3M Food Services Trade Department
3M Center
St.
Paul,
MN
55144-1000
©
3M
2001
20011203
Intercom Systems
Accessories
Technical Bulletin 12/3/01
A200BA and A201BA Magnetic Loop Detectors
We have redesigned the Model A200/A201 Magnetic Loop Detectors for improved effectiveness. The
wiring configuration and part numbers will be identical to the previous models. We will discontinue the
Model 917-2 Detector. The redesigned detectors are designated as follows:
Detector, Magnetic Loop, External, Model A200BA, 78-9236-6456-5
Detector, Magnetic Loop, Internal, Model A201BA, 78-9236-6498-7
A300 Audio Greeter
When using the Model A300 Audio Greeter with a C921BA Base Station, any message playing over the
menu speaker will be cancelled when the order-taker presses the TALK button for at least one second. A
short tap of the TALK button will cancel only the alert tones, allowing the message to continue, and be
heard in the headset/beltpack.
These features are available if all connections are made as shown in Figure 4 in the A300 Installation
Instructions. The A300 internal DIP SW2-8 must also be set to ON. This will mute the menu
microphone during the message. The message will continue to be heard in the headset/beltpack via the
AUDIO IN terminal on the base station.
Accessory Microphones, Flexible
We recently changed the manufacturing process for the flexible microphones, which are used primarily
with the older D-Series intercoms. They are functionally the same as the past models. The wire colors
have changed. Please note the wiring installation diagram shown in Figure 1.
Microphone, Flexible, Normally Open, 78-8010-4873-3
Microphone, Flexible, Normally without Switch, 78-8010-4847-7
WHITE
GREEN
RED
BLACK
SHIELD
ON
BLUE
BLACK
NC
NO NC
NO
CARTRIDGE
Figure 1. Flexible Microphone Wiring Diagram
Summary of Contents for C860
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