Barnett Engineering B1474 operation manual Indicators, Rts

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6 INDICATORS

The LED indicators on the front case are used to indicate modem status:

RUN	Power is on the modem.
BUSY	The modem is waiting to transmit but is held back by the squelch detector.
RTS	Request To Send from the computer is present or characters have been
	received into the buffer.
CTS	Clear To Send is active.
CD	Carrier is detected on the incoming channel.
RXD	On when a mark is received and off when a space is received.
TXD	On when a mark is transmitted.

The LEDs may be disabled to conserve power by setting SW1.1 off.

B1474

BARNETT ENGINEERING LTD.

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Contents Radio Modem Table of Contents FCC Requirements PTT IntroductionIndicators DIP Switch Settings Specifications GeneralEqualization Full/Half Duplex SQL NotationHardware Handshaking OperationModem Timing Using RTS and CTS No Handshaking, Buffered Software Handshaking Using XON/XOFFNo Handshaking, Non-Buffered Remove The Top Cover Setup ProceduresConnections Line Interface RadioSquelch Polarity LED ControlXON / Xoff Controls Carrier Detect Delay Mode Equalization ModeFull/Half Duplex Mode Send/ReceiveRTS Control WireBuffer Replace The Top CoverRTS IndicatorsConfiguration RTS on Digital Connections AudioBoard Layout Barnett Engineering Product Warranty Connections Appendix a Operation with a GE Marc V Trunking SystemB1474 Software Handshaking Using XON/XOFF No Handshaking