COMSPHERE^® 3910 SERIES
Private Line Modems

Delivers faster response times with 
Trellis multipoint turnaround as low as 10 milliseconds
Paradyne's unique Data Access Arrangement (DAA) 
architecture offers a single modem for worldwide networks. 
User-friendly front panel provides control of both local and remote modems 

Data Sheet

• The COMSPHERE 3910 software-definable, private line modem is ideal for today's worldwide analog networks -- it offers a single network-managed modem for worldwide, multipoint or point-to-point analog private line and dial applications. That means you get a high level of flexibility, sophistication and speed in one reliable, easy-to-use standalone unit or carrier mount card.
  

• Based on Paradyne's award-winning COMSPHERE 3800 Series architecture, the COMSPHERE 3910 offers software-defined flexibility that lets you change, upgrade or enhance the modem's firmware via the Public Switched Dial Network or Network Management System.
  

• The COMSPHERE 3910 delivers unsurpassed reliability, supporting two-wire dial restoral or restoral of the primary leased-line circuit with a secondary leased line. With its superior flexibility, reliability and speed, the COMSPHERE 3910 is ideal for your worldwide analog network.
  

• The COMSPHERE 3910 is full-featured to meet the requirements for high-volume, high-transaction analog leased-line networks where data integrity and speed are critical. Features include point-to-point or multipoint, synchronous or asynchronous data support, speeds up to V.32bis and V.32terbo* (19.2 Kbps), and a soft architecture.
  

• Designed to meet the stringent requirements of international regulatory organizations, the COMSPHERE 3910 uses a unique, configurable design of the Data Access Arrangement (DAA)--the circuitry which interfaces with the network. In addition, the COMSPHERE 3910 has a self-sensing power supply, plus the Generic Call Progress Algorithm required to meet many international requirements.
  

• The COMSPHERE 3910 can be configured for 2- or 4-wire leased-line networks with backup restoral via 2-wire dial or 2-wire leased line. If line quality begins to deteriorate, the COMSPHERE 3910 modem (if optioned) will downshift to lower speeds, attempting to preserve the link. If it is unable to operate at the minimal selected rate, the modem will automatically initiate dial backup.

COMSPHERE 3000 Series Carrier

• The COMSPHERE 3000 Series Carrier houses a mixture of the COMSPHERE 3911 modems, as well as other Paradyne dial modems and DSU/CSU products. 

• Sixteen cards can be housed in a single carrier, or as many as 96 cards in a 720 cabinet. 
  (This high-density feature is important in data centers, concentration sites, and other 
  locations where space is at a premium. )

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Features

• Multipoint or point-to-point network-managed modems with mixed inbound/outbound rates in multipoint mode
• Designed for growth and migration with software downloading of upgrades and new features over the dial or leased-line network
• Automatic and totally non-interruptive restoral of the primary leased line with high-speed dial or leased-line restoral
• Front panel control of local and remote modems for configuration, control and status
• Fully integrated dial and leased-line network management capability with COMSPHERE 6700 Network Management System (NMS)
• Supports V.32terbo* (19.2 Kbps), Paradyne Trellis Multipoint, and ITU standards for V.32bis, V.33, V.32, V.29, V.27bis, V.22bis, V.22, V.21, V.23, Bell 212A, and Bell 103J

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ARC ELECTRONICS
301-924-7400 EXT 25

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arc@arcelect.com