Changes
/* Description */
== Description ==
TEL-SERDB9 SERX4 Provides USB to Multiprotocol(RS-232, RS-485-Half Duplex, RS485-Full Duplex) serial connection (up to 4 Ports per TEL).
* Simple USB Connection protocol
TEL-SERDB9 SERX4 is utilizing a USB2 interfaceMultiple TEL-SERDB9 SERX4 cards can be installed in a system
== Features ==
== Connection requirements ==
=== Pinout ===
{||-| [[File:TEL-SERDB9_DB9_pinout_diagram.png|thumb|none|600px | DB-9 Pinout]]| [[File:TEL-SERDB9_DB9_Switch_board location.png|thumb|none|300px 273px | Switch Location Diagram]]|}
=== Host interface ===
