SC105CS I / O至9引脚RS-232 DCE同步接口

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1. Can an SC105 be used to talk to two devices simultaneously via two addresses?

   The SC105 uses the RS-232 standard, which is not compatible with multidrop communications (more than two devices on the same RS-232 bus). There are some third-party devices on the market that allow multiple devices to communicate over the same RS-232 link.

2. SC105可用于将PDA替换为CS I / O端口设备吗？

   是的，如果PDA有RS-232端口。

3. Does a CRBasic data logger require a special interface for the CS I/O port?

   Depending on what equipment is being used, a special interface may be required to attach a specific device to the data logger’s CS I/O port. In general, devices with a CS I/O port can be attached directly to the data logger’s CS I/O port. Devices with an RS-232 port require a special interface, such as theSC932A要么SC105, to connect to the data logger’s CS I/O port.

4. 可以在SC105和PC之间使用直线电缆

   Both the computer’s serial port and the SC105’s RS-232 port are configured as data terminal equipment (DTE) devices. Because both components are DTE, a null modem cable is needed between them.

5. 如何连接SC105和数据记录器？

   SC105需要直接或包含在内的数据记录器的CS I / O端口SC12cable. The SC105’s RS-232 port needs to be connected to the PC’s serial port using the included null modem cable.

6. 为什么SC105建议将Ravenxtv或Ravenxtg连接到数据记录器与Pakbus操作系统？

   Using an SC105 with a RavenXTV or RavenXTG cellular modem allows for the two devices to communicate at differing baud rates. It also allows for other devices, such as an RF401 radio or CR1000KD handheld display, to simultaneously be connected to the data logger’s CS I/O port.

7. What is the difference between the SC105 and the SC932A?

   SC932A仅兼容数据记录器和调制解调器之间的调制解调器（ME）双向通信。相反，SC105与ME和用于通信（SDC）通信的同步设备兼容，以及具有内部缓冲数据的能力。

8. Can an RS-232 device be directly connected to the CS I/O port of a data logger?

   An RS-232 device cannot be directly connected to the CS I/O port of the data logger. A peripheral, such as an SC932A or SC105, is required.

9. What is needed to connect a modem to a data logger?

   Most third-party modems require a null modem cable, SC105, SC110 cable, or SC932A to interface with a data logger. Many modems manufactured by Campbell Scientific can connect directly to a data logger’s CS I/O port using anSC12或串行电缆。