LONG LOOP ADAPTERS
BOOST Loop Current and Ring Voltage
Our Loop Current Booster and Ring Voltage Booster II™ / 25 Line Ring Voltage Booster™ will let you extend the distance that an analog station port (OPX) or telephone line will work.
You only need to use the Booster that will help your problem, either trouble ringing or low talk battery / loop current. It's unlikely you'll need both, unless the pair is very long or the analog station port is particularly weak.
Because you only need to purchase the Booster that fixes the particular problem on the line, you'll save money.
The combination of both the Loop Current Booster and Ring Voltage Booster™ is functionally equivalent to the old Proctor Long Loop Adapter (46222, or 46224).
While the Proctor Long Loop Adapter didn't pass Caller ID, CPC, or FSK, Neon or LED Message Waiting signals, all of our Boosters will pass those signals without a problem.
These Boosters won't interfere with Distinctive Ringing, Call Waiting, Call Transfer or 3-Way Calling features.
The Ring Voltage Booster II™ increases the ring voltage to 90VAC RMS at 20 cycles, with a 7.5 REN output, and a true SINE WAVE output which should be recognized by even the most finicky telephone equipment.
It's very difficult and expensive to amplify a 2 wire phone line if the volume is low. Our Boosters won't increase how loud the line is. More details on Circuit Loss are in our Loop Current and Circuit Loss Tech Bulletin.
Measuring ring voltage isn't easy! No two makes and models of meters will read the same on the same line (they could be as much as 10 volts off), and some modern digital meters just won't read AC voltage on a phone line, which always has DC talk battery on it too. You can see information on measuring AC ring voltage in our in our Ring Voltage Tech Bulletin.
Ring Voltage Booster II™Increases the Ring Voltage to
90VAC RMS at 20 cyclesIncreases Ringing Current to 7.5 REN
True SINE WAVE should make
anything Ring!
The Ring Voltage Booster II™ provides 7.5 REN of 90VAC RMS Ringing to any telephone equipment wired in-series with the Booster. That's enough for more than 7 of the old style 2500 sets with bell ringers. Each of those phones uses 1 REN.
The Ring Voltage Booster II™ will boost ringing from as low as 30VAC RMS. It regenerates the ringing of the telephone line or station port, matching the ring pattern very closely. It does not change the talk battery voltage or loop current, and does not provide any audio gain. One Ring Voltage Booster II™ is required per line.
Boosts Ringing On:
- Telephone Lines
- Analog Station Ports
- Analog ISDN Ports
- T1 Channel Bank Ports
- VoIP Adapter Analog Ports
- Any Device that provides a Port for an Analog Telephone
A lot of modern telecom devices do a poor job of emulating
a real phone line, and have pretty bad ringing!The telephone company normally provides 5 REN of ringing on a telephone line. Adding a Ring Voltage Booster™ will allow you to put over 11 REN worth of phones on a line. Plug around 4 REN directly into the line from the phone company, and plug 7 REN into the Ring Voltage Booster II™ (which would be bridged directly to the phone line).
You need to know how many REN you're putting on a phone line or adapter. The REN value is marked on the bottom of each modern phone. Most are now well under 1 REN, although some are more than 1 REN.
The Ring Voltage Booster II™ will boost the ringing from phone system analog station ports, which often have low ring voltage, less than 1 REN of ringing current, and a Square Wave for ringing (instead of a true SINE wave as provided by the real phone company).
The ring voltage standard is lower in Europe (around 60VAC RMS), so if the phone system or device providing dial tone and ring voltage was designed in Europe, the Ring Voltage Booster II™ could be the only way to get your CPE equipment to ring!
When used on an OPX (Off-Premise Extension), the Ring Voltage Booster II™ is normally placed at the far-end of the circuit (where the CPE equipment is), to regenerate the ring. You may need a Ring Voltage Booster II™ on each end of an OPX, particularly if the ringing is weak coming out of the phone system's station port and the OPX runs a long ways. You may need the Ring Voltage Booster II™ on the near end (at the PBX) if it's an OPX, and the phone company's equipment (like a repeater) doesn't recognize the ringing from the phone system's analog station port.
Has Modular Jacks for easy connection to the telephone line or station port, and the telephones.
There are no switches on the Ring Voltage Booster II™, but there is an LED will that will indicate when the ring voltage is being replaced (boosted).
The CPE equipment (telephones) on LINE-OUT will still work without 110VAC power applied to the Ring Voltage Booster II™, but you will have no boost of the ring voltage or current. It will simply pass the line through.
Comes in a plastic case, and includes a 110VAC to 12V 1000ma Regulated Power Cube.
220VAC International Power Cube is available.
Part Number: KIT8R Price: $124.95 ||| 3+ Price: $112.00
25 Line Ring Voltage Booster™
Populate in 5 Line Increments!
Increases Ring Voltage to 90VAC RMS at 20 cycles
Increases Ringing Current to 7.5 REN
True SINE WAVE should make anything Ring!
The 25 Line Ring Voltage Booster™ is a 19” rack mount chassis with 25 pair AMP connectors for input and output. The electronics are exactly the same as our Ring Voltage Booster II™ (above). If you want to make sure this will solve your problem, buy a single line Ring Voltage Booster II™ to see if it will help, before ordering a 25 Line unit.It’s placed in-series with up to 25 analog station ports or phone lines and the phone equipment that needs the increased ring voltage or current. It regenerates the ringing of the telephone line or station port, matching the ring pattern very closely.
The 25 Line Ring Voltage Booster™ will boost the ringing on a phone line or station port that’s as low as 30VAC RMS. It regenerates the ringing of the telephone line or station port, matching the ring pattern very closely. It does not change the talk battery voltage or DC loop current, and does not provide any audio gain. It just boosts the Ring Voltage and Current. Nothing else.
One Ring Voltage Booster™ Module is required per line, and one Ring Generator Module is required for every five lines (it’s not necessary to populate all 25 lines if they’re not needed). It's populated in 5 line increments.
Ring Voltage Booster™ Module Ring Generator Module
5 Lines Populated
One plug-in Ring Generator Module serves each five plug-in Ring Voltage Booster™ Modules (one Booster Module is needed per line).
The chassis can be populated with up to 5 Ring Generator Modules (RG1 through 5), and 25 Ring Voltage Booster™ Modules. One 4A 12VDC Regulated Power Supply plugs into a jack on the rear panel.Each Ring Generator Module puts out 7.5 REN of 90V Sine Wave ringing current, which is used by the five associated Ring Voltage Booster™ Module ports.
Traffic Considerations:
If only one of the five ports associated with a Ring Generator Module is ringing, it will get the full 7.5 REN output of that Ring Generator. If two ports are ringing at the same time, each port will split the 7.5 available REN. Likewise, if three, four or all five ports are ringing simultaneously, they will all split the available 7.5 REN.
Normally you’ll only have one 1 REN or less attached to each port in a PBX environment. If all five ports ring at the same time, there will be plenty of current to ring all five.
If you have 5 REN worth of phones/ringers on each port, it will take 25 REN to ring them all simultaneously, and none will ring because that’s more current than the Ring Generator Module can provide.
The chances of all five ports ringing at the same time are slight, but it’s possible. Most phone systems stagger the ringing on analog ports so they don’t need a huge ring generator (which is fairly annoying in an office environment where several phones are programmed to ring on an incoming call).
If you have a lot of REN on each port, and you can assign stations that ring at different times to the ports associated with a single Ring Generator Module, you’ll have 7.5 REN available to each port. If you only have a few ports with a lot of phones/ringers, split them up between the five Ring Generator Modules in the 25 Line Ring Voltage Booster™
Feature Compatiblity:
The 25 Line Ring Voltage Booster™ works with CPC (Calling Party Control, or Open Loop Disconnect), Caller ID, Message Waiting (may have a problem with some Neon and LED type message waiting), Distinctive Ringing, Call Waiting, Call Transfer and 3-Way Calling. It regenerates the ringing of the telephone line or station port, matching the ring pattern very closely.
The 25 Line Ring Voltage Booster™ Boosts Ringing On:
• Telephone Lines • Analog Station Ports • Analog ISDN Ports • T1 Channel Bank Ports
• VoIP Adapter Analog and Gateway Ports • Any Device that provides a Port for an Analog Telephone
Note that the ring voltage standard is lower in Europe (around 60VAC RMS), so if the phone system or device providing dial tone and ring voltage was designed in Europe, the Ring Voltage Booster™ could be the only way to get your CPE equipment to ring!
There are no switches on the 25 Line Ring Voltage Booster™. There are LEDs to indicate power to the 25 Line Ring Voltage Booster™, when a Ring Generator Module is supplying power, when a Ring Voltage Booster™ Module is providing power (replacing the ringing for that porton), and when there is an overload on a Ring Generator Module.
The CPE equipment (telephones) on the output will still work without power applied to the 25 Line Ring Voltage Booster™, but you will have no boost of the ring voltage or current. It will simply pass the line through.
Part Number: DSI9O Price: $899.95
25 LINE RING VOLTAGE BOOSTER™ - RING GENERATOR MODULE
25 Line Ring Voltage Booster™ Ring Voltage Generator
Supports ringing for up to 5 Ring Voltage Booster™ Modules.
5 needed per 25 Line Ring Voltage Booster™.Part Number: DSI9P Price: $54.95
25 LINE RING VOLTAGE BOOSTER™ - 1 BOOSTER MODULE
25 Line Ring Voltage Booster™ Module
5 needed per Ring Generator Module, up to a maximum or 25 per 25 Line Ring Voltage Booster™Part Number: DSI9Q Price: $62.95
12VDC 4A (4000ma) REGULATED 110VAC POWER SUPPLY
12VDC 4A Regulated Power Supply
with US Style 110VAC Cord
Comes with 110VAC US Style Cord.
Power Supply will work on 220VAC
if you use a locally sourced cord for the AC side (see picture).Part Number: DSI9N Price: $29.95
Loop Current Booster™Increases the Loop Current to a Regulated 27ma
Increases the On-Hook Talk Battery by 24VDC
The Loop Current Booster™ simply adds 24VDC to the on-hook talk battery. If the on-hook (hung-up) talk battery on a line is 24V, the Loop Current Booster™ will raise the on-hook voltage to 48VDC.
The off-hook DC voltage would be the same as any phone line with 27ma of loop current.
The Loop Current Booster™ will boost loop current from a CO line or station port providing as low as 15ma of loop current, at 20 to 48VDC.
The Loop Current Booster™ does not change the ringing voltage or current, and does not provide any audio gain. One Loop Current Booster™ is required per line.
Some phone companies no longer offer any conditioning for an OPX. They won’t install repeaters or condition the line for you. The Loop Current Booster™ boosts the talk battery and loop current, so you can get many non-conditioned (or improperly conditioned) OPXs to work.
When used on an OPX (Off-Premise Extension), the Loop Current Booster™ is normally placed at the near-end of the circuit (where the dial tone originates). Modern phone system station ports typically have less than 48VDC talk battery, so placing the Loop Current Booster™ in-series between the station port and the telco OPX demarc will make the loop current and talk battery look more like a standard phone line to the phone company.
If there’s not enough loop current on a phone line or at the far-end of an OPX (below 23ma), phones will sometimes not work properly (they might have dialing and/or talking problems). When the Loop Current Booster™ is used in-series with the pair entering a premise, it increases the loop current and talk battery voltage. You may need a Loop Current Booster™ on each end of an OPX.
A Line In-Use LED indicator is located on the face of the Booster.
The CPE equipment (telephones) connected in-series with the Loop Current Booster™ will work without 110VAC power, but you will have no boost of the talk battery or loop current. It will simply pass the line through.
The Loop Current Booster™ has modular connections for both the telephone line or station port, and the telephone equipment.
Includes 110VAC to 24VDC 100ma unregulated power cube. Do not substitute a different power transformer!
220VAC International Power Cube is available.
Part Number: KIT8L Price: $99.95 ||| 3+ Price: $89.95
Need to know what kind of Central Office the Phone Company is using?
How about the address of the Central Office?
Click Here
to do a CO Lookup!Use our CO Lookup to find out which Phone Company owns the CO,
where the CO is, and how far it is from your customer's premise
using our Map It! feature.You'll also find all of the exchanges in that Central Office (the actual CO switch could have many exchanges, allowing it to go over 10,000 phone numbers), and find all of the other COs (colocated) at that address (there could be several).
Keep in mind that with the advent of Portability, there is no way to tell whether a particular phone number has been ported to another Phone Company without asking your customer (if they know!). You could try dialing 0 for the Operator, but it seems like most are now in India, and don't know who they're answering the line for (they just say they're the Operator).
If you use the local Phone Company's 1KC Tone on a phone number that's been ported to another Phone Company's switch, the readings probably won't be accurate. You'll need the 1KC Tone phone number in the CLEC's switch.
We need your local Test Numbers!
Our databse will now list Test Numbers for each switch (1KC Tone and Silent Termination), when we have that information. If you know the test numbers for some of the COs in your area, you can look up that CO, and then enter the information into a form. We'll test them (we don't want to keep calling someone's Grandmother!), and put them in the list within a day or two.
Since the database lists each CO individually, we need the information on specific COs. Although we can try to put general notes in the listing that will apply to an entire city, state or area code, the most useful information is specific test numbers for a particular CO. At this point, we don't have a lot of test numbers, but we're hoping that will change quickly!
At most COs, the 1KC Tone is always the exchange code plus a particular last four digits. In the Chicago area, 9996 and 9940 are popular for the 1KC tone, and 9939 or 9995 for Silent Termination. 9997 or some other number is used to open a circuit automatically for a few minutes from the CO for testing in the field (to remove talk battery so you can test with a Kick Meter or Sidekick).
If you know the common four digit station numbers that a particular Phone Company uses, you may be able to figure out the test number you need by trying those four digits with all the exchanges shown for that CO in CO Lookup (like XXX-9996). Since there are usually several exchanges working out of larger COs, the test numbers will only be on one of the exchanges.
As an example, if you do a CO Lookup on the 630-295 exchange, you'll find that there are quite a few exchanges working out of that CO (they all have the same CLLI code). Neither 630-295-9996 or 630-295-9940 give you a 1KC Tone, but if you try each of the exchange codes in that CO, when you get to 630-980 you'll find that 630-980-9940 gives your a 1KC Tone.
Note that on the list of exchanges working out of the same CO, there can be more than one area code in a Central Office. In the case of the CO that has the 630-295 exchange, there are several 847 area code exchanges. This is usually the result of area code splits, where the line between the two area codes went right through the area where a single Central Office served several cities.
When you need to do a CO Lookup, you'll find it right at the top of our main page at www.sandman.com
Network Meter™
Accurate DVOM
(Digital Volt Ohm Meter)and
CAT5 Cable Tester
with Remote to test for Continuity and Splits
Includes:
- Digital Meter with 9V Battery
- Holster with Police Style Belt Clip
- Test Leads with Butt-set Style Bed-of-Nails Clips
- Regular Meter Test Probes
- Remote for the Cable Tester
- Two 1 Foot Patch Cords
- Zipper Case for Accessories
An Unbelievably Good Meter for a Phone Man, at a Very Reasonable Price!
We bought and tested lots of meters to find one that was accurate for the phone man who has to measure:
- On and Off Hook DC Voltage
- DC Loop Current
- Induced AC Voltage on a Phone Line
- AC Ring Voltage
It's amazing how many meters, even expensive ones, won't measure AC on a phone line. You know you can't use a meter for telephone work if the display just hunts from 50 to 100 to 10 to 200 to 30, etc., constantly. Most Flukes work OK.
Network Meter™ DVOM Features:
- AC and DC Volts
- AC and DC Current (DC mA for Loop Current)
- Ohms
- Continuity with Beeper
- Hold Button to Freeze the Display
- Large Numbers on the LCD Display
- Bright White Backlight for the Display (Switchable On/Off)
- CAT5 4 Pair Cable Tester with Remote (Shows Continuity and Split Pairs)
- Flip Out Desk Stand, with Helpful Connection Tips under the Stand
- Overvoltage Protection prevents Meter Damage
- Comes with Regular 9V Heavy Duty Battery - Lasts an Incredibly long time!
- NOTE: There is an RJ-11 Test on the Selector Switch that's not Implemented
The Network Meter™ is really easy to use!
Phone line and phone system problems are getting harder, and a meter is as important as ever for a phone man who needs to get problems fixed as quickly and efficiently as possible... before you replace the KSU!
The Network Meter™ is at least as good at reading AC ring voltage as the $800 to $1,000 Triplett Model 5 or Sidekick T&N Meters, and it's accurate on all of the other ranges too - including DC ma (for loop current).
I put 50VDC from a phone line into the Cable Tester and Remote RJ-45 jacks, as well as the meter's ohms range, and the meter still worked (no smoke!). Not all meters or cable testers can survive an accidental connection to a phone line - which is a real possibility when we're out in the field. With PoE (Power over Ethernet), a lot of CAT5 jacks in offices are going to have 48VDC on one of the pairs that can instantly destroy a cable tester without overvoltage protection.
See the Ring Voltage Tech Bulletin for more information on ringing problems, and reading AC voltages on phone lines.
Part Number: TOH3A Price: $89.95 ||| 3+ Price: $79.95
REPLACEMENT METER LEADS
Standard Replacement Banana Plug Meter Leads
Part Number: MSC3B Price: $6.95
ECONOMY Network Meter™A GREAT DVOM (Meter) that reads AC on a phone line
correctly, and also tests the continuity of CAT5 cables...
at an Unbelievable Price!Accurate DVOM (Digital Volt Ohm Meter) and
CAT5 Cable Tester with Remote
to test for Continuity and SplitsIncludes:
- Digital Meter with 9V Battery
- Regular Meter Test Probes
- Remote for the Cable Tester
An Unbelievably Good Meter for a Phone Man, at a Very Reasonable Price!
We bought and tested lots of meters to find one that was accurate for the phone man who has to measure:
- On and Off Hook DC Voltage
- DC Loop Current
- Induced AC Voltage on a Phone Line
- AC Ring Voltage
It's amazing how many meters, even expensive ones, won't measure AC on a phone line. You know you can't use a meter for telephone work if the display just hunts from 50 to 100 to 10 to 200 to 30, etc., constantly. Most Flukes work OK.
ECONOMY Network Meter™ DVOM Features:
- AC and DC Volts
- AC and DC Current (DC mA for Loop Current)
- Ohms
- Continuity with Beeper
- Hold Button to Freeze the Display
- Large Numbers on the LCD Display
- Bright White Backlight for the Display (Switchable On/Off)
- CAT5 4 Pair Cable Tester with Remote (Shows Continuity and Split Pairs)
- Flip Out Desk Stand, with Helpful Connection Tips under the Stand
- Overvoltage Protection prevents Meter Damage
- Comes with Regular 9V Heavy Duty Battery - Lasts an Incredibly long time!
- NOTE: There is an RJ-11 Test on the Selector Switch that's not Implemented
The ECONOMY Network Meter™ is really easy to use!
Phone line and phone system problems are getting harder, and a meter is as important as ever for a phone man who needs to get problems fixed as quickly and efficiently as possible... before you replace the KSU!
The ECONOMY Network Meter™ is at least as good at reading AC ring voltage as the $800 to $1,000 Triplett Model 5 or Sidekick T&N Meters, and it's accurate on all of the other ranges too - including DC ma (for loop current).
I put 50VDC from a phone line into the Cable Tester and Remote RJ-45 jacks, as well as the meter's ohms range, and the meter still worked (no smoke!). Not all meters or cable testers can survive an accidental connection to a phone line - which is a real possibility when we're out in the field. With PoE (Power over Ethernet), a lot of CAT5 jacks in offices are going to have 48VDC on one of the pairs that can instantly destroy a cable tester without overvoltage protection.
See the Ring Voltage Tech Bulletin for more information on ringing problems, and reading AC voltages on phone lines.
Part Number: TOH3B Price: $44.95 ||| 3+ Price: $42.95 ||| 10+ Price: $39.90
630-980-7710
Copyright © 2009 Mike Sandman Enterprises, Inc.
