Comtrol RM-4 - Manual

Hardware Installation and Specifications RocketModem IV: 2000468 Rev. A - 1
Hardware Installation and
Specifications
The RocketModem IV
family is a Universal
PCI V.92 Data/Fax/Voice
multi-modem board,
which is Hayes
®
compatible and supports
installation in 3.3V and
5V bus systems.
The RocketModem IV is
available with four or
eight RJ11 modem ports
that can operate at
speeds up to 56 Kbps
and uses on-board user
upgradeable firmware.
RocketModem IV
features include:
• Ring Indicator (RI) status is included on all modem ports
• Individual software controlled modem reset capability
• Speaker
All V.92 modems are analog line devices. The following figure shows when you can
and cannot achieve 56 Kbps.
• V.92 modems can receive data at rates up to 56 Kbps, provided the data is
being transmitted by a digital modem on a digital (e.g., T1 or ISDN) line.
• V.92 modems can send data over analog (twisted pair) phone lines at a
maximum rate of 33.6 Kbps—even if communicating with other V.92 modems.
• The actual data rate achieved depends on the age and condition of the analog
phone lines, and may be lower than 33.6 Kbps.
Also available as a
4-port version.
Digital
Server
V.90 or V.92
Server
V.90 or V.92
User
Telco
Office
Telco
Office
Analog
Telco
Office
Digital Telephone Network
Lines
Digital
Line
56K
33.6K 33.6K
33.6K
Data Data
Rate Rate