Foreign Exchange Office Fxo Module 88.5 x 132 mm Loop current range 13-110mA

4FXO (Foreign Exchange Office) Telephony Trunk Interface Module

The Analog Trunk FXO is an interface that connects to a trunk line, like the one from your service provider. It receives ringing voltage and battery from FXS devices. FXO interfaces are used to connect your PBX to the PSTN. One FXO channel is required for each line you receive from your telco.

The Analog Trunk FXO provides connectivity to analog central office loop start trunk line analog interfaces. And it can be combined with BRI, PRI, and GSM modules.

Typically, a phone is connected to a loop start line from the Telco and is, by default, in an on-hook state. When the phone goes off-hook, the phone completes the line circuit, and current flows through the line. The Telco provides an audible dial tone to the phone and accepts dual-tone multi-frequency (DTMF) digits from the caller.

The Central Office Interface Circuit (COIC) is the heart of the loop start Analog interface, and takes the place of a telephone when connecting to the Telco.

The loop starts Analog Interface provides the following features:

• Detects ringing when on-hook
• Detects loop current when off-hook
• Detects when tip/ring voltage crosses a set voltage when on-hook or off-hook (called DC triggering)
• Can accommodate private branch exchange (PBX) with –48 V battery voltage
• Loop current range: 13-110mA 
• The voltage detection threshold is software-selectable

QA

Q: Can ZYCOO's software be customized?
A: Yes, but there is a corresponding extra charge.

Q: Does ZYCOO support OEM/ODM?
A: Yes, ZYCOO also offers various types of embedded hardware boards for ODM and OEM customers.

Q: How do I purchase? Where can I get a quote?
A: Please contact the ZYCOO sale department at zycoo@zycoo.com for quotes or additional information.

Q: What is the geographic availability For ZYCOO products?
A: Zycoo is globally available. Contact us today to get more information.

Q: For additional support or answers to questions not covered in this FAQ, who should I contact?
A: Please contact us at zycoo@zycoo.com
 

WHY CHOOSE US

• ZYCOO, is the leading developer and manufacturer of IP telephony devices and related systems, devoting itself over the past years to R&D powerful and scalable voice over IP (VoIP) solutions that mainly serve the SME market.

• With the deployment of distribution channels and branch offices in Czech Republic and UAE, ZYCOO products and solutions have been deployed in more than 100 countries and trusted by over 100,000 satisfied customers. Customers can enjoy direct sales, tech-support, training, and after-sale service while using ZYCOO products and solutions.

• Besides branded product, ZYCOO also offers various types of embedded hardware boards for ODM and OEM, as well as software modification or white-label. ZYCOO always keeps pace with the innovative VOIP technology and provides cost-effective products and services to customers.