Model Number

SRF-235/238A

?EM reader introduction:
o235EM proximity reader utilizes
EM technology to read
contactless EM cards
oSuitable for access control,
time and attendance and other
card control systems
oWiegand output model interfaces
with all existing Wiegand
protocol access control systems
?MF reader introduction:
o235MF smart card reader
utilizes MIFARE technology to
read MIFARE contactless smart
cards
oContactless smart cards are
used for stored value or data
applications such as access
control, vending, toll roads,
airline ticketing,
obanking cards, city cards, ID
cards, university cards,loyalty
schemes, phone cards, park and
ride, and prepaid metering
?Power requirements:
o235EM:9-12VDC at 100mA
o238MF:7-12VDC at 100mA
olinear regulator is recommended
?Read range:
o235EM: safety read range for
7cm with standard EM H4100 card
o238MF: safety read range for
4cm with Philips Mifare 1
contactless smart card
?Frequency:
o235EM: 125kHz standard
o238MF: 13.56kHz standard
?Operating temperature: -22 to
150 degrees Fahrenheit ??30 to
65 degrees Celsius??
?Operating humidity: 0% to 95%
relative humidity non-condensing
?Audio/visual indication: green,
red, yellow LED bar and buzzer
?Response time: less than 0.1
second
?ISO standard:
o238MF: ISO14443 type A
compatible
?Cable distance:
oWiegand interface: 500 fee??50m??
oRS232 interface: 50 feet ??5m??
oRecommended cable is ALPHA 1295
??2 AWG??5 conductor minimum
stranded with overall shield or
equivalent
oAdditional conductors may be
required for LED or beeper
control