MD-D02
2-Reader Expansion Board
Installation Manual
1
1. Introduction
The MD-D02 is an optional expansion board for use with Rosslare
Security's family of state-of-the-art AC-225 and AC-525 networked
access controllers.
The expansion board adds an additional two reader or keypad inputs;
four relay outputs and four supervised inputs to the access control
panel.
As a result, an access control panel with an MD-D02 expansion can
support a total of four readers and four door panels. In addition, it is
possible to add any keypad or biometric reader that supports the
Wiegand or Clock & Data transmission formats.
The host access controller has complete control over the additional
readers, inputs and outputs of the MD-D02 expansion board. The
inputs and outputs can be configured using an access control software
system such as Rosslare Security's AxTrax. The software system also
configures the MD-D02's reader card transmission format and input
connection topology.
This guide explains how to install and begin working with your new
MD-D02 access control panel expansion board.
Figure 1: MD-D02 Access Controller Expansion Board
2. Technical Specifications
2.1 Electrical Characteristics
MD-D02 Input Voltage 12 VDC
MD-D02 Input Current
(not including attached devices)
Standby: 30 mA
Maximum: 190 mA
Number of Reader Ports 2
Number of Inputs 4
Number of Outputs 4
Output Relays 5
A with N.O., N.C., and COM contacts
Form-C Relays
Inputs Voltage 5 VDC maximum voltage
2.2
Input Characteristics
Input Type Selectable as:
•Normally Open
•Normally Closed
•Supervised with one resistor (three
states, normally open or normally
closed)
•Supervised with two resistors (four
states, Normally Open or Normally
Closed))
2.3 7BPhysical Characteristics
Dimensions (L x W x D) 100 x 75.9 x 32.5 mm (3.94 x 2.99 x 1.28 in.)
Weight 98.2 g (3.46 oz)
2.4 8BReader Characteristics
Reader Output Voltage 12 VDC
Max. Reader Current: 245 mA
LED Control Output Open collector, Active low
Tamper Input 5 VDC maximum voltage, optical anti-tamper
sensor
Supported Formats Various (refer to the AxTraxNG™ software manual)
2.5 9BLED Indicators
Power LED Active when connected to a power source
Output LEDs Four LEDs
Each output LED is active when an output relay is
energized and N.O. to COM contacts are shorted.
3. 2BInstallation
Figure 2 shows how host access control panel looks before the MD-
D02 is attached.
Figure 2: Host Access Control Panel without MD-D02 Expansion
3.1 10BAttaching the MD-D02
1. Disconnect power to the access control panel before attaching the
MD-D02.
2. Remove the MD-D02 cover by lightly pulling one of the cover
knobs away from the circuit board. The entire cover comes away
from the board.
3. Peel off the label on the cover of the panel marked "Remove to
install I/O board". The label is located on the same side of the
panel as the DIP switch.
4. Insert the 10-pin male connector of the MD-D02 into the gap in
the panel cover labeled "IO EXPANSION SLOT". The text on the
MD-D02 must face the same way as the text on the panel cover.
5. Tighten the screws securing the cover to the access control panel,
and the four Philips screws on the MD-D02 circuit board.
6. Replace the cover on the expansion board, using it as a guide to
ease the MD-D02 into the panel's 10-pin female connector.
