Comtrol RM II V.90 - Manual

Product Overview
The RocketModemII multimodem card is Hayes
®
compatible and contains four or six RJ11 modem ports,
depending on the model, that can operate at speeds up
to 56 Kbps.
RocketModemII features for this model include:
• Four or six RJ11 modem ports
• Bootable diagnostic tests on diskette
• Individual software controlled modem reset
capability
• Speaker
Note: See the Software Installation and Configuration
Guide for information about installing software,
the AT command set, and using the reset feature.
Note: If the Comtrol RocketModemII is not among the
modem models listed in your software
applications modem list, you can select
SupraFAXModem 288(336) for fax emulation and
Zoom Telephonics Zoom V.34X for modem
emulation.
Utilizing V.90 Technology
All V.90 modems are analog line devices. The following
figure shows when you can and cannot achieve 56 Kbps.
• V.90 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.90 modems can send data over analog (twisted
pair) phone lines at a maximum rate of 33.6 Kbps—
even if communicating with other V.90 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.
Characteristic RocketModemII Support
Supported standards
V.90, K56Plus, V.34,
V.32turbo, V.32bis, V.32,
V.22bis, V.23, V.21, Bell
212A, Bell 183
Error correction V.42, MNP2-4, MNP10
Data compression V.42bis, MNP5
Fax group Group 3
Fax class Class 1.0 and Class 2
Reset Software controlled
Digital
Server
V.90
Server
V.90
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
RocketModemII™ V.90
Hardware Installation Card