LED indicator light: Red Power on Green or Amber Transmitting data No light No operation RS232 serial DB9 male connector Data OUT USB male connector Data IN Figure 1: Xircom PortGear USB to DB9 serial adapter Copyright 2001 Adaptive Micro Systems, Inc. This document discusses only the Xircom PortGear USB to DB9 serial adapter. USB-to-DB9 adapters are available at a variety of manufacturers and suppliers. The adapter provides an additional connection for computers that do not have enough RS232 serial COM ports. Introduction Purpose This document shows you how to connect an Alpha or BetaBrite sign to a computer using a Universal Serial Bus (USB) port and a USB-to-DB9 cable adapter. 1 TM TechMemo # PRIORITY: Normal DATE: JTITLE: ECO REFERENCE: PRODUCT(S) AFFECTED: SUMMARY: Installing a USB-to-DB9 adapter to connect a sign to a PC N/A All Alpha and BetaBrite electronic signs If you have an available Universal Serial Bus (USB) port on your computer, you can install a USB-to-DB9 adapter to connect Alpha or BetaBrite signs.
