UFC921A101輸出模塊,ABB怎么使用
P2適配器板的功能包括：
? 50針（3排VME背板）或68針（5排VME背板）背板）連接至MVME761和/或的SCSI電纜連接器其他SCSI設(shè)備? 跳線可選有源SCSI端接電阻器
? 由+5V直流電源開發(fā)的熔斷SCSI終端電源接頭P2處
? 連接至MVME761的64針VME連接器串行接口模塊
UFC921A101輸出模塊MVME761上的同步串行端口可通過串行端口配置接口模塊（SIM），與適當?shù)奶€一起使用
過渡模塊和基板上的設(shè)置。SIM是小型插件印刷電路板，包含轉(zhuǎn)換所需的所有電路TTL電平端口，用于各種工業(yè)標準串行接口（如EIA-232、EIA-530等）所需的標準電壓電平。SIM是可用于以下配置：本章總結(jié)了以下幾組的引腳分配：MVME2700的互連信號：
? 具有MVME712M通用引腳分配的連接器作為MVME761兼容版本的基板，下表僅提供引腳分配。有關(guān)詳細信息有關(guān)各種互連信號的說明，請咨詢支持部門MVME2700單板的信息文檔包計算機或過渡模塊的支持信息部分必要時提供文件。
通用連接器? 具有特定于MVME761的引腳分配的連接器-基板的兼容版本下表描述了使用相同引腳的連接器MVME712M和MVME761兼容版本的作業(yè)基板的。LED夾層連接器（J1）
14針連接器（基板上的J1）提供基板和LED夾層模塊。在基板上連接器是一個2x7頭。在LED夾層上，它是一個2x7表面安裝插座條。卸下LED夾層可以使用夾層連接器用作遠程狀態(tài)和控制連接器。在此應(yīng)用中，J1可以連接到用戶提供的外部電纜，以將重置和中止信號以及LED線路傳輸?shù)轿挥贛VME2700。最大電纜長度為15英尺。引腳分配為
The features of the P2 adapter board include:
? A 50-pin (3-row VME backplane) or 68-pin (5-row VME
backplane) connector for SCSI cabling to the MVME761 and/or to
other SCSI devices? Jumper-selectable active SCSI terminating resistors
? Fused SCSI terminator power developed from the +5V DC present
at connector P2
? A 64-pin VME connector to the MVME761
Serial Interface Modules
The synchronous serial ports on the MVME761 are configurable via serial
interface modules (SIMs), used in conjunction with the appropriate jumper
settings on the transition module and base board. The SIMs are small plugin printed circuit boards which contain all the circuitry needed to convert
a TTL-level port to the standard voltage levels needed by various industrystandard serial interfaces, such as EIA-232, EIA-530, etc. SIMs are
available for the following configurations:This chapter summarizes the pin assignments for the following groups of
interconnect signals for the MVME2700:
? Connectors with pin assignments common to MVME712M as well
as MVME761-compatible versions of the base boardThe following tables furnish pin assignments only. For detailed
descriptions of the various interconnect signals, consult the support
information documentation package for the MVME2700 single board
computer or the support information sections of the transition module
documentation as necessary.
Common Connectors? Connectors with pin assignments specific to MVME761-
compatible versions of the base board
The following tables describe connectors used with the same pin
assignments by MVME712M- as well as MVME761-compatible versions
of the base board.LED Mezzanine Connector (J1)
A 14-pin connector (J1 on the base board) supplies the interface between
the base board and the LED mezzanine module. On the base board, this
connector is a 2x7 header. On the LED mezzanine, it is a 2x7 surfacemount socket strip.
Removing the LED mezzanine makes the mezzanine connector available
for service as a remote status and control connector. In this application, J1
can be connected to a user-supplied external cable to carry the Reset and Abort signals and the LED lines to a control panel located apart from the
MVME2700. Maximum cable length is 15 feet. The pin assignments are
as follows:
