User's Manual

Cable to Controller (for basic connections)
• 5, 6 or 7 conductors (not twisted pairs), stranded, 22 AWG, color-coded insulation, overall 100% shielded
(Number of conductors depends upon use of optional features – Beeper, Hold and LED. See Figure 2.)
• Length for Wiegand Interface................ Up to 500 feet
Read Range (Typical) MR-1824
MR-1824-MC
• At 5 VDC................................. About 12 inches (30 cm) ...............................About 8 inches (20 cm)
• At 12 VDC............................... 18 to 24 inches (45 to 60 cm) ........................Up to 16 inches (40 cm)
Characteristics
• Indoor and Outdoor ................. Rated for outdoor installations
• Operating Temperature............ -35° C to 65° C (-31° F to 150° F)
• Operating Humidity................. 0 to 95% non-condensing
Operating Parameters
• Excitation Frequency............... 125 kHz
• Wiegand Output....................... 26 bits to 50 bits (as programmed in the cards or tags))
Certifications.......................................... FCC Part 15 certification; Industry Canada
Notes
1. For suggestions on best performance, read AWID’s memo “MR-1824 – Achieving Maximum Read Range”.
2. When the yellow wire is not used, the beeper remains active and under the reader’s internal control.
3. Beeper, Hold, and LED lines are logic levels. Never apply power to them. They may be pulled to a low level
(0 to 1.2 VDC) to enable their function, and left floating at a high level (3.6 to 5.0 VDC) when not used.
4. MR-1824 and MR-1824-MC readers have both Wiegand-protocol and RS-232 interfaces. For information on RS-232,
contact AWID’s technical support.
5. For additional information, please see AWID’s web site (www.awid.com
). Send all technical support questions
to [e-mail]. Call AWID at 1-800-369-5533 from 8:00 a.m. to 7:00 p.m. Eastern Time.
6. FCC Compliance: This equipment has been tested and found to be in compliance with the limits for FCC part 15, Class A digital device.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with
instruction manual, may cause harmful interference with radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
The users are prohibited from making any change or modification to this product. Any modification to this product shall void the
user’s authority to operate under FCC Part 15 Subpart A Section 15.21 regulations. 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, and (2) this device must
accept any interference received, including interference that may cause undesired operation.
7. Industry Canada Compliance: Operation is subject to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.
FIGURE 1. Holes Location
FIGURE 2. Wiring Diagram (Wiegand)
MR-1824 Revision E Reader Installation Sheet 15 August 2006 Page 2 of 3