Chapter 2 ___________________________________________________________ Product Overview
VAISALA_________________________________________________________________________ 7
CHAPTER 2
PRODUCT OVERVIEW
This chapter introduces the features, advantages of the product.
Introduction to DXL421
The DXL421 is a leased line modem for the weather stations and other
systems. The operation mode and settings are selectable with the DIL
switch and jumpers. The DXL421 can be used to connect the weather
station to the leased line 2- or 4-wire point-to-point or multi-point
application.
The DXL421 supports standards such as V.21 300 / 300 bps FSK,
V.22 1200 / 1200 DPSK and V.23 1200 /1200 bps FSK.
Assembly
The DXL421 unit has a small enclosure of 20 mm x 80 mm x 76 mm
with DIN rail mounting support that can be connected into various
enclosures. The DXL421 has face connectors where the power supply,
RS-232 and leased line can be connected.
