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PC/104 Bus RS- 232/422/485 Serial Interface (4 Port): ELK-PC3540
Each port software selectable for RS-232, RS-422, or RS-485
16C864 buffered UART with 128-byte FIFOs
Data rates to 921.6K bps
Automatic RS-485 enable/disable
Termination, pull-ups, and pull-down resistors for each port are software selectable
40-pin header connector
   
   
The ELK-PC3540 is the first PC/104 serial interface module to provide four software-selectable RS-232/422/485 ports. RS-232, RS-422, or RS-485 mode may be selected independently via software command for each of the four ports, eliminating the need for setting jumpers or DIP switches. The board is designed using the XR16C864 UART, which provides a 128-byte FIFO, 8 times larger than boards designed with 16C550 compatible parts. The larger buffers allow error free operation even in high-speed applications. In RS-485 mode the C4-104.ULTRA offers automatic control of the RS-485 driver enable for trouble free network master arbitration. Additionally, the C4-104.ULTRA allows RS-485 network termination, critical to robust multi-drop communication, to be selectively added to the circuit via a simple software command.
Number of ports 4
Communications chip 16C864
Max. data rate 921.6K bps
Max. data distance Up to 4000 ft.
Operating temperature 0 - +70¡ÆC
Storage temperature -50 - +105¡ÆC
Humidity range 10 - 90% R.H.
ELK-PC3540 PC/104 RS-232/422/485 (Software Selectable) Serial Interface
ELK-CA228 IDC40 to (4) DB9 Male Connectors, 8" in Length
ELK-CA110 DB37 Male to IDC40 Ribbon Cable 6" in Length
ELK-TB02 DB37 Male and DB37 Female to 37 Screw Terminals
ELK-CA143 (1) DB37 Female to (4) DB9 Males for Connecting to Any of the DB37 Male Equipped Multi-port Adapters (i.e. 7401, 7402, 7404 etc.) 36" in Length
ELK-DB103 Converts DB9 Male RS-422 to Opto 22 Optomux Compatible DB9 Female
ELK-CA190 Cable Connects Any ASAN ST DB-9 RS-422 Connection to a Sony 9 Pin Connection (SMPTE 207M)
ELK-CA222 IDC40 to IDC40 Ribbon Cable, 18" in Length
ELK-TB10 IDC40 to (4) DB9 Male Terminal Block For Use with the ASAN ST 354x Multi-port Interface Adapter
All specifications within this document are subject to change without notice.