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InterTalk® FM246 Advance 3-pronged 4-channel 4 units Power-line Intercom for 110 Volts
Upgrade all your intercom to this Advance 3 wire system. No more searching for AC outlets on the same phase of the wiring. this plug & Play Power-line intercom system bridges the two phases of the AC powerlines in the building and make them invisible. You don't have to fumble for the right outlets to be on the same phase of the wire for the system to communicate. Since the system communicates by using the power-line in the building, no Radio Wave is involved, no worry for EMF danger. It is also free from concrete wall and metal construction material obstructions. Power-line Intercom System transmits wherever a wire in the building goes, up to 1500 feet in a straight line measure.
- Simple Power-line plug and play intercom system for all users
- Brand New 3-channel 3 Units Powerline Intercom System packed in White Box. The system communicates on FM frequencies by using the power lines of the builiding.
- Expandable. You can buy additional sets & add on to the system. (see bullet pt # 4 in Knowldege Base for guideline)
- Digital Control function Panel. No intermittence contact problem
- Security- All conversation travel from outlets to outlets within the same power meter of the building. No bugging and no eavesdropping.
- Multi-channel with slide switch for designated station setting for user to pick a good channel for monitoring
- 12 months factory warranty. Just keep your Amazon Order ID
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- System Requirement
- All AC outlets must be 3 pronged with proper grounding
- One Power Meter only
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- Important Buying Guide:
- * If you are new to intercom and your wiring MEET the system requirement, you should start with this model
- * Upgrade you TRADITIONAL 2 pronged system to this Advance Intercom
- * If your existing intercom is 3 pronged, this is the Exact Upgrade.
- * If ANY of your outlets are 2 pronged only, or if ANY of your 3 pronged outlets are not properly ground, you should buy FM523(ASIN #B00419O33Q) or FM132 (ASIN#B003YMB77Q)
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- KNOWLEDGE BASE:
- * The term "wireless" is a branding employed by those BIG retailers from over 20 years ago. The official product name is Power-line Intercom System.
- * Simple power-line communication. NO Radio Wave. Therefore NO transmission nor receiving process.
- * Do not use any 3 pronged to 2 pronged adapter. do not use this ystem on ANY 2 pronged AC outlet. It will defeat the dual phase wiring bridging feature of the system. In a word, any of those adapter will downgrade the 3 pronged system to a 2 pronged system. You will be facing the Dual Phase wiring problem just like a regular 2 pronged system.
- * There are no fix rules on how to utilize the channels. It can be used as all paging, monitoring or unit to unit per designated channel communicating. Combinations can be 2 sets of 3 channel twin set & make it six units, or one twin units 4 channel sets. Some users would believe the number of channels = to the number of units. This is not exactly true.
- * Power-line Intercom systems communicate via the power-line of the house; therefore it has further distance further distance than a Radiowave Frequency intercom, free from building material obstruction like concrete, and it has no EMF danger.
- * Since voice travel via the power-line, all 2 pronged units must be plug into the same phase of the AC supply to communicate.If the system is plugged on to same phase of the wire, they are NOT on the same line, they will NOT communicate
- * Power-line Intercom System uses the AC power line as the medium. It is subject to any interference already existed in the power-line, Just like your AC AM Radio. There is NO defectiveness with the system.
- * Statics & noises interferences) were feed into power-line by bad appliances with characteristics of hums, buzz, sizzle or roar punctuated by pops & crackles. About 8 to 10% of the households are affected by Interference. Power-line intercoms rely on power-lines for communication. Interference affects 1 maybe 2 channels on the whole spectrum of the bandwidth. To meet the challenges, multi-channel intercom was created as a solution for users to pick a clean channel for the monitoring purpose.
- * Dual Phase AC wiring is defined as One 220 volts service drop from the utility company coming in to the building. The 220 volts is divided into two phases of 110 volts each with half the building wired on one phase and half on the other to even out the load. In an optimal scenario, the upper outlet is phase one & the lower outlet is phase two. Dual Phase wiring affects all building in North America.
- * Power meter: In general utilities supply & billing, one household should have only one power-meter. Multiple power meters situation is common in some commercial units, when the tenant rents 2 units & joint them as one. In a residential situation, multiple power meters are possible with duplex. All power-line Intercoms transmit & receive within one power meter. This is a major security feature.
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