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参数资料
型号： 9122
厂商： B&K Precision
文件页数： 60/119页
文件大小： 0K
描述： POWER SPLY 0-60V 0-2.5A PROGRAM
标准包装： 1
系列： 9122
类型： 工作台（AC 至 DC）
电源电压： 110VAC，220VAC
输出电压： 0 ~ 60VDC
电流 - 输出： 0 ~ 2.5A
显示器类型： 数字
输出数： 1
尺寸/尺寸： 15.000" L x 8.270" W x 3.150" H（381.00mm x 210.06mm x 80.01mm）
特点： 可编程
功率（瓦特）： 100W
精确度 - 伏特表；安培表： 0.05% + 5mV
稳压 - 线路： 0.01% + 3mV
稳压 - 负载： 0.01% + 3mV
稳流 - 线路： 0.01% + 250µA
稳流 - 负载： 0.01% + 250µA
纹波： 8mV p-p
重量： 13 磅（5.9kg）
其它名称： BK9122
Bus Description
The interface signal lines are organized into three functional groups:
-
-
-
Data lines (8 lines)
Handshake lines (3 lines)
General bus management lines (5 lines)
The bus signal lines use low true logic protocol.
Data lines:
-
-
-
allow transfer of one byte at a time.
Bytes are transferred over the interface in a byte-serial, bit-parallel
manner.
DIO1 represents least significant bit of the byte, while DIO8 represent
most significant bit of the byte transffered over the interface.
Handshake lines:
-
-
-
control byte transfer between devices, using 3-wire handshaking.
the speed of the data transfer is given by the slowest listener, so every
listener can read bytes transferred over the interface correctly.
reception of each data byte is acknowledged.
DAV (Data Valid)
-
-
-
this line is controlled by the Talker
the talker sets DAV line true (active low) when all devices from bus
release NRFD line (NRFD line high).
DAV line true means that data byte is stable on the bus (so it can be
read by the listeners).
NRFD (Not Ready For Data)
-
-
this line is controlled by the Listeners to indicate to the Talker if they
are ready to receive new data.
NRFD line will not go high until all Listeners release the line.
NDAC (Not Data Accepted)
-
-
-
this line is controlled by the Listeners to indicate to the Talker if data
was read from the bus
when NDAC line false (high), addressed Listeners indicate that they
read the data from the bus
NDAC line will not go high until all Listeners release the line.
59
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