Datalogic Scanning DS1100 SH2347, DS2200 SH2348 manual Cts

CTS

Like XON/XOFF protocol, CTS protocol is a mechanism used to con- trol data flow out. The CTS input is used to inform the scanner that the host terminal is ready to accept scanned data. When CTS (+) pro- tocol is selected, the scanner waits for a low level on its CTS input before transmitting data. When CTS (-) is selected, the signal polari- ties are reversed and a high level indicates data may be transmitted. The CTS protocol may be programmed independently of the RTS pro- tocol; however, the signal polarities must be the same. You may not select CTS (+) and RTS (-).

RTS

The RTS output from the scanner may be programmed to operate in one of three different modes. In the default mode RTS signals when the scanner is ready to receive commands or data. In the second mode, RTS is in a fixed state. In the third mode, RTS signals when the scanner has data to transmit. The RTS modes are independent of the CTS protocol. However, you must select the same active state for RTS as for CTS. You may not select CTS (-) and RTS fixed low. If CTS (-) is selected, then the active state for RTS will be high.

The specified levels are at the modular connector and are

inverted when using an RS232 converter pod.

NOTE

HA

CTS Protocol = None*

RTS low indicates scanner ready to receive data

HB

Protocol = XON/XOFF

HC

Protocol = CTS (-)

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