Black Box PCW22A-R4, PCW22A-R3 manual Data Flow A/S-2G to Synchronous Device

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CHAPTER 4: Operation

Data Flow — A/S-2G to Synchronous Device

Bisynchronous Device

A/S-2G Converter

Asynchronous Device

IF 2270 - 2780

AAAA 32 32 32 32 02 (text up to 80 characters), IF, BCC1, BCC2; etc. (last record 03, BCC1, BCC2, FF FF

IF 3780

AAAA 32 32 32 32 02 (text up to 80* characters with records separated by 1E, last record in block 1E, 03, BCC1, BCC2, FF FF

IF 3741

AA AA 32 32 32 32 02

(up to 128 characters), 03, BCC1, BCC2, FF FF

ACK 1

Send EOT

AA AA 32 32 32 32 37 FF FF

(Echo CR LF EOT)

Line is now idle

*Assumes block size of 80 is selected.

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Contents Protocol Converter FCC Statement Protocol Converter A/S-2G Table of Contents Synchronous Device to Asynchronous Device Specifications RXCIntroduction Unpacking and Inspection InstallationData Flow Control 2 SW2 Switch #4 on = SELF-DIAGNOSTICSData Terminal Ready DTR Signal Options Reconfigure Switch ModeReset Options 5 RS-232 PASS-THROUGH OptionsBaud Rate Options Clear to Send CTS Signal OptionsModem or DIRECT-TO-TERMINAL Connection Carrier Options Preparing the A/S-2G for Connection to a Synchronous DeviceCable Requirement External or Internal Clocking Option Command PASS-THRU Operation Asynchronous Device to Synchronous DeviceUSE of Carriage Return a 2770/2780 Mode Flow ControlVerification of Data Reception Presentation of Data from A/S-2G to Synchronous DeviceLine Turnaround Data Flow A/S-2G to Synchronous Device NAK Echo CR LF Send block F Echo all but CR LF Data Flow A/S-2G to Synchronous Device Synchronous Device to Asynchronous Device Synchronous Input Data FormatEbcdic characters stripped Data Flow A/S-2G to Asynchronous Device Operation EOT Installing or Replacing Proms Transparency Mode of OperationConversions and Connections RS-232 Cable Chart GNDCode Conversions Special Conversions Printed Circuit Board Layout Printed Board Circuit LayoutPark Drive Lawrence, PA