Viking FaxJack Phone / Fax / Data Switch - FAXJ1000

Viking Electronics FAXJ1000 Four-Port Phone/Fax/Data Line Switch

Overview

The Viking Electronics FAXJ1000 is a four-port analog line-sharing switch built for offices and light-commercial environments that run a fax machine, phone, modem, and other analog devices on a single PSTN line. Rather than paying for additional phone lines, the FAXJ1000 automatically reads incoming call characteristics — CNG tone, distinctive ring pattern, or touch-tone sequences — and routes each call to the correct device without manual intervention. If your facility still depends on a fax-over-POTS workflow or a legacy analog modem for a gate controller or alarm panel, this is the switch that keeps everything coexisting on one line.

Key Features

• Four-Port Line Sharing: Connects up to four analog devices to a single telephone line simultaneously. One line serving four endpoints eliminates recurring monthly line costs while keeping every device reachable.
• CNG Tone Detection at 1100 Hz: The FAXJ1000 listens for the 1100 Hz CNG burst that fax machines transmit on answer, then routes the call directly to the fax port — no ringing other devices, no missed faxes, no manual forwarding.
• Distinctive Ring Routing: Central-office distinctive ring patterns (different cadences on the same line) let you assign a dedicated ring pattern to each device. Callers dial different numbers; the switch sorts them automatically.
• Touch-Tone Call Routing: Incoming callers can press a digit to self-route to a specific port — useful when the line serves a modem or a device that has no distinctive ring assignment.
• 56 Kbps Maximum Data Speed: Full V.90/V.92 modem throughput is preserved, so legacy alarm communicators, credit card terminals, or gate-access dialers operate at their rated speed without throttling.
• 4 REN Ring Output: The switch provides up to 4 REN of ring signal across all connected ports, enough to drive multiple standard analog phones or devices without a separate ring booster.
• 320 ms Minimum CPC Threshold: The FAXJ1000 recognizes calling-party control (loop-open disconnect) signals down to 320 ms, ensuring clean call termination and preventing ghost ringing on downstream devices when a caller hangs up.
• 120V AC Wall-Transformer Power: Powered by an included 13.8V AC 1.25A transformer — no batteries, no UPS dependency. The unit draws from standard wall power, keeping installation straightforward in any office or utility closet.

Integration and Compatibility

The FAXJ1000 works with any standard analog (POTS) telephone line and connects to analog fax machines, telephones, modems, and data devices via RJ-11. It is not designed for VoIP trunks or digital PBX extensions — it requires a real analog loop-start line or an ATA providing a genuine analog interface. Operating temperature is rated 0°C to 32°C (32°F to 90°F), so it is suited for climate-controlled indoor spaces. Humidity tolerance runs 5% to 95% non-condensing. The compact 133 mm × 91 mm × 44 mm footprint fits easily on a shelf or desktop alongside connected equipment.

What's in the Box

• 1× FAXJ-1000 switch unit
• 1× 13.8VAC transformer with plug

Frequently Asked Questions

Q: How does the FAXJ1000 know which device to route a call to?

A: It uses three methods: CNG tone detection (1100 Hz burst from fax machines), central-office distinctive ring patterns, or touch-tone digits pressed by the caller. Each port can be assigned one of these routing methods.

Q: Will the FAXJ1000 work with a VoIP line or digital PBX?

A: The FAXJ1000 requires a standard analog (POTS) loop-start line. If you are using a VoIP service, you will need an ATA that provides a genuine analog FXS port — the FAXJ1000 is not designed for direct connection to SIP trunks or digital PBX extensions.

Q: What is the maximum modem or data speed supported?

A: The FAXJ1000 supports up to 56 Kbps data throughput, preserving full V.90/V.92 modem performance for connected data devices.

Q: How many devices can share the line at once?

A: The FAXJ1000 provides four ports. All four devices share the single incoming line, but only one can be active on a call at a time — the switch routes each incoming call to the appropriate port based on the detection method configured.

Q: What is the warranty on the FAXJ1000?

A: Viking Electronics covers the FAXJ1000 with a two-year limited warranty.

Q: What are the operating environment requirements?

A: The FAXJ1000 is rated for indoor use at 0°C to 32°C (32°F to 90°F) and 5% to 95% non-condensing humidity. It is not rated for outdoor or uncontrolled-temperature installations.

Marty Allison

The spec that defines where the FAXJ1000 earns its place is the 1100 Hz CNG detection — it is not a soft heuristic, it is a hard frequency match to the standard fax CNG burst. In facilities where a missed fax means a missed purchase order or compliance document, that deterministic routing matters more than anything else on the spec sheet.

Technical Highlights:

• CNG Detection (1100 Hz): Hard-coded to the ITU fax CNG standard — when an incoming fax call hits the line, the FAXJ1000 identifies it within the burst window and routes before any other device picks up, eliminating the race condition you get when devices share a line without a switch.
• 320 ms CPC Threshold: Loop-open disconnect as short as 320 ms is recognized, which means the switch clears the port cleanly when the far end drops. Without this, short-duration loop opens (common on some CO equipment) can leave a port locked and unable to receive the next call.
• 56 Kbps Data Throughput: The switch passes full analog modem bandwidth — relevant if the fourth port is driving a legacy alarm dialer or a credit card terminal that has not migrated to IP. No speed cap introduced by the switch itself.

Deployment Considerations:

• Operating temperature tops out at 32°C (90°F) — adequate for an air-conditioned office or server room, but plan cooling if the unit sits in a telecom closet that can run warm in summer.
• The FAXJ1000 requires genuine analog loop-start signaling. If your site has already moved to a hosted PBX or pure SIP, you will need an FXS ATA between the FAXJ1000 and the voice platform — factor that into the bill of materials before ordering.

Best fit for a small professional office, medical practice, or light-industrial site still running one analog POTS line that needs to serve a fax, a modem-based alarm panel, and one or two analog phones without adding a second line.