PEP PB-SIO4, Руководство пользователя

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PB-SIO4 Introduction
ID 19957, Rev. 0300 Page 1 - 3 ® PEP Modular Computers GmbH
1. Introduction
1.1 Product Overview
1.1.1 Description
The PB-SIO4 is a quad (four) channel asynchronous RS232 serial piggyback with sup-
port for full duplex RS232 transmit, receive, and RTS/CTS handshake signals.
There are two different versions of the PB-SIO4 available: non-optoisolated and optoiso-
lated. Any version combination can be installed on a single carrier board. Interfacing to
the PB-SIO4 depends on the type of connector provided by the carrier board or optional
adapters.
1.1.2 Features
General:
• Interrupt request line employed, interrupt vector generated by the DUART’s.
• Board ID byte for remote (software) configuration identity checking.
• Compact size, four serial ports within standard industrial I/O piggyback dimen-
sions.
• Easy to maintain. Quick and simple replacement if required.
Hardware:
• Full electrical and mechanical compatibility with the extensive range of carrier
boards.
• All required VMEbus lines are available on the piggyback.
• Optional optoisolated driver/receiver supporting TxD, RxD, CTS, and RTS.
• Optional interface adapters with four 15-pin D-sub connectors. (See Adapter AD-
SIO4 chapter this manual.)
• Extended temperature version available for harsh industrial environments.
1.2 Board Overview
The PB-SIO4 has two connectors for interfacing to the carrier board. Connector ST1
interfaces to the CPU side of the carrier board whereas connector ST2 provides inter-
facing to the external interface side of the carrier board.
This piggyback is fitted with DUART devices (two driver/receiver devices each handling
two of the four serial channels), as well as a GAL device containing the specific interrupt
handling logic and other features such as the I.D. number.
The optoisolated versions have eight optocouplers which are replaced with wire bridges
on the non-optoisolated versions.
Operational configuration of this piggyback is done via jumpers, B1 - B6, located on the
front side of the board.