Bavis BavSonic E&M Manual

201 Grandin Road
Maineville, Ohio 45039
[phone]
BavSonicTM Single Lane
E&M Telephone Audio with
BEAM
Installation and Service Manual
Copyright 2020 E. F. Bavis & Associates, Inc. Revised: 06/15/2020
All Right Reserved PN: 00686081

BavSonic E&M Telephone Audio
Table of Contents
Safety Instructions ...............................................................................................................1
Features ................................................................................................................................2
Telephone Connections ........................................................................................................3
Telephone Diagnostics .........................................................................................................3
Trunk Cartridge Wiring Chart for 568A ..............................................................................4
Trunk Cartridge Wiring Chart for 568B ..............................................................................5
Intercom Connections ..........................................................................................................6
Troubleshooting ...................................................................................................................7
Testing..................................................................................................................................7
Adjusting Audio Levels .......................................................................................................8
Intercom Test Point Diagram & Volume Pots .....................................................................9
BEAM Jumper Configurations ..........................................................................................10
Intercom Wiring Diagram ..................................................................................................11
Interface Mounting .............................................................................................................12
Installation and Service Tool List for Audio .....................................................................13

Revisions:
ECN Date

1
Important Safety Instructions
1. READ THESE INSTRUCTIONS
2. KEEP THESE INSTRUCTIONS
3. HEED ALL WARNINGS
4. FOLLOW ALL INSTRUCTIONS
5. DO NOT USE THIS APPARATUS NEAR WATER
6. CLEAN ONLY WITH A DRY CLOTH
7. DO NOT BLOCK ANY VENTILATION OPENINGS. INSTALL IN ACCORDANCE WITH THE
MANUFACTURER’S INSTRUCTIONS
8. DO NOT INSTALL NEAR ANY HEAT SOURCES SUCH AS RADIATORS, HEAT REGISTERS,
STOVES OR OTHER APPARATUS (INCLUDING AMPLIFIERS) THAT PRODUCE HEAT
9. PROTECT THE POWER CORD FROM BEING WALKED ON OR PINCHED PARTICULARY AT
PLUGS, CONVENIENCE RECEPTACLES AND THE POINT WHERE THEY EXIT THE
APPARATUS
10. ONLY USE ATTACHMENTS/ ACCESSORIES SPECIFIED BY THE MANUFACTURER
11. REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL. SERVICING IS
REQUIRED WHEN THE APPARATUS HAS BEEN DAMAGED IN ANY WAY, SUCH AS POWER-
SUPPLY CORD OR PLUG IS DAMAGED, LIQUID HAS BEEN SPILLED OR OBJECTS FALLEN
INTO THE APPARATUS, THE APPARATUS HAS BEEN EXPOSED TO RAIN OR MOISTURE,
DOES NOT OPERATE NORMALLY OR HAS BEEN DROPPED.
Additional Safety Instructions
WARNING – TO REDUCE THE RISK OF FIRE OR ELECTRONIC SHOCK, DO NOT EXPOSE
THIS APPARATUS TO RAIN OR MOISTURE.
WARNING – AN APPARATUS WITH CLASS I CONSTRUCTION SHALL BE CONNECTED TO A
MAINS SOCKET OUTLET WITH A PROTECTIVE CONNECTION.
THE MAINS PLUG IS USED AS A DISCONNECT DEVICE AND SHALL STAY READILY
OPERABLE.
APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHING AND NO OBJECTS
FILLED WITH LIQUIDS, SUCH AS VASES SHALL BE PLACED ON THE APPRATUS.

2
BavSonic E&M Telephone Audio Features
The BavSonic E&M telephone intercom interface module connects the intercom system of the
drive-thru pharmacy lane to the telephone system. This is a full duplex audio system for
maximum intelligibility. The incoming and outgoing audio levels are adjustable inside the
interface.
The customers at the remote-drive-thru locations can call the pharmacy by depressing the CALL
BUTTON on either lane. This initiates a call to the telephones in the pharmacy that are
programmed to receive them. The pharmacy employees can access each remote lane from the
telephones that are given access. If a customer presses the call button, and the call is not
answered in approximately one minute, the call is terminated for 10 seconds then another attempt
is made. This will happen five times at which point the interface will reset itself awaiting the
next activation of the call button.
Telephone Interface
Power is supplied to the interface through an 110v power cord and is protected by a non-
replaceable 1 amp fuse. The customer will supply the 110v power outlet as well as the
connections from the telephone system to an area under the counter adjacent to the drive-thru
window.
Telephone system requires an E&M port for each lane, and the phone system to be programmed
to connect to the interface. This also is the customer’s responsibility.
These items should be in place, and the phone system programed, before installing the
BavSonicTM E&M Telephone Interface.

3
Telephone Connections
This system is configured for a “TIE LINE” connection to a Nortel/Avaya telephone system.
The telephone system is supplied and installed by those other than E.F. Bavis and Associates.
There will be an E&M Tie Line Card in the telephone system, which is located in the electrical
equipment room. The connections to the telephone use standard CAT 5 wiring. The termination
is a type 568B. The connectors are RJ45. The E&M connections to the Nortel/Avaya system are
referenced to the system ground and system battery. These reference levels are included in the
RJ45 connection
In the programming for the “TIE LINES” the following settings are required by the BavSonic
system. Line type = E&M, Answer = Manual, Answer DISA = NO, Signal = IMMEDIATE,
Gain = NORMAL, Dial Mode = TONE.
Telephone Diagnostics
The WHITE /GREEN STRIPE (E1) wire is referenced to the GREEN (E2) wire. The normal
voltage is 56Vdc with the BROWN wire being positive. After the call button is depressed the
voltage will be less than 1Vdc. This indicates that the intercom is connected to the interface.
This is the “E Lead” sensing. There is a LED for each lane to indicate that the intercom is
connected to the interface.
The BROWN (M1) wire is referenced to the WHITE/BROWN STRIPE (M2) wire. The normal
voltage is 5Vdc with the BROWN wire being negative. The voltage is less than 1Vdc when the
telephone is connected to the interface. This is the “M Lead” sensing. There is a LED for each
lane to indicate that the telephone is connected to the interface.
The BLUE, WHITE/BLUE STRIPE (TRANSMIT) wires are the audio signal coming from the
telephone transmitter going to the intercom speaker. With the lane selected and someone talking
the audio signal is approximately .848Vp-p as measured on an oscilloscope or .3Vrms as
measured on a true rms digital multimeter.
The ORANGE, WHITE/ORANGE STRIPE (RECEIVE) wires are the audio signal coming from
the intercom microphone to the telephone receiver. With the lane selected and someone talking
the audio signal is approximately .848Vp-p as measured on an oscilloscope or .3Vrms as
measured on a true rms digital multimeter.
When connecting to a Cisco phone system, the E&M Telephone Interface system requires one
(1) Transfer or A/B Cat5 patch cable. This cable can be at either at the Interface box or at the
phone server. If there not a Transfer cable, or if there are two cables, the symptom would be that
as soon as the Cat5 cable is connected to the Interface box and the phone server, the phone server
will react as though the call button has been pressed, and/or the line is “Busy”.

4
Nortel/Avaya E&M Trunk Cartridge Wiring Chart
For 568A
SLOT 1 PORT 1 LANE 1 SLOT 1 PORT 2 LANE 2
FROM E&M Service To RJ45 Jack FROM E&M Service To RJ45 Jack
White-Blue T White-Blue White-Slate T White-Blue
Blue-White R Blue Slate-White R Blue
White-Orange T1 White-Green Red-Blue T1 White-Green
Orange-White R1 Green Blue-Red R1 Green
White-Green E White-Orange Red-Orange E White-Orange
Green-White SG Orange Orange-Red SG Orange
White-Brown M White-Brown Red-Green M White-Brown
Brown-White SB Brown Green-Red SB Brown
SLOT 2 PORT 3 LANE 1 SLOT 2 PORT 4 LANE 2
FROM E&M Service To RJ45 Jack FROM E&M Service To RJ45 Jack
Red-Brown T White-Blue Black-Green T White-Blue
Brown-Red R Blue Green-Black R Blue
Red-Slate T1 White-Green Black-Brown T1 White-Green
Slate-Red R1 Green Brown-Black R1 Green
Black-Blue E White-Orange Black-Slate E White-Orange
Blue-Black SG Orange Slate-Black SG Orange
Black-Orange M White-Brown Yellow-Blue M White-Brown
Orange-Black SB Brown Blue-Yellow SB Brown
SLOT 3 PORT 5 LANE 1 SLOT 3 PORT 6 LANE 2
FROM E&M Service To RJ45 Jack FROM E&M Service To RJ45 Jack
Yellow-Orange T White-Blue Violet-Blue T White-Blue
Orange-Yellow R Blue Blue-Violet R Blue
Yellow-Green T1 White-Green Violet-Orange T1 White-Green
Green-Yellow R1 Green Orange-Violet R1 Green
Yellow-Brown E White-Orange Violet-Green E White-Orange
Brown-Yellow SG Orange Green-Violet SG Orange
Yellow-Slate M White-Brown Violet-Brown M White-Brown
Slate-Yellow SB Brown Brown-Violet SB Brown

5
Nortel/Avaya E&M Trunk Cartridge Wiring Chart
For 568B
SLOT 1 PORT 1 LANE 1 SLOT 1 PORT 2 LANE 2
FROM E&M Service To RJ45 Jack FROM E&M Service To RJ45 Jack
White-Blue T White-Blue White-Slate T White-Blue
Blue-White R Blue Slate-White R Blue
White-Orange T1 White-Orange Red-Blue T1 White-Orange
Orange-White R1 Orange Blue-Red R1 Orange
White-Green E White-Green Red-Orange E White-Green
Green-White SG Green Orange-Red SG Green
White-Brown M White-Brown Red-Green M White-Brown
Brown-White SB Brown Green-Red SB Brown
SLOT 2 PORT 3 LANE 1 SLOT 2 PORT 4 LANE 2
FROM E&M Service To RJ45 Jack FROM E&M Service To RJ45 Jack
Red-Brown T White-Blue Black-Green T White-Blue
Brown-Red R Blue Green-Black R Blue
Red-Slate T1 White-Orange Black-Brown T1 White-Orange
Slate-Red R1 Orange Brown-Black R1 Orange
Black-Blue E White-Green Black-Slate E White-Green
Blue-Black SG Green Slate-Black SG Green
Black-Orange M White-Brown Yellow-Blue M White-Brown
Orange-Black SB Brown Blue-Yellow SB Brown
SLOT 3 PORT 5 LANE 1 SLOT 3 PORT 6 LANE 2
FROM E&M Service To RJ45 Jack FROM E&M Service To RJ45 Jack
Yellow-Orange T White-Blue Violet-Blue T White-Blue
Orange-Yellow R Blue Blue-Violet R Blue
Yellow-Green T1 White-Orange Violet-Orange T1 White-Orange
Green-Yellow R1 Orange Orange-Violet R1 Orange
Yellow-Brown E White-Green Violet-Green E White-Green
Brown-Yellow SG Green Green-Violet SG Green
Yellow-Slate M White-Brown Violet-Brown M White-Brown
Slate-Yellow SB Brown Brown-Violet SB Brown

6
Intercom Connections
Note: If there is a separate Incoming Volume Control assembly installed onto the old system,
that Volume Control assembly must be removed.
There is an intercom board (base audio board) located at each of the drive-thru lanes. Note that
the base audio must be calibrated for BEAM use. There will be a label on the base audio board
specifying beam calibration. This board is connected to the telephone interface via standard
CAT 5 wiring. Remote lanes have a Microfit connector for improved weather resistance. First
lanes use a RJ45 plug which is terminated 568B. Each remote intercom board has a LED, which
indicates that it is receiving power. The audio level adjustments on the base audio board are
sealed after they are calibrated. The audio levels are adjusted inside of the interface.
The intercom audio board for the 64” All-In-One window with the E.F. Bavis counter system is
attached to the black laminated or Stainless Steel filler panel under the transaction drawer. For
other window/drawer installations, it will be inside of a 2-1/8” x 3-1/4” x 5-1/4”, Stainless Steel
enclosure. The intercom audio board for the TransTrax is located inside a weatherproof
enclosure, on the customer speaker panel, of the customer unit located on the outside island.
The base audio component connections are as follows: Plug J1 is for the speaker connection.
The connector is a 3-position with positions 1 & 3 being the speaker. For the outside board, plug
J2 is an 8-position Microfit, for the inside board, plug J2 is an 8-position RJ45. Plug J3 is for the
call button connections. The connector is a 4-position with positions 2 & 3 being the button.
Note that positions 1 & 4 are 19vdc power with position 4 being positive. Plug J4 is for the
microphone connection. This connector is a 2-position.
Please see page 11 for an overall wiring diagram of the intercom section.
It is recommended to install the RJ45 connector directly onto the end of the CAT5 cable for the
drive-thru lane. For situations where tooling is not available to attach the RJ45 to the end of the
CAT5 cable for the remote lane(s), we have included a Cat5 Audio Connection Kit, (P/N
22316991) that can be added onto the cable for plug-in connection capability.

7
Troubleshooting
1. Is the RED LED, near the Intercom Connection port, on the face of the enclosure
blinking? If not, check that there is 110 Vac at the outlet.
2. Try the “Loop Back” Testing function described below.
3. If the Call/Help button is pressed, does the “Ringing” LED at the Phone System
connection port come ON? If not, check that the button is working correctly and the
wiring is good.
4. When the lane is picked-up or selected on the buildings phone system, does the “Off
Hook” LED come on? If not, does the phone’s display give you a message, (Unavailable,
or Busy, etc.), or a “Busy” signal? If so the problem is likely to be in the buildings phone
system or programming.
5. Is there no audio for just one direction, or poor quality? If so, check the audio
components for that direction, (Mic, Speaker & wiring).
Testing
The single lane E&M Telephone Audio Interface has a built in test feature. The test feature
works with the system connected to a telephone or not. Pressing the audio test activates the test
mode. Pressing the call button causes the outside microphone to be connected to the outside
speaker at half volume. This mode stays active for 5 minutes or until the call button is pressed
again or the interface is powered down and back up.
Audio System
Test Button
If you have any problems or questions, call the factory for assistance at 1-800-937-3322 and ask
for Audio Technical Support.

8
Adjusting the Audio Levels
This interface has an integral BEAM (Bavis Enhanced Audio Module) module which is a very
powerful voice processing system. This system has both echo cancellation and background noise
suppression.
There are adjustments for both incoming and outgoing audio levels inside the interface. A small
screwdriver is included, to make this adjustment. The adjusters are ¾ turn.
The adjustment procedure is to have someone in a running vehicle in the drive-thru talking to the
technician on the telephone. With the outgoing audio adjusted down, in small increments, turn
the incoming audio level down. Normally there will not be any appreciable reduction in the
sound level at the handset coming from the drive-thru lane. The AGC (automatic gain system)
of the telephone system is automatically reducing the signal to an acceptable level. When the
incoming sound level does decrease, increase the level slightly until the sound comes back up to
the normal level. This setting will give the echo cancellation system maximum range. Then
adjust the outgoing level for usable audio, not excessively loud. Excessive outgoing audio levels
may cause distortion in the incoming audio.
In the interface, there are four (4) configurations available. Selecting the configuration is
performed by moving the jumpers on the headers marked as JP1 & JP2, (See the BEAM Jumper
Configurations illustration). To determine which configuration is currently programmed in,
without opening the enclosure, watch the flashes of the LED near the Intercom Connection port.
Configuration 1: One flash then pause. Each jumper is on only one pin of the JP1 and JP2
headers.
Bypass – Only used for Factory calibration. No alteration of the audio signal.
Configuration 2: Two flashes then pause. JP1 jumper is on both pins and JP2 jumper is on only
one pin.
Normal – Echo Cancellation & Noise reduction.
Configuration 3: Three flashes then pause. JP1 jumper is on only one pin and JP2 jumper is on
both pins.
Extra Magic – Echo Cancellation, Noise reduction, & Speech boost.
Configuration 4: Four flashes and pause. JP1 jumper is on both pins and JP2 jumper is on both
pins.
Reduced Outgoing Audio – There is Echo cancellation and noise reduction with the outgoing
audio volume level reduced.

9
The volume adjustments are located on the controller board as shown in the illustration below.
INCOMING
OUTGOING
VOLUME ADJUSTMENT
INCREASE VOLUME
DECREASE VOLUME
CONTROLLER PROGRAMMING
PORT
VOLUME ADJUSTMENT
TEST POINTS
If the audio cannot be adjusted satisfactorily please consult with the factory.

10
Configuration 1
One flash then pause.
With Plus (+) Sign Sticker:
Bypass - only used for factory calibration. No Magic.
With Minus (-) Sign Sticker:
BavSonic 3/2 Mode
Configuration 2
Two flashes then pause.
Normal - Echo cancellation & noise reduction.
Configuration 3
Three flashes then pause.
Extra Magic - Echo cancellation, noise reduction &
speech boost.
Configuration 4
Four flashes then pause.
Reduced Outgoing Audio - Echo cancellation, noise
reduction & low outgoing audio.
BEAM Jumper Configurations
+ or - Sticker
+
Jumpers
Jumpers
Jumpers
Jumpers
+
+
+
If the audio cannot be adjusted satisfactorily please consult with the factory.

11
Intercom Wiring Diagram
RJ45
CAT5 - 14' LONG
R1
J1
R1
J1
J3 J4
RJ45
LANE 1
WINDOW
J3 J4
LANE 2
REMOTE
AUDIO FROM
OUTSIDE MIC
ORANGE
BROWN
WHITE/BROWN
WHITE/ORANGE
+19 VDC
-19 VDC
BLUE
GREEN
WHITE/BLUE
WHITE/GREEN
AUDIO TO OUTSIDE
SPEAKER CALL BUTTON
BROWN
WHT/BROWN
GREEN
WHT/BLUE
WHT/GREEN
ORANGE
WHT/ORG
BLUE
RJ45
110/120 VOLT
CONNECTION
TO CALL BUTTON TO MIC.
TO SPEAKER
TO CALL BUTTON TO MIC.
TO SPEAKER
8 POS RJ45 TYP
(WIRED 568B)
8 POS MICROFIT
CAT5
OUTGOING VOLUME AND
INCOMMING MIC POTS ARE
FACTORY CALIBRATED
AND SEALED
DO NOT ADJUST
OUTGOING VOLUME AND
INCOMMING MIC POTS ARE
FACTORY CALIBRATED
AND SEALED
DO NOT ADJUST
SEE "Cat5 AUDIO CONNECTION MANUAL"
FOR INSTALLATION
RE-USE EXISTING CABLES

12
Mounting the Interface
There are two “Keyhole” slots in the base of the assembly’s housing to mount the interface.
MOUNTING "KEYHOLE"
MOUNTING "KEYHOLE"

13
Installation and Service Tool List for Audio
1/8” And 3/8” Flathead Screwdrivers
#0 And #2 Phillips Screwdrivers
1/16” And 3/32” Allen Wrenches
1/2" Open-End Wrench
1/4", 5/16”, 11/32”, 3/8”, And 1/2" Nut Drivers
Wire Cutters
Wire Strippers
Wire Crimpers
RJ45 Connector Crimpers & Connectors
Volt Meter
Electric Drill
Drill Bits
Level
7/8” Unibit
Fish Tape
Loctite