Modem Setup Requirements - Nortel Meridian 1 Planning, Installation And Operating Instructions

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Modem setup requirements

553-3121-210 Standard 3.0
Chapter 15 – Installing and connecting SDI and Ethernet ports
Configure the modems connected to the Option 11C Compact system as
follows:
• CD (Carrier Detect): Active if carrier detected on incoming call
• CTS (Clear to Send): Normal operation or forced active
• Hardware and software: Disabled flow control.
The ports on the Option 11C Compact system will be disabled if devices
connected to them generate extra "garbage" characters. For this reason,
modems should not be used in the following modes:
• Loopback
• Auto Echo
• Self Test
Note: The SDI ports are designed for use with "dumb" modems. You
can also use "Intelligent" modems if you ensure that the modems do not
enter into modes of operation that will send extra characters to the
system.
Do not use Hyperterminal software to communicate with the Option
11C Compact. Hyperterminal may transmit garbled or unwanted
characters to the Compact, resulting in port failure.
January 1999
CAUTION