Port Settings

Connecting a 3G Router over the DO Port

Considering the restrictions on the current that can pass through the DO port of the SmartLogger, you need to determine the number of DO ports to be used for the control based on the maximum power supply current of the 3G router (the maximum power supply current can be calculated based on the maximum power consumption and DC power supply voltage).

• When the power supply current is smaller than 1 A, use one DO port.
• When the power supply current is larger than 1 A but smaller than 1.6 A, use two DO ports.
• When the power supply current is larger than 1.6 A but smaller than 2.4 A, use three DO ports.
• When the power supply current is larger than 2.4 A, access is not allowed because the current exceeds the upper limit.

Connect one DC power cable of the 3G router to one of the DO ports, power on or off the wireless module by connecting or disconnecting the DO dry contact to control the reset of the 3G router.

Figure 7-49 Connecting one DO port

Figure 7-50 Connecting two DO ports

Figure 7-51 Connecting three DO ports

Log in as Advanced User. Choose Settings > DO, and set the corresponding DO port to Reset the external router.

Figure 7-52 DO configuration

Connecting the Horn Strobe over the DO Port

Connect one DC power cable of the horn strobe to one of the DO ports, and power on or off the horn strobe by connecting or disconnecting the DO dry contact to achieve the audible and visual alarm for grounding faults.

Log in as Advanced User. Choose Settings > DO, and set the corresponding DO port to Ground fault audit and vis alm.

Figure 7-53 DO Configuration

Context

The SmartLogger provides a USB port, which has a power capacity of 5 V/1 A. If the DC power cable of the 3G router has a standard USB connector and has a maximum current of less than 1 A, it can directly connect to the USB port on the SmartLogger. Hence the SmartLogger can power on or off the 3G router, which allows the SmartLogger to control the reset of the 3G router when the communication link is interrupted.

• Only the SmartLoggers in versions later than V100R001C90SPC300 enjoy this function.
• If the maximum working current of the 3G router is greater than 1 A, it cannot be connected over a USB port.

Connecting a 3G Router over a USB

Connect the USB connector of the DC power cable of the 3G router to the USB port on the SmartLogger, as shown in Figure 7-54.

Figure 7-54 Connecting the 3G router and the SmartLogger

USB configuration

After connecting the 3G router to the SmartLogger properly, you can set USB parameters over the WebUI to make the external 3G router automatically reset if the SmartLogger fails to connect to the management system, email server, or FTP server within 30 minutes.

Because of permission restriction, log in as Advanced User. Then choose Settings > USB.

Figure 7-55 USB configuration