3M 2475, 2470 User Manual
Wired Intercom System
Performance Series
Models 2470 and 2475
Installation Instructions
FCC Information
This device complies with part 15 of the FCC rules. Operation is subject to the
following conditions:
• This device must not cause harmful interference.
• This device must accept any interference received including interference that may cause
undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could
void the user’s authority to operate the equipment.
3M (IPC) 2002. All rights reserved.
Call (800) 328-0033
Performance Series
Revision Record
Date Revision Reason For Change
2/02/02 01 Preliminary manual released
4/08/02 02 Preliminary second draft
4/11/02 03 Preliminary third draft
4/15/02 A Manual Released
4/19/04 B Revisions made
Front Matter
i
Front Matter
System Components.................................................................................... 1
I/O Card and Noise Reduction Module Installation ................................ 2
I/O Card Installation ................................................................................................ 2
3M Model A125, Noise Reduction Module, Installation (Optional).................... 3
Component Placement................................................................................ 4
Communications Controller..................................................................................... 4
Power Supply........................................................................................................... 4
Call Stations............................................................................................................. 5
Station Selectors ...................................................................................................... 5
Wiring the System....................................................................................... 6
Configuration Worksheets....................................................................................... 7
Wiring Call Stations ................................................................................................ 7
Wiring Station Selectors.......................................................................................... 7
Wiring Communications Controller ........................................................................ 8
Performance Series
Table of Contents
Initializing the System ................................................................................ 9
System Mode Selection: .......................................................................................... 9
Initialization instructions for Pump Mode (factory default).................................... 10
Initialization Instructions for Island Mode .............................................................. 10
Programming the System ........................................................................... 11
Programming State .................................................................................................. 11
Error Message.......................................................................................................... 12
Parameter Selection ................................................................................................. 12
Keypad Function Definitions (for Text entry) (Programming State) ...................... 15
Adjusting the System .................................................................................. 17
Inbound Audio Volume Level................................................................................. 17
VOX (Voice Operated Transmission) Sensitivity Level ......................................... 17
Outbound Talk Volume Level................................................................................. 17
Outbound Music/Messaging Volume Level (Only for systems that use
Music/Messaging) ...................................................................................... 18
Testing the Functions............................................................................................... 18
Configuration Worksheets ......................................................................... 19
ii
Performance Series
System Components
System Components
The Performance Series Intercom System consists of:
• A minimum of one Model 2475 Station Selector
• One Model 2470 Communications Controller
• A maximum of 24 Call Stations
The system provides two-way audio communication between the Station Selector and the 24 call stations. The
system also provides communications between station selectors. It is a single channel, half-duplex, wired system.
Figure 1 shows the components.
Figure 1. D-2400 Intercom System Components
Material Required (Not Supplied)
• Assortment of screws, anchors, and cable clamps.
• Sufficient twisted pair sets of audio cable to connect other components such as Station Selector, Call Stations,
etc. See Figure 1.
!
Important
The wires for the speaker connection must be twisted pairs and shielded for proper operation.
1
I/O Board and Noise Reduction Module
Installation
I/O Card and Noise Reduction Module Installation
Performance Series
I/O Card Installation
Figure 2. I/O Card Installation
Be sure the system is powered off!
1. Remove 4 screws on each side of the Communications
Controller cover.
2. Remove cover.
Note: Insert I/O cards beginning from connector J5. Add
additional I/O cards sequentially (J6, J7, etc.).
3. Remove slot cover and mounting screw. Refer to Figure 2.
4. Remove all terminal blocks from edge of I/O card.
5. Insert I/O card into I/O connector by pressing gently into
place.
6. Use slot cover mounting screw to secure I/O card to
chassis.
7. Insert terminal blocks into I/O card station ports.
8. Repeat until all I/O cards are installed.
9. Replace cover and 8 screws.
!
Important
A larger power supply must be used if more than four (4).
I/O cards are installed. Use D2470-20 power supply Part
Number 78-8117-4153-3 when more than four (4) I/O cards
are installed.
After the larger power supply is installed, Remove the
following Warning label:
Do not add any I/O cards to these slots
unless power supply output rating exceeds 4
Amps. See installation instructions for
WARNING
details.
Note
If adding additional I/O cards after initial installation, you must re-
program parameter 03, “max stations.”
2
Performance Series
I/O Card and Noise Reduction Module
Installation
3M Model A125, Noise Reduction
Module, Installation (Optional)
Figure 3. Noise Reduction Module
Installation
Be sure the system is powered off!. Refer to Figure 3.
The optional 3M™ A125 Noise Reduction board (3M part
number 78-9236-6453-2) improves the inbound intelligibility
of an intercom system by reducing environmental background
noise from vehicles, airplanes, noisy intersections, wind, etc.
1. On the A125 circuit board, set the jumpers and
switches as follows:
• Set JMP1 and JMP2 to position A.
• Set SW1 number 1 ON
• Set SW1 number 2 ON
• Set SW1 number 3 as desired:
-- With SW1 number 3 OFF, the A125 is set for
restaurant noise reduction.
-- With SW1 number 3 ON, the A125 is set for
truck stop noise , which provides more noise
reduction with slightly more voice degradation.
• Set SW1 number 4 as desired:
-- With SW2 number 4 ON, the higher-end
frequencies are increased by 3 dB. This should
be set to the customer’s preference.
• SW1 numbers 5 and 6 are not used.
2. Remove 4 screws on each side of Communications
Controller cover.
3. Remove cover.
4. Plug Noise Reduction Module ribbon cable into
Connector J12.
5. Use upper and lower mounting brackets to secure
Noise Reduction Module to Communications
Controller chassis as shown in Figure 3.
6. On the Model 2470 circuit board, Set JMP1 to open.
LED1 (adjacent to JMP1) blinks when noise reduction
module is active.
7. Replace cover and 8 screws.
3
Component Placement
Component Placement
This section describes placement of the Performance Series Intercom System components:
Communications Controller
For proper system operation, locate the Communications Controller:
1. Near the conduit termination of the Call Station wiring.
2. Near the power source.
3. At least 10 feet away from electrical noise sources such as the following:
- large electrical motors (such as air conditioners, freezers, and coolers)
- any electrical components that arc (i.e., relays)
- ballasts (for light fixtures)
4. In a secure room away from traffic.
5. Approximately 5 feet above the floor.
6. Where it is accessible from the top, bottom, and both sides.
Performance Series
7. In a dry and heated (between 50° and 100° Fahrenheit) location.
See Figure 4.
Power Supply
Locate the power supply as follows:
1. Install the power supply mounting bracket in a preferred location, as shown in Figure 4.
2. Insert the power supply transformer into the mounting bracket, as shown in Figure 4.
Figure 4. Suggested Communications Controller Placement
4
Performance Series
Call Stations
For proper system operation, install the Call Stations in locations:
1. Chosen for ease of use.
2. At least 48 inches above the pavement.
Note
Local codes may dictate placement of call stations.
Component Placement
Figure 5. Suggested Call Station Placement
Station Selectors
For proper system operation, locate the Station Selectors:
1. At locations chosen for maximum efficiency.
2. On counters, mounted on pedestals, or mounted on walls.
3. In dry and heated areas.
Figure 6. Suggested Station Selector Station Placement
5
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