Long Loop Adapter
(Off Premise Extensions)
2 1 S T C E N T U RY
July 15, 2013
Extend Analog PABX Station Loop Length
to 30,000 Feet
• Direct Replacement for Proctor model 46222 Long Loop Adapter
The Viking model LLA-1 provides long line and
off premise extension (OPX) capabilities for
PABX and KSU analog stations, ISDN terminal
adapters, channel banks, etc. The long loop
adapter converts any low talk battery voltage or
weak ringing analog line into a standard 48V
line with powerful 20HZ sine wave ring signal.
The LLA-1 is compatible with pulse dialing, touch tone dialing, hook switch flash features, CPC signaling, and Caller ID features. A ground screw terminal allows for
improved surge protection and as a earth ground reference for the regenerated line.
The long loop adapter is easy to install, requires no programming, and can be used as
a direct replacement for the discontinued Proctor model 46222 long loop adapter.
• Convert an analog KSU/PABX station to a
standard voltage OPX
• Provides 48 VDC talk battery
• Provides 20 HZ, 10 REN sine wave ringing
• Passes Caller ID information
• Passes hook switch flash
• DTMF and pulse dialing compatible
• Passes CPC signals
• Electrically isolates PABX station from
extended loop
• Provides additional lightning and surge
• Selectable ring protocols
h t t p : / / w w w. v i k i n g e l e c t r o n i c s . c o m
• Turn a standard station into an on-premise or
off-premise extension (OPX)
• Give any low voltage line or station from an ISDN
terminal, KSU, PABX, etc. the talk battery and
ringing power of a standard C.O. line
• Convert a polarity reversal DC ring signaling line
to a typical 20Hz AC ringing line
Power: 120V AC/13.8V AC 1.25A, UL listed adapter provided
Dimensions: 133mm x 89mm x 44mm (5.25” x 3.5” x 1.75”)
Shipping Weight: 1.36 kg (3 lbs)
Environmental: 0°C to 32°C (32°F to 90°F) with 5% to 95% noncondensing humidity
Talk Battery: 48 VDC (minimum)
Ring Generation: Sine wave 105 VAC @ 20 HZ (nominal),
capable of ringing 10 REN load
Dialing: Pulse (10 pps) and DTMF compatible
Hook Switch Flash Timing: From 200ms to 500ms increased
to 500ms
CPC Timing: Duplicates original CPC timing
Electrical Isolation: 1500 VDC
Facility Interface Code: OL13C
Audio Loss Through Unit: 1.3 dB
Connections: (6) screw terminals
Our Technical Support Department is available for assistance Monday 8am - 4pm and Tuesday through Friday 8am - 5pm central time. So that we can give you better service, before you call please:
1. Know the model number, the serial number and what software version you have (see serial label).
2. Have your Technical Practice in front of you.
3. It is best if you are on site.
The following procedure is for equipment that needs repair:
1. Customer must contact Viking's Technical Support Department at 715-386-8666 to obtain a Return Authorization (RA)
number. The customer MUST have a complete description of the problem, with all pertinent information regarding the
defect, such as options set, conditions, symptoms, methods to duplicate problem, frequency of failure, etc.
2. Packing: Return equipment in original box or in proper packing so that damage will not occur while in transit. Static
sensitive equipment such as a circuit board should be in an anti-static bag, sandwiched between foam and individually boxed. All equipment should be wrapped to avoid packing material lodging in or sticking to the equipment. Include
ALL parts of the equipment. C.O.D. or freight collect shipments cannot be accepted. Ship cartons prepaid to:
Viking Electronics, 1531 Industrial Street, Hudson, WI 54016
3. Return shipping address: Be sure to include your return shipping address inside the box. We cannot ship to a PO Box.
4. RA number on carton: In large printing, write the R.A. number on the outside of each carton being returned.
The following procedure is for equipment that has failed out-of-box (within 10 days of purchase):
1. Customer must contact Viking’s Technical Support at 715-386-8666 to determine possible causes for the problem. The
customer MUST be able to step through recommended tests for diagnosis.
2. If the Technical Support Product Specialist determines that the equipment is defective based on the customer's input
and troubleshooting, a Return Authorization (R.A.) number will be issued. This number is valid for fourteen (14)
calendar days from the date of issue.
3. After obtaining the R.A. number, return the approved equipment to your distributor, referencing the R.A. number. Your
distributor will then replace the product over the counter at no charge. The distributor will then return the product to
Viking using the same R.A. number.
4. The distributor will NOT exchange this product without first obtaining the R.A. number from you. If you haven't
followed the steps listed in 1, 2 and 3, be aware that you will have to pay a restocking charge.
Viking warrants its products to be free from defects in the workmanship or materials, under normal use and service, for a period of one year from the date of purchase from any authorized Viking distributor or 18 months from the date manufactured, which ever is greater. If at any time during the warranty period, the product is deemed defective or malfunctions, return the product to Viking Electronics, Inc., 1531 Industrial Street, Hudson, WI., 54016. Customer must contact Viking's
Technical Support Department at 715-386-8666 to obtain a Return Authorization (R.A.) number.
This warranty does not cover any damage to the product due to lightning, over voltage, under voltage, accident, misuse, abuse, negligence or any damage caused by use of the product by the purchaser or others.
Vikings sole responsibility shall be to repair or replace (at Viking's option) the material within the terms stated above. VIKING SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND INCLUDING INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING DIRECTLY OR INDIRECTLY FROM ANY BREACH OF ANY WARRANTY EXPRESSED OR IMPLIED, OR FOR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.
BEYOND THE ONE YEAR DURATION OF THIS WARRANTY. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply to you.
This equipment complies with Part 68 of the FCC rules and the requirements adopted by the ACTA. On the
bottom of this equipment is a label that contains, among other information, a product identifier in the format US:
AAAEQ##TXXXX. If requested, this number must be provided to the telephone company.
This unit is hard wired to the telco service using screw terminals as shown in the installation section.
The FIC for this equipment is OL13C.
The REN is used to determine the number of devices that may be connected to a telephone line. Excessive
REN's on a telephone line may result in the devices not ringing in response to an incoming call. In most but not
all areas, the sum of REN's should not exceed five (5.0). To be certain of the number of devices that may be connected to a line, as determined by the total REN's, contact the local telephone company. For products approved
after July 23, 2002, the REN for this product is part of the product identifier that has the format: US:
AAAEQ##TXXXX. The digits represented by the ## are the REN without a decimal point (e.g., 03 is a REN of
0.3). For earlier products, the REN is separately shown on the label.
If this equipment causes harm to the telephone network, the telephone company will notify you in advance
that temporary discontinuance of service may be required. But if advance notice isn't practical, the telephone
company will notify the customer as soon as possible. Also, you will be advised of your right to file a complaint
with the FCC if you believe it is necessary.
The telephone company may make changes in its facilities, equipment, operations or procedures that could
affect the operation of the equipment. If this happens the telephone company will provide advance notice in order
for you to make necessary modifications to maintain uninterrupted service.
If trouble is experienced with this equipment, for repair or warranty information, please contact Viking
Electronics, 715-386-8666, If the equipment is causing harm to the telephone network, the telephone company may request that you disconnect the equipment until the problem is resolved.
This equipment is not user repairable.
Connection to party line service is subject to state tariffs. Contact the state public utility commission, public
service commission or corporation commission for information.
If your home has specially wired alarm equipment connected to the telephone line, ensure the installation of
this equipment does not disable your alarm equipment. If you have questions about what will disable alarm
equipment, consult your telephone company or qualified installer.
It is recommended that the customer install an AC surge arrester in the AC outlet to which this device is connected. This is to avoid damaging the equipment caused by local lightning strikes and other electrical surges.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part
15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct the interference at his own expense.
Unused Trunk
Input of PABX/KSU
* Earth
Viking Electronics, Inc., Hudson, WI. 54016
Earth Ground to
Additional Units
Long Loop Run
120V AC
13.8V AC
Station, ISDN
Terminal Adapter,
Channel Bank, etc.
* Note: To increase surge protection, and to give the long loop run an earth ground reference, fasten a wire from the screw terminal to Earth Ground (grounding rod, water pipe, etc.).
There are three DIP switches on the LLA-1 printed circuit board to allow for different ringing protocols.
Switch 1
Internal View of the LLA-1
Detects typical 20Hz AC ringing (factory default)
Detects polarity reversal DC ring signaling.
Note: This mode is polarity sensitive. If connected in
reverse polarity, the LLA-1 will ring continuously. See the
diagram at the right for proper polarity.
Switch 2
Switch 3
Ring OFF - Incoming ringing is not passed through the unit.
The outgoing ring signal will “follow” the cadence of the incoming ring signal.
A double ring signal will be “filled in” so the outgoing ring will
look like one longer ring signal (factory default).
The outgoing ring signal will be “forced” to a full 2 seconds, no
matter what the incoming ring signal is. Note: Not recommended if Caller ID is being used.
DIP Switches
(shown in factory
default positions)
When the LLA-1 is sitting in the idle state, it provides -48VDC talk battery out the long loop screw terminals for the OPX
phones (or trunk input).
When the OPX phone goes off hook, the system line is seized, talk path is opened, and system dial tone is passed through
the LLA-1 to the OPX phone. Touch Tone or 10pps Pulse digits can now be dialed. If the system provides a CPC signal, it
will be passed through the LLA-1 to the OPX phone. When the OPX phone goes back on-hook, the LLA-1 will release the
system line.
When ringing is detected from the system, the LLA-1's internal sine wave ring generator produces a 20Hz 105V AC ring
signal to the OPX phone. Re-ring cadence is selectable (see programming). If Caller ID data is received after the first ring,
it will be amplified and passed on to the OPX phone. When the OPX phone answers, the LLA-1 will answer the system line,
and provide talk path through the unit. If the system provides a CPC signal, it will be passed through the LLA-1 to the OPX
phone. When the OPX phone goes back on-hook, the LLA-1 will release the system line.
The front panel LEDs operate as follows:
PWR LED - Lights steady when the unit is powered up, and winks off to show incoming ring signal detection.
RING LED - Lights to show re-ring cadence going out of the long loop to the phone.
IN USE LED - Lights when the phone is off-hook to show the line is in use.
CPC LED - Lights to show a CPC signal is detected and being re-generated out the long loop to the phone.
Note: If both the IN USE and CPC LEDs light, this indicates there is no phone line detected on the LINE IN FROM SYSTEM terminals following an off-hook on the LONG LOOP OUT TO TELEPHONE terminals.
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The RAD-1A answers on the first ring and disconnects on CPC, call time out,
silence time out, busy or by dialing #7. Separate 600 ohm audio and telephone line
outputs are provided, allowing connection to audio amplifiers, digital announcers,
or phone systems. The user does not have to hang up and redial the RAD-1A to
access other features.
For more information on the RAD-1A, see DOD# 410.
Extend Your Phone System’s Features and Forward Calls to Telecommuters
The RAD-AMP extends the usefulness of your phone system to remote
employees, as well as providing call forwarding to remote employees or
As a line extender, the RAD-AMP provides authorized users remote access
to PABX, Centrex or Electronic Key system features. As a call diverter, the
RAD-AMP provides call forwarding from one location to another. After
detecting an inbound call, the RAD-AMP accesses a second phone line,
dials a preprogrammed Touch Tone number, and then bridges the two lines.
As a Telecommuting extender, the RAD-AMP gives remote workers access
to most PABX/KSU features from their home or cell phone.
For more information on the
RAD-AMP, see DOD# 415.
Two Way Phone Line Simulator Ideal for Ringdown Applications and Demos
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and standard single line telephones. The Line Simulator can also provide sales
people with a cost effective, easy to use method of conducting on site demonstrations, eliminating the need to locate phone lines and disrupt the customer’s
phone service.
The DLE-200B Line Simulator provides precise dialtone, DC talk battery and
standard or distinctive ringing. The unit also provides a CPC break on hang up.
For more information on the DLE-200B, see DOD# 605.
Advanced Line Simulator for Communication, High Speed Data, Caller ID and Training
The DLE-300 advanced Line Simulator provides sales people, technicians,
engineers, etc. with a cost effective, easy to use method of conducting onsite demonstrations or diagnostics, eliminating the need to locate phone
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The Line Simulator provides two way communication between standard analog telecom products such as modems, fax machines, Key Systems, PABX’s
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tone, ring back, busy, SIT, reorder tone, and provides CPC on disconnect.
Product Support Line...715.386.8666
For more information on the
DLE-300, see DOD# 607.
Fax Back Line...715.386.4345
Due to the dynamic nature of the product design, the information contained in this document is subject to change without notice. Viking Electronics, and its affiliates and/or subsidiaries
assume no responsibility for errors and omissions contained in this information. Revisions of this document or new editions of it may be issued to incorporate such changes.
DOD# 615
Printed in the U.S.A.
ZF302050 Rev B
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