Moxa Technologies VPort 2140 user manual Setting up a Modem Environment, Null Modem

Getting Started

Setting up a Modem Environment

VPort 2140 Video Server provides 2 modem modes: Modem and Null Modem. The null modem mode can be used for point-to-point connections in a local environment. Although the baud rate can be set up to 115.2 Kbps, the actual data rate depends on the Modem connection. For dial-up connections, the VPort 2140 Video Server waits passively for a phone call to establish a point-to-point connection.

The Modem and Null Modem dial-up connections are for initial usage of Video Server. If you have already used an Ethernet connection, reset Video Server to factory defaults before using a dial-up connection. In addition, when using a dial-up connection, the Ethernet socket must be disconnected.

The Modem and Null Modem connections for VPort 2140 Video Server only support the dial-in function, which means that you can access the VPort 2140 Video Server, but VPort 2140 Video Server cannot send alarm messages to you automatically via the Modem and Null Modem connection.

Cable Connection

Null Modem

VPort 2140 User’s Manual 2-7