Systems Manual 11The existing Base Station system configuration can be automaticallydownloaded to the scanner. This automatic download feature is config-urable and can be disabled. See the section, Common Configuration formore information about this feature. If downloading occurs, a slightdelay with link verification announcement will occur.VerifyingScanner-to-BaseStationCommunicationsPoint the linked scanner at a sample bar code from Appendix A, andpull the trigger (see How to Scan for tips on scanning bar codes). Watchthe TX/RX (transmit/receive) indicator LED on the Base Station and/or scanner green LED while scanning the bar code. The LEDs shouldflash momentarily as the two devices communicate. If no communica-tion is indicated, see the section titled, If the Scanner Fails to Link with theBase Station.When the scanner is programmed to do so, communication can also beindicated by a second "acknowledgement" tone1 that is sounded after a"good read" tone. If a transmission error beep (warble) is heard follow-ing a "good read" tone instead of the single acknowledgement tone,communication between the devices may have failed 2. Refer to the sec-tions Using the PowerScan RF System, and Maintenance and Troubleshoot-ing for possible remedies, should this occur.Using the PowerScan RF SystemThis section covers the following topics:• Battery Charging and Maintenance• How to ScanCAUTIONSince a new/replacement scanner may have beenshipped with a custom configuration or may havebeen modified with other special programming, itmay not be desirable to download a potentiallyolder configuration from an existing Base Station.In this case, reference the RF Programmable Fea-tures section of this manual, or the ConfiguratorExpress™ On Screen Programming Software andconsider uploading the scanner’s newer configura-tion to the Base Station prior to linking.1. See LED and Beeper Indications for more details about beeper signals.2. Other reasons for a "warble" are that the Base Station may be configured differently than the scan-ner, or that the system’s interface doesn’t support the symbology (bar code type) you’re trying toscan.