Microframe Corporation
5
604 South 12
th
Street
Broken Arrow, OK 74012
800-635-3811
www.microframecorp.com
Series 900
CAUTION: be careful not to connect to the AUX or AC terminals. The AC terminals are used as an
alternate connection point for power. This is only used with power adapters that have bare wires
instead of a plug.
INTRODUCTION
Save yourself some work - review these instructions before starting installation.
This Keypad is configured to work with 2, 3, and 4-digit displays. For 6-digit displays change the option
"Keypad Type" to six digit mode. See Option 2.7 in Section 3, "Keypad Options".
PRE-INSTALLATION
We recommend testing the system before installation. Connect the keypads and displays together in one
room. Once you are satisfied that the system is working, proceed with your cable runs and equipment
mounting.
CABLE INSTALLATION
A single cable carries both power and signal from the keypad to the displays. RCA cable may be used, but
most installers find it easier to work with 2-conductor, 18AWG wire. Use 16AWG wire to improve the
maximum distance. Unshielded cable is acceptable. CAT 5/6 cable is not recommended, as the small wires
tend to break at the keypad. For aesthetic reasons, the installer may want to hide the cable to the displays.
This can be accomplished by punching holes in the wall directly behind the displays. See “Remote Display
Mounting Template”. To support additional displays or longer cable runs than the Keypad can handle, use
Booster Amp Model A0160.
KEYPAD INSTALLATION
The Keypad is typically wall-mounted at eye level. However, it may also be placed on a desk. Multiple
keypads may be used on the same system, and will automatically communicate with each other when wired
together.
KEYPAD CONNECTION
Unplug the keypad before continuing. Slide off the back cover of the keypad and connect the 2-conductor
wire. Connect the black wire to “GND” and the red wire to “SIG.” There are two terminals for both “GND”
and “SIG,” allowing for two sets of wires to be connected.
Once the wires are firmly connected, slide the protective cover back on and place the Keypad back into the
holder.
DISPLAY INSTALLATION
The display will have optimum visibility when mounted vertically within three to four feet of eye level. This
will keep the display in the proper field of view for the observer. To hang a display on the wall, place an
anchor screw into the wall, leaving the screw-head exposed. Line up the keyhole on the back of the display
with the screw. Hang the display from the screw. The “Display Mounting Template” provides a guide to line
up the mounting screw(s).
DISPLAY CONNECTION
Wire is fed from the wall through the cutouts on the back of the display. Connect the black wire to “GND”
and the red wire to “SIG.” The additional terminals allow a parallel set of wires to carry power to the next
display. Once the wires are firmly connected, hang the display back on the mounting screw(s).
TESTING THE SYSTEM
Once the system is wired together, plug in the keypad and turn it on. If the keypad shows “SHORT”, then
there is a short in the wiring. Turn off the keypad and check the wiring. Otherwise, type “123”, press
“ENTER”, and verify that “123” shows on all the displays. See the “Troubleshooting Chart” at the end of this
manual for additional assistance.
Installation Instructions