BBG-8000

Introduction

The BBG-8000 is a multiprocessor based, 6U VMEbus format serial protocol converter. It will operate in a VMEbus backplane or in a stand alone mode requiring only a +5 volt DC power supply. The BBG-8000 is designed to operate with an eight channel RS-232 serial multiplexor. It provides interfacing to four channels of RS-232, one channel of synchronous MIL-STD-188-114, two channels of RS-422, and one channel of 16 bit discretes. The four channels of RS-232 conversion support hardware handshaking signals RTS, CTS, DCD, and DTR as well as full duplex signals TXD and RXD.

The asynchronous RS-232 to synchronous MIL-STD-188-114 supports hardware handshaking signals RTS and CTS as well as simplex signals TXD and RXD, and clock signals TXCLK and RXCLK. The TXD and RXD signals have 32 KBit FIFO memory buffers controlled by the respective TXCLK and RXCLK allowing synchronous baud rates of several megabits per second.

The two channels of RS-422 conversion supports hardware handshaking signals RTS, CTS, DCD, and DTR as well as full duplex signals TXD and RXD.

The 12 bit discrete parallel to RS-232 conversion supports TTL level input signals and is factory programmable for user required serial data streams. Serial baud rates are switch selectable for 1200, 2400, 4800, 9600, and 19,200 bits per second.

6U VMEbus FORMAT
OPERATES IN VMEbus BACKPLANE OR STAND ALONE
EIGHT CHANNELS OF SERIAL CONVERSION
- FOUR RS-232 TO RS-232
- ONE RS-232 ASYNCHRONOUS TO MIL-STD-188/114 SYNCHRONOUS
- TWO CHANNELS OF RS-232 TO RS-422
- ONE 12 BIT PARALLEL TO RS-232
DUAL MICROPROCESSOR CONTROLLED
KG-84A, KG-84C or KY-100 COMPATIBLE
32 KB TRANSMIT AND 32 KBIT RECEIVE FIFOs ON SYNCHRONOUS INTERFACE