Inter-m SC-9216R User manual

SC-9216R Speaker Line Checker
SC
SPEAKER LINE CHECKER
9216R
ENTER BUZZER OFF
FAULT
POWER
OFF
ON
OP. MODE
UP
CURSOR
DOWN
LEFT RIGHT
B370031OC03OC03
0210

Contents
Contents
Welcome
Warning.........................................................................................................................................1
Unpacking......................................................................................................................................2
Short Form Instructions.....................................................................................................................2
Installation
Environment....................................................................................................................................3
Important Safety Instructions.............................................................................................................3
Description.......................................................................................................................................4
Features............................................................................................................................................4
Front Panel ......................................................................................................................................5
Rear Panel .......................................................................................................................................6
Operation ........................................................................................................................................7
Tests ................................................................................................................................................10
Applications ..................................................................................................................................16
Block Diagram ..............................................................................................................................19
Specifications ................................................................................................................................20
Service
Procedures....................................................................................................................................21
Schematic.....................................................................................................................................21
Parts List .......................................................................................................................................21
Variations and Options ...............................................................................................................21
Warranty .......................................................................................................................................21

1
SC-9216R
SPEAKER LINE CHECKER
Welcome
Welcome
A personal welcome to you from the management and employees of Inter-M
All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value,
and we are delighted you have purchased one of our products.
We sincerely trust this product will provide years of satisfactory service, but if anything is not to your complete
satisfaction, we will endeavor to make things right.
Welcome to Inter-M, and thank you for becoming part of our worldwide extended family!
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
*Do not install this equipment in a confined space such as a book case or similar unit.
*The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus.
*Worded: “WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING-WATER AND MOISTURE: Unit should not be used
near water(e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken
so than objects do not fall and liquids are not spilled into the enclosure through openings.”
This symbol is intended to alert the user to the
presence of uninsulated “dangerous voltage” within
the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.
This symbol is intended to alert the user to the
presence of important operation and maintenance
(servicing) instructions in the literature accompanying
the appliance.
Caution: To prevent electric shock do not use this (polarized) plug with
an extension cord, receptacle or other outlet unless the blades
can be fully inserted to prevent blade exposure.
Attentions: Pour prévenir les chocs électriques ne pas utiliser cette
fiche polarisée avec un prolongateur, une prise de courant
on une autre sortie de courant, sauf si les lames peuvent
étre insérées à fond sans en laisser aucune partie à
découvert.

2SC-9216R
SPEAKER LINE CHECKER
Unpacking
Please take a few minutes to read this manual to familiarize yourself with important information regarding
installation, product features, and operation.
As with most electronic devices, ORIGINAL PACKAGING (OR EQUAL) IS REQUIRED in the unlikely event that
the product needs to be returned for servicing.
Short Form Instructions
The Short Form instructions have been divided into two sections. One for initial operation, which includes the set-
up procedure, and one for routine operation of an existing system.
For initial operation only
1. Switch OFF the AC mains to the SC-9216R and the system amplifier(s).
2. Terminate the inputs and outputs of the SC-9216R
3. Switch ON the AC mains to the SC-9216R. Other components may be switched ON as well.
4. Select which channels will be tested or omitted from testing.
5. Clear all previously stored settings
6. Create new reference values for channels being tested.
7. Create a new test interval if desired (1 hour default).
8. Wait for automatic test or perform a manual test.
9. In the event that a fault was detected consult the information indicated in the display.
For routine operation of an existing system
1. Switch ON the AC mains to the SC-9216R. Other components may be switched ON as well.
2. Wait for automatic test or perform a manual test.
3. In the event that a fault was detected consult the information indicated in the display.

3
SC-9216R
SPEAKER LINE CHECKER
Installation
Installation
Environment
Never place this product in an environment which could alter its performance or reduce its service life. Such
environments usually include high levels of heat, dust, moisture, and vibration.
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 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. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide
blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and
the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. 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 have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or has
been dropped.
S3125A
S3125A

4SC-9216R
SPEAKER LINE CHECKER
Features
Features
- COMPACT 2RU (3.5”) DESIGN
This device only occupies two vertical spaces in a standard equipment rack.
- Automatic or manual test capability.
- Display screen indicates complete loudspeaker system status for up to 32 channels.
- Operates on AC mains or DC power.
Description
Description
The SC-9216R is a 16 channel speaker line tester that may be expanded to 32 channels with the use of the
SC9116R. It automatically performs tests on speaker lines and can indicate fault conditions audibly or via the
display screen. The product is easy to operate and has many useful capabilities.

5
SC-9216R
SPEAKER LINE CHECKER
Front Panel
Front Panel
1. LCD DISPLAY
This display indicates the status of operation and system conditions.
2. OP MODE BUTTON
This button is used to navigate the various settings and modes of the product.
3. CURSOR BUTTONS
These buttons are only active during certain operations to select channels or adjust time settings.
4. FAULT LED
Indicates that one or more faults were identified during the most recent test.
5. POWER LED
This confirms that the AC Mains power has been switched ON or OFF.
6. ENTER BUTTON
This button is only active during certain operations as needed to activate operational commands.
7. BUZZER-OFF BUTTON
This button will stop the fault indicator buzzer sound until it reactivates due to a fault condition during a
subsequent test.
8. POWER SWITCH
This switches ON and OFF the AC Mains power to the product.
SC
SPEAKER LINE CHECKER
9216R
ENTER BUZZER OFF
FAULT
POWER
OFF
ON
OP. MODE
UP
CURSOR
DOWN
LEFT RIGHT
12 345
678

6SC-9216R
SPEAKER LINE CHECKER
Rear Panel
Rear Panel
1. AC INLET & FUSE HOLDER
Connect the cable to AC inlet and outlet. The fuse holder contains the AC overload protection fuse. If the fuse
has blown out, replace it with a fuse of the same type and rating.
2. EXPANSION CONNECTOR
Only the SC-9116R should be connected to this connector using the supplied cable.
3. EXTERNAL INPUT TERMINAL
This connection enables the test operation to be paused from a remote location.
4. CHECK-OUT TERMINAL
This connection enables operation to be verified from a remote location.
5. FAULT 1, 2 TERMINAL
This connection enables faults to be indicated to be indicated from a remote location.
6. 24VDC TERMINALS
These terminals are for 24VDC power input.
7. AMP IN & SPEAKER LINE CONNECTION TERMINAL
These terminals are provided for connection with the speaker level input/output signals.
8. CHANNEL SELECT SWITCH
The position of these switches determines whether a specific channel will be included in the testing process.
TO SC-9116R
CHECKING CHANNEL
DC 24V INPUT, 11W
EXT. IN
CHECK OUT
12
FAULT
OUT
16~9 8~1
www.inter-m.com
4321 5678
ON
43215
678
ON
CHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
CH 1CH 2CH 3CH 4CH 5CH 6CH 7CH 8
CHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
CH 9CH 10CH 11CH 12CH 13CH 14CH 15CH 16
TO
SPEAKER
FROM
AMP
12 3456
78
~AC INPUT : 230V 50Hz, 11W
FUSE : T250mAL / 250V
SN
OC03OC03
0210
MADE IN KOREA
MODEL NO. SC-9216R
SPEAKER LINE
CHECKER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN

7
SC-9216R
SPEAKER LINE CHECKER
Operation
Operation
Operational instructions are divided into three main categories. The first category includes details required for
the initial setup and operation for a new system installation, or if changes have been made to an existing system.
The second category includes operational details for routine tests of an existing system. The third category
includes instructions to facilitate advanced capabilities that are not generally required in most applications.
Display images associated with these instructions may be found in the Display portion of this manual. The
corresponding image number(s) is listed after each step number [in brackets] that pertains to a display.
- INITIAL OPERATION
1. Switch OFF the AC mains (and/or DC power) to the SC-9216R using the power switch located on the front
panel. As a precaution, the system amplifier(s) should be switched OFF as well.
2. Terminate the amplifier output wires to an available channel on the SC-9216R via the screw terminals marked
“AMP IN”. Be sure to observe polarity (+/-) throughout the termination process.
3. Terminate the speaker input wires to the terminals on the SC-9216R marked “AMP OUT” which correspond to
the desired amplifier channel.
After these steps are completed, other system electronics may be switched ON and the system operated
normally. The SC-9216R will function properly with the amplifier(s) and/or other system components switched
OFF or ON.
4. Position the Channel Check switches in the desired position for each channel of the SC-9216R. The UP (OFF)
position means the channel will not be checked. The DOWN (ON) position means that the channel will be
checked.
5. Switch ON the AC mains to the SC-9216R. The display will flash the product description three times and then
indicate the Test Interval and time remaining until the next automatic test. In the event that an automatic test
occurs before step 6 see 5A.
5a. Do not interrupt a test. If the test completes without triggering a fault display or buzzer sound, proceed
with step 6. If a fault is found or the buzzer sounds, see step 5B.
5b. The BUZZER OFF button may be used anytime after the buzzer sound is no longer constant. The fault
indicator and associated Buzzer sound is in response to one or more channels testing differently than the
previously stored setting. Since the SC-9216R has not been set up for the system as currently configured,
the fault indication does not necessarily mean a fault exists. Proceed with step 6 once the test is complete
and FAULT FOUND is displayed.
6. Depress the OP MODE button several times to navigate to the MEMORY CLEAR display. Depress ENTER to
clear all previously stored settings. The display will indicate the test interval has been reset to 1 hour (the
factory default), followed by the product description, and also shows the time remaining until the next test.
7. Depress the OP MODE button as needed to navigate to one of the four ALL STORE modes that most closely
represent the system configuration, then Depress ENTER. The SC-9216R will automatically cycle through each
channel to establish a reference value for each channel. A clicking sound may be heard as the unit cycles
through each channel (relays opening and closing). Once completed, the Test interval and time remaining
until the next test will be indicated on the display.
8. Once the test interval and time remaining until the next test is indicated on the display, the test interval may be
changed as described in step 9.

8SC-9216R
SPEAKER LINE CHECKER
9. Depress the OP MODE button several times to navigate to the TEST INTERVAL SET display. Set a new Test
Interval using the four CURSOR buttons and then depress ENTER. The new Test Interval time will be indicated
on the display. The display will then change to reveal the time remaining until the next test. Maximum time is
24 hours, minimum time is 1 minute. The default setting is 1 hour.
10. The SC-9216R will conduct a test automatically according to the Test Interval setting as indicated on the
display screen. The test will result in either “normal” or “fault found”. If all channels tested normally, the
product will display the Test Interval screen and begin the count down until the next test. If one or more faults
were identified in the test, these will be indicated in the display as described in step 11.
11. The Fault (or problem) associated with any channel(s) which failed the test will be indicated in the display
along with a recommendation to have the channel(s) serviced. This Fault display mode will remain in effect
until the next automatic test sequence or until the Op Mode button is depressed. All displays except for the
fault display will eventually return to the test Interval display.
- ROUTINE OPERATION
Operating an existing system.
1. Switch ON the AC mains to the SC-9216R using the POWER button on the front panel. The display will flash
the product description three times and then indicate the time remaining until the next automatic test. The SC-
9216R will function properly with the amplifier(s) and/or other system components OFF or ON. Other system
electronics may be switched ON and the sound system will operate normally whether or not the SC-9216R is
switched ON.
2. A clicking sound may be heard as a test is conducted on each channel. This sound is normal (caused by
relays sequencing) and is not a cause for concern.
3. If all channels test normally the display will indicate the time remaining until the next test.
4. If a fault is detected on one or more channels the Fault indicator will illuminate, the Buzzer will sound, and the
display will indicate “Fault Found”. The Buzzer will sound continuously for the remainder of the test and then
will cycle on/off repeatedly once the test is complete. At this time the BUZZER may be switched off using the
BUZZER OFF button.
5. The Fault (or problem) associated with any channel(s) which failed the test will be indicated in the display
along with a recommendation to have the channel(s) serviced. This Fault display mode will remain in affect
until either the next automatic test or until the Op Mode button is depressed. All displays except for the fault
display will eventually return to the display that indicates the time remaining until the next test.
6. Steps 2-4 will repeat automatically according to how the Time Interval has been set. See step 8 in the Initial
Operation instructions to change the Time Interval.
7. The SC-9216R may be switched OFF (and back ON again) at anytime without affecting system performance.
- ADVANCED OPERATION
This section assumes and requires that the reader clearly understands both the Initial Operation and the Routine
Operation instruction.
SC-9216R Advanced Overview
Reference Parameters
The SC-9216R has the ability to “look” at a speaker system (or load), check the impedance on the line, and store
that impedance as a reference value to compare against future impedance tests. The reference impedance may
not agree with other “outside” impedance measurements or calculations for a variety of reasons, but most
importantly because the SC-9216R conducts the measurements at approximately 15kHz which normally is not
the frequency used to determine the impedance of a loudspeaker. The test voltage is 5 Volts and of a duration of

9
SC-9216R
SPEAKER LINE CHECKER
less than 100ms. Because the test volume is relatively low, and the duration so short, the test is very subtle
(generally inaudible) and may be performed while the system is in use.
Reference values are established by depressing the Op Mode button several times until the desired “Save”
options are displayed, then depressing the ENTER button. These options include menus that allow ALL channels
to be changed at once or a SINGLE channel to be changed individually without affecting the settings of other
channels. The act of establishing a Reference value deletes the previously stored Reference as does activating the
Memory Clear function. Options include a choice between W or Z and 70V or 100V. One must be selected but
the selection may be done arbitrarily in most applications. The Z selection was primarily provided to facilitate
possible future product upgrade capabilities. The 70V and 100V selections allow displayed impedance values to
be compared with system documentation or used in creating “as builts”. A wide deviation may occur in such
comparisons and is generally not cause for concern. Either the 70V or 100V selection may be used with 25V or
140V systems but the impedance displayed will deviate significantly from published system component
documentation. Test reliability will not be affected.
Be sure to only store reference values when the speaker channel or system is properly configured. If for example,
an “open circuit” is stored as the reference, then the test will not identify an open circuit as a problem.
Speaker Attenuators.
Use of speaker attenuators (or volume controls) in a speaker line will result in a change in impedance with
changes in attenuation settings. This impedance change may result in a Fault indication on the SC-9216R and
the SC-9116R (expander). The following actions are recommended when a speaker attenuator is on the line.
These instructions apply to channels in which changes to an attenuator is permitted and should not result in a
Fault indicator.
1. Verify that the speaker channel is operating normally.
2. Adjust the attenuator to the minimum attenuation position.
3. Save the current condition of this channel as the Reference value. Single channels may be saved without
saving all channels at once.
4. Switch the channel check switch to the OFF position for this channel only. This switch will be found on the
rear of the SC-9216R/SC-9116R.
5. Return the attenuator to the desired operating position and continue with normal operation.
6. This channel will not be checked while the switch remains in the OFF position.
7. The channel may be checked by adjusting the attenuator to the minimum attenuation position and switching
ON the channel check selector.
These instructions apply to channels in which changes to an attenuator is not permitted and should result in a
Fault indicator.
1. Verify that the speaker channel is operating normally.
2. Adjust the attenuator to the desired position for normal operation.
3. Save the current condition of this channel as the Reference value. Single channels may be saved without
saving all channels at once.
4. Subsequent changes to the attenuator will indicate a Fault. It is possible that opposing changes to two or more
attenuators could net the same impedance as the reference impedance and the changes not be detected. See
Fault Criteria.

10 SC-9216R
SPEAKER LINE CHECKER
Tests
Tests
- AUTOMATIC TESTS
This is the type of test described in the Initial Operation and Routine Operation portions of this manual.
An internal timer has been set to conducts tests automatically at intervals ranging from 1 minute to 24 hours.
- MANUAL TESTS
Tests may be conducted manually, thus temporarily overriding the timer (automatic) setting. This allows a test to
be conducted at will without waiting for the next test interval or having to change the timer setting. To manually
conduct a test, depress the Op Mode button several times as needed until the “Single Check” or “All Check”
menu appears in the display, then depress ENTER. Automatic operation will resume after the manual test has
been completed.
- FAILURE CRITERIA
Ground Fault..........................................................................................Ground fault condition
Line Open ....................................................................................... > 125% of reference value
Line Impedance High...............................................................115% to 125% of reference value
Line Impedance Normal................................................................85%-115% of reference value
Line Impedance Low....................................................................75% to 85% of reference value
Line Short ...........................................................................................< 75% of reference value
- REMOTE CAPABILITIES
Remote interrupt (EXT. IN)
The SC-9216R includes a provision for contact closure at a remote location to pause operation. Normal
operation resumes when the contact closure is released.
Remote fault indicator (FAULT OUT 1,2)
The SC-9216R includes a provision for a fault indicator at a remote location. Remote fault indicators are not
provided by Inter-M and must be custom designed and fabricated for the particular requirements of each
particular application. A block diagram of basic system elements is provided to assist in the design of a remote
fault indicator though this assistance will not be sufficient for every need.
Remote check indicator (CHECK OUT)
The SC-9216R includes a provision for a remote check indicator at a remote location. Remote check indicators
are not provided by Inter-M and must be custom designed and fabricated for the particular requirements of each
particular application. A block diagram of basic system elements is provided to assist in the design of a remote
check indicator though this assistance will not be sufficient for every need.

11
SC-9216R
SPEAKER LINE CHECKER
- CREATING A CUSTOM REMOTE PANEL
Remote devices are not available for this product from the factory. A block diagram is provided to aid in the
design of remote devices, although this particular diagram may not be suitable for all applications.
TO SC-9116R
CHECKING CHANNEL
DC 24V INPUT, 11W
EXT. IN
CHECK OUT
12
FAULT
OUT
16~9 8~1
www.inter-m.com
4321 5678
ON
43215678
ON
CHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
CH 1CH 2CH 3CH 4CH 5CH 6CH 7CH 8
CHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
CH 9CH 10CH 11CH 12CH 13CH 14CH 15CH 16
TO
SPEAKER
FROM
AMP
~AC INPUT : 230V 50Hz, 11W
FUSE : T250mAL / 250V
SN
OC03OC03
0210
MADE IN KOREA
MODEL NO. SC-9216R
SPEAKER LINE
CHECKER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
123
1. CHECK-OUT
2. FAULT-OUT-1
3. FAULT-OUT-2
LED or Buzzer
EXT.IN
SWITCH
VR(Variable Resistor)
GND DC-POWER
+5~+24V

12 SC-9216R
SPEAKER LINE CHECKER
Display
Display
The following display information is representative of the display information on the front panel of the SC-
9216R. It is provided to inform the system operator of various system settings, status, and when system servicing
is recommended. Each display is intended to be as informative as the limited space will allow. A brief
description of each display is provided below along with a display number. This number corresponds to the
associated text in the operational instructions in this manual.
1. Product Description
This screen flashes three times during when the AC mains is switched on to
identify the product and its capabilities. The SC-9216R is capable of
checking 16 channels and may be expanded to a total of 32 channels with
the use of the SC-9116R
2. Test Interval
This screen is the default screen. It identifies the time span between automatic
tests and the time remaining until the next automatic test occurs. The factory
default time is 1 hour. Operators may change this setting to a minimum of 1
minute or maximum of 24 hours. A test may be conducted at any time without
waiting for the next scheduled as described in the manual tests section.
3. Test Interval Set
This screen is used only for changing the time span between automatic tests.
The display indicates the current setting as “OLD”. The new setting is
established by navigating the four cursor buttons on the front of the SC-
9216R. The Left and Right buttons move the position of the cursor to the
desired digit. The Up and Down buttons change the value of the digit
selected. One minute (0:01:00) is the minimum time, twenty four hours (24:00:00) is the maximum time. The
factory default is one hour (01:00:00)
4. Memory clear
Depressing the ENTER button when this screen is displayed will erase all
previously stored settings and return to the defaults set by the factory. This
action will require all new references to be stored into the product.
16 Ch. Speaker
Line Checker
or 32 Ch. with
SC-9116R
Test Interval
1:00:00
NEXT TEST IN
0:59:59
Test Interval
OLD 1:00:00
NEW 1:00:00
1 min. to 24 hrs.
Press ENTER to
CLEAR MEMORY.
New Settings
will be required.

13
SC-9216R
SPEAKER LINE CHECKER
5. 1 of 4 All Store
ALL STORE will store new reference values for all channels. One of the four system configurations (4-1, 4-2,
4-3, 4-4) must be selected though in most applications it does not matter which one is used. The selection
process is described in the Advanced Operation section of this manual. Selecting 4a is generally suitable.
6. 1 of 4 Single Store
SINGLE STORE will store new reference values only on the channel indicated on the display. Channel
selection is performed by depressing the Up and Down cursor buttons on the front of the SC-9216R, then
depressing ENTER. One of the four system configurations (5-1, 5-2, 5-3, 5-4) must be selected though in most
applications it does not matter which one is used. The selection process is described in the Advanced
Operation section of this manual. Selecting 5-1 is generally suitable.
7. 1 of 5 Fault Found
The FAULT FOUND display will indicate which channel has any one of five different types of faults, with a
recommendation to have the system serviced. The failure criteria are listed with the failure modes in the
specifications section and the failure criteria section of this manual.
[5-1] [5-2]
Store new Ref.
On ALL CHANNELS
press ENTER.
(Spk W x 70V)
Store new Ref.
On ALL CHANNELS
press ENTER.
(Spk W x 100V)
[5-3] [5-4]
Store new Ref.
On ALL CHANNELS
press ENTER.
(Spk Z, 70V)
Store new Ref.
On ALL CHANNELS
press ENTER.
(Spk Z, 100V)
[6-1] [6-2]
Store new Ref.
On CHANNEL XX
press ENTER.
(Spk W x 70V)
Store new Ref.
On CHANNEL XX
press ENTER.
(Spk W x 100V)
[6-1] [6-2]
Store new Ref.
On CHANNEL XX
press ENTER.
(Spk Z, 70V)
Store new Ref.
On CHANNEL XX
press ENTER.
(Spk Z, 100V)
[7-1] [7-2]
Fault Found
Service Required
Ch. 9
Line Open
Fault Found
Service Required
Ch. 17
Line Imp. High

14 SC-9216R
SPEAKER LINE CHECKER
8. 1 of 2 Test in progress
These are the 2 display screens that will appear during a test. The first screen indicates the channel currently
being tested along with its reference impedance value. The second screen indicates the result of the test and
the impedance of the line at the moment of the test. The Buzzer will sound continuously once any channel has
failed a test. The BUZZER OFF button may be depressed after all channels have been tested and the Buzzer
cycles on and off.
9. Remote Pause
All functions of the SC-9216R and the SC-9116R expander may be paused by a remote switch (not supplied).
Operation will not continue until the remote has been switched back to the operating position. This is
described in greater detail in the Remote section of this manual.
10. 1 of 4 All Check
ALL CHECK will manually cause a test to occur without waiting for the next scheduled automatic test. One of
the four system configurations (4-1, 4-2, 4-3, 4-4) must be selected though in most applications it does not
matter which one is used. The selection process is described in the Advanced Operation section of this
manual. Selecting 4a is generally suitable.
[7-3] [7-4]
Fault Found
Service Required
Ch. 24
Line Imp. Low
Fault Found
Service Required
Ch. 30
Line Short
[8-1] [8-2]
Test in
progress.
Ch. 1, Ref=XXX
Line Normal
Test in
progress.
Ch. 1, New=XXX
Ground Fault
[10-1] [10-2]
To test
ALL CHANNELS
press ENTER.
(Spk W x 70V)
To test
ALL CHANNELS
press ENTER.
(Spk W x 100V)
[9-1] Operation paused
by remote.
Resume operation
by remote.
[7-5] Fault Found
Service Required
Ch. 32
Ground Fault

15
SC-9216R
SPEAKER LINE CHECKER
11. 1 of 4 Single Check
SINGLE CHECK will manually cause a test to occur, only on the channel indicated on the display, without
waiting for the next scheduled automatic test. Channel selection is performed by depressing the Up and Down
cursor buttons on the front of the SC-9216R, then depressing ENTER. One of the four system configurations
(5-1, 5-2, 5-3, 5-4) must be selected though in most applications it does not matter which one is used. The
selection process is described in the Advanced Operation section of this manual. Selecting 5-1 is generally
suitable.
[10-3] [10-4]
To test
ALL CHANNELS
press ENTER.
(Spk Z x 70V)
To test
ALL CHANNELS
press ENTER.
(Spk Z x 100V)
[11-1] [11-2]
To test
CHANNEL XX
press ENTER.
(Spk W x 70V)
To test
CHANNEL XX
press ENTER.
(Spk W x 100V)
[11-3] [11-4]
To test
CHANNEL XX
press ENTER.
(Spk Z x 70V)
To test
CHANNEL XX
press ENTER.
(Spk Z x 100V)

16 SC-9216R
SPEAKER LINE CHECKER
Applications-1
Applications-1
TO SC-9116R
CHECKING CHANNEL
DC 24V INPUT, 11W
EXT. IN
CHECK OUT
12
FAULT
OUT
16~9 8~1
www.inter-m.com
4321 5678
ON
43215678
ON
CHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
CH 1CH 2CH 3CH 4CH 5CH 6CH 7CH 8
CHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
CH 9CH 10CH 11CH 12CH 13CH 14CH 15CH 16
TO
SPEAKER
FROM
AMP
~AC INPUT : 230V 50Hz, 11W
FUSE : T250mAL / 250V
SN
OC03OC03
0210
MADE IN KOREA
MODEL NO. SC-9216R
SPEAKER LINE
CHECKER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
4321 5678
ON
43215678
ON
CHECKING CHANNEL
16~9
CHCHCHCHCHCHCHCHCHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
8~1
TO SC-9216R
CH 1
CH 2CH 3CH 4CH 5CH 6CH 7CH 8
CHCHCHCHCHCHCHCH
CH 9CH 10CH 11CH 12CH 13CH 14CH 15CH 16 SN
www.inter-m.com
OC03OC03
0210
TO
SPEAKER
FROM
AMP
DC OUT
DC IN
NORMAL RELAYCH 1CH 2CH 3CH 4CH 5CH 6CH 7CH 8AMP INCH 9CH 10CH 11CH 12CH 13CH 14CH 15CH 16
EM RELAYSPEAKER OUT(1-8) SPE AKER OUT (9-16)
(HOT)
(COM)
CH-16 CH-15 CH-14 CH-13 CH-8 CH-7 CH-6 CH-5
RELAY GROUP
SPEAK ER
IN(CH1~CH8)
SPEAK ER
IN(CH9~CH16)
CH-12 CH-11 CH-10CH-9 CH-4 C H-3 CH-2 CH -1
S/N
CH-32 CH-31 CH-30 CH-29 CH-24 CH-23 CH-22 CH-21
RELAY ROUP
SPEAK ER
IN(CH17~CH24)
SPEAK ER
IN(CH25~CH32)
CH-28 CH-27CH-26CH-25 CH-20 CH-19 CH-18CH-17
EM COM HO T EM CO M HOT EM COM HO T EM CO M HOT EM COM HO T EM CO M HOT EM COM HO T EM CO M HOT
PA-9324
(PA-9312)
SC-9116R
SC-9216R
RG-9116
PX-9116
PS-9116I
TB-9232
(TB-9116)
PD-9359 A.C OUTLET (SWED OR UNSWED)
DC IN
SPEAKER SELECTOR
DC OUT
MADE IN KOREA
MODELNO.PS-9116
INDI RECT SPEAKE R
SELECTOR
I
RM 2RM 1EM RELAY NORMALRELAY SPEAKER SELECT EXTOUT EXTINEMG/PANEL TIMER SW POWER SW
EM SWITCH
DC IN
DC OUT
ES-9116
SPEAKER
SPEAKER
PD-9359 DC OUT 24V
PS-9116I
PRE AMP OUT
- NORMAL

17
SC-9216R
SPEAKER LINE CHECKER
Applications-2
Applications-2
TO SC-9116R
CHECKING CHANNEL
DC 24V INPUT, 11W
EXT. IN
CHECK OUT
12
FAULT
OUT
16~9 8~1
www.inter-m.com
4321 5678
ON
43215678
ON
CHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
CH 1CH 2CH 3CH 4CH 5CH 6CH 7CH 8
CHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
CH 9CH 10CH 11CH 12CH 13CH 14CH 15CH 16
TO
SPEAKER
FROM
AMP
~AC INPUT : 230V 50Hz, 11W
FUSE : T250mAL / 250V
SN
OC03OC03
0210
MADE IN KOREA
MODEL NO. SC-9216R
SPEAKER LINE
CHECKER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
4321 5678
ON
43215678
ON
CHECKING CHANNEL
16~9
CHCHCHCHCHCHCHCHCHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
8~1
TO SC-9216R
CH 1
CH 2CH 3CH 4CH 5CH 6CH 7CH 8
CHCHCHCHCHCHCHCH
CH 9CH 10CH 11CH 12CH 13CH 14CH 15CH 16 SN
www.inter-m.com
OC03OC03
0210
TO
SPEAKER
FROM
AMP
DC OUT
DC IN
NORMAL RELAYCH 1CH 2CH 3CH 4CH 5CH 6CH 7CH 8AMP INCH 9CH 10CH 11CH 12CH 13CH 14CH 15CH 16
EM RELAYSPEAKER OUT(1-8) SPE AKER OUT (9-16)
(HOT)
(COM)
CH-16 CH-15 CH-14 CH-13 CH-8 CH-7 CH-6 CH-5
RELAY GROUP
SPEAK ER
IN(CH1~CH8)
SPEAK ER
IN(CH9~CH16)
CH-12 CH-11 CH-10CH-9 CH-4 C H-3 CH-2 CH -1
S/N
CH-32 CH-31 CH-30 CH-29 CH-24 CH-23 CH-22 CH-21
RELAY ROUP
SPEAK ER
IN(CH17~CH24)
SPEAK ER
IN(CH25~CH32)
CH-28 CH-27CH-26CH-25 CH-20 CH-19 CH-18CH-17
EM COM HO T EM CO M HOT EM COM HO T EM CO M HOT EM COM HO T EM CO M HOT EM COM HO T EM CO M HOT
PA-9324
(PA-9312)
SC-9116R
SC-9216R
RG-9116
PX-9116
PS-9116I
TB-9232
(TB-9116)
PD-9359 A.C OUTLET (SWED OR UNSWED)
DC IN
SPEAKER SELECTOR
DC OUT
MADE IN KOREA
MODELNO.PS-9116
INDI RECT SPEAKE R
SELECTOR
I
RM 2RM 1EM RELAY NORMALRELAY SPEAKER SELECT EXTOUT EXTINEMG/PANEL TIMER SW POWER SW
EM SWITCH
DC IN
DC OUT
ES-9116
SPEAKER
SPEAKER
PD-9359 DC OUT 24V
PS-9116I
PRE AMP OUT
- EM

18 SC-9216R
SPEAKER LINE CHECKER
Applications-3
Applications-3
TO SC-9116R
CHECKING CHANNEL
DC 24V INPUT, 11W
EXT. IN
CHECK OUT
12
FAULT
OUT
16~9 8~1
www.inter-m.com
4321 5678
ON
43215678
ON
CHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
CH 1CH 2CH 3CH 4CH 5CH 6CH 7CH 8
CHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
CH 9CH 10CH 11CH 12CH 13CH 14CH 15CH 16
TO
SPEAKER
FROM
AMP
~AC INPUT : 230V 50Hz, 11W
FUSE : T250mAL / 250V
SN
OC03OC03
0210
MADE IN KOREA
MODEL NO. SC-9216R
SPEAKER LINE
CHECKER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CH 8 CH 7 CH 6 CH 5 CH 4 CH 3 CH 2 CH 1
-
+
DC INPUT
24V CH 16 CH 15 CH 14 CH 13 CH 12 CH 11 CH 10 CH 9
AMP IN 1
AMP IN 2
ALL
GROUP 1
GROUP 2
TIMER REMOTE
(+)
(-)
(+)
(-)
SN
CH 8 CH 7 CH 6 CH 5 CH 4 CH 3 CH2 CH 1
-
+
DC INPUT
24V CH 16 CH 15 CH 14 CH 13 CH 12 CH 11 CH 10 CH 9
AMP IN 1
AMP IN 2
ALL
GROUP 1
GROUP 2
TIMER REMOTE
(+)
(-)
(+)
(-)
SN
4321 5678
ON
43215678
ON
CHECKING CHANNEL
16~9
CHCHCHCHCHCHCHCHCHCHCHCHCHCHCHCH
CHCHCHCHCHCHCHCH
8~1
TO SC-9216R
CH 1
CH 2CH 3CH 4CH 5CH 6CH 7CH 8
CHCHCHCHCHCHCHCH
CH 9CH 10CH 11CH 12CH 13CH 14CH 15CH 16 SN
www.inter-m.com
OC03OC03
0210
TO
SPEAKER
FROM
AMP
REMOTE
SW
EMERGENCY
AC FUSE
2A /250V
DC FUSE
7A /250V
BATTE RY
INPUT
(+ )
(
)
AC IN
GND
(+ )
( )
UNSWITCHED
DC OUTPUT 24V
CH
+
-
DC OUT 24V
SWITCHED
5A MAX
BATTERY OUT
UNSWE D (700W )
SWED 1 (2000W)
SWED 2 (2000W)
SWED 3 (2000W)
SHOCKHAZARD
DO
NOTOP
EN. NOUSER S E
RVICEABLE
PART
SINSIDE.DONOTEX
PO
SE
UNITTORAINOR
MOIS
TURE
WARNING;
RISQ
UE
DECHOCELEC
TR
IQ
-
UE
NEPASOUVRIR
.
AVIS
;
CAUTIO
N;
RE PLACE
WITHTHE
SAME
TYPE
FUSE
ASINDICATED.U TI-
LISER UNFUSIBLEDERE
CHANGE
DE
ME
ME TYPE.
MODELNO;PB-92O7A
BATTERYCHARG
ER
MADEIN
KOREA
!
ACINPUT:220V,60Hz1 39VA
~
FUSE: 1A/250V

S/N
BATTERYIN
PA-9324
(PA-9312)
SC-9116R
SC-9216R
PS-9116
PS-9116
PD-9359
PB-9207A
SPEAKER
SPEAKER
PRE AMP OUT
- PS-9116