Product Description:
The XVME-400 and XVME-401 four-channel serial I/O modules are single-high, single-wide VMEbus modules, providing four serial communication channels for the VMEbus system. The main difference between XVME-400 and XVME-401 lies in their communication interfaces: XVME-400 offers four RS-232C serial ports, while XVME-401 provides four RS-422A/RS-485 serial ports. Both modules contain two Z8530 serial communication controller (SCC) chips, providing various communication modes, including asynchronous, byte synchronous, and bit-oriented protocols. Each channel can be independently programmed and has its own baud rate generator and modem signal control. The VMEbus interface directly maps the Z8530 SCC chips to the short I/O address space, starting from the 1k-byte boundary selected by jumpers. The modules can also be jumpered to generate interrupts at any of the seven VMEbus interrupt levels. The two Z8530 SCC chips can generate a total of 16 different interrupt vectors. For applications where I/O is not allowed to be routed from the front panel, XVME-490 and XVME-491 provide the same functionality as XVME-400 and XVME-401. In the 6U form factor, I/O is routed through the VMEbus P2 connector on the back of the circuit board.
Features:
Four serial ports
Single (3U) size (XVME-400/401)
Double (6U) size (XVME-490/491)
Asynchronous, single synchronous, double synchronous, HDLC, SDLC operations
Zilog Z8530 serial communication controller
Modem control
Compatible with RS-232C or RS-422A/RS-485
Independent baud rate generator for each signal channel
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