IS220PTURH1B通用燃机卡件,IS220PTURH1B英文说明
总线安装指南非屏蔽导线的最大外露长度应为5cm（2in）。
为了增加保护，每个屏蔽排流线应使用意大利面管，防止屏蔽进出电线相互接触，或接触信号线。1.将串行1连接到先前设备的串行1端子和下一个设备。
2.将串行2连接到先前设备的串行2端子和下一个设备。
3.将屏蔽连接到前面设备的屏蔽。连接屏蔽出到屏蔽下一个设备。如果牛是第一个总线上的设备，屏蔽可以保持未连接。如果是最后一次总线上的设备，屏蔽可以保持未连接。
IS220PTURH1B通用燃机卡件4、将两根导线插入同一接线板位置时导线尺寸必须为0.86mm2（18AWG）或更小。两条电线应大小和样式相同。不要将绞合线与实心线混合在相同的位置。如果任一总线终止于NIU，则连接75、100、120或150-串行1和串行2端子之间的欧姆端接电阻器。这个建议使用套圈将每个电阻器引线压接至对应的串行线。如果未使用套圈，则扭转每个电阻器导线与相应的串行线焊接在一起之前将导线插入接线板。系统总线安装指南适当时，串行总线可被视为2级电路遵循接线实践。最大总线长度可能会受到影响当安装需要高压额定CM额定值时。CM类型可以替换CL2，但不能反之亦然。无论电缆敷设长度如何，都不要混合使用不同阻抗的电缆。请勿在长距离和/或嘈杂的安装中混合电缆类型。其他未指定阻抗的小尺寸双绞线屏蔽线可用于使用75欧姆终端，短距离运行50英尺或更少。选择电线类型可能受到地方和国家规范及行业的限制标准。咨询电缆制造商以确定电缆的适用于特定类型的安装。
Bus Installation Guidelines
The maximum exposed length of unshielded wires should be 5cm (2in).
For added protection, each shield drain wire should be insulated with
spaghetti tubing to prevent the Shield In and Shield Out wires from
touching each other, or the signal wires.
1. Connect Serial 1 to the Serial 1 terminals of the previous device
and the next device.
2. Connect Serial 2 to the Serial 2 terminals of the previous device
and the next device.
3. Connect Shield In to Shield Out of the preceding device. Connect
Shield Out to Shield In of the next device. If the NIU is the first
device on a bus, Shield In can be left unconnected. If it is the last
device on a bus, Shield Out can be left unconnected.
4. When inserting two wires into the same terminal block position, the
wire size must be 0.86mm2
(18AWG) or smaller. Both wires should
be of the same size and style. Do not mix stranded with solid wire
in the same position.If either bus will terminate at the NIU, connect a 75, 100, 120, or 150-
ohm terminating resistor across the Serial 1 and Serial 2 terminals. The
use of a ferrule is recommended to crimp each resistor lead to the
corresponding serial line. If ferrules are not used, twist each resistor lead
with the corresponding serial line and solder them together before
inserting the wires into the terminal block.
System Bus Installation Guidelines
The serial bus can be treated as a Class 2 circuit when appropriate
wiring practices are followed. Maximum bus lengths may be affected
when installation requires the high-voltage rated CM rating. CM types
can replace CL2, but not vice versa.
Do not mix cables of different impedance, regardless of cable run length.
Do not mix cable types in long and/or noisy installations. Other, smallsize twisted pair shielded wire of unspecified impedance can be used for
