imlay City Road • Lapeer, MI 48446
TX(810)245-2300 • FX(810)245-2332 • www.cypresscom.com
Cables
TX
RX
Gnd
3
2
5
3 RX
2 TX
7 Gnd
CVT-2240
DB-9
Male
TX
RX
Gnd
Computer
DB-25
Female
3
2
5
2 RX
3 TX
7 Gnd
CVT-2240
DB-9
Male
TX
RX
Gnd
Printer
DB-25
Male
3
2
5
2 RX
3 TX
5 Gnd
Computer
DB-9
Female
CVT-2240
DB-9
Male
Communications: 9600 BPS ASYNC, 8 bits, 1 Stop, No Parity
RX Data:
Turn LED on................
Turn LED off...............
Toggle LED.................
Turn Relay on..............
Turn Relay off.............
Enable Format Processing...
Disable Format Processing..
@
@
@
@
@
@
@
L
L
L
R
R
P
P
1
0
2 (Bi-Color LED Turns Orange)
1
0
1 (Outputs Badge Num,Site Code,Fixed Code for recognized formats only)
0 (Outputs Decimal Representation of all card bits)
TX Data:
stx
16383 0 65535
etx nul nul
Badge Number
1..65535
Site Code
1..16383
stx = $2
etx = $3
nul = $0
End of Text {$03}
Always 0
Start of Text {$02}
The above output would result from the following input:
xxxxxxx111111111111111111111111111111111111x
12345678901234567890123456789012345678901234
xxxxxxxSSSSSSSSSSSSSSBBBBBBBBBBBBBBBBxxxxxxx
Input Characteristics of CVT-2240
Data 1
50 µs (typ)
Data 0
1 ms (typ.)
This Device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
(2) this device must accept any interference received,
including interference that may cause undesired operation.
Cypress Computer Systems, Inc. • 1778 Imlay City Road • Lapeer, MI 48446 190512
TX(810)245-2300 • FX(810)245-2332 • www.cypresscom.com