参数资料
型号: 20-151-0178
厂商: Rabbit Semiconductor
文件页数: 36/162页
文件大小: 0K
描述: CABLE CONVERTER RS-232 TO USB
标准包装: 1
附件类型: USB 至 RS232 适配器
适用于相关产品: 基于 Rabbit 的板
产品目录页面: 619 (CN2011-ZH PDF)
其它名称: 20-151-0178-ND
316-1181
4.3.3 RS-485
You can select an RS-485 communications channel with or without termination or jumpered termination
for the most flexibility. The header J8, between J6 and the RS-485/RabbitNet port, is the header for RS-
485 jumpered termination. J8 pin numbers are marked in Figure 4-8 .
Figure 4-8 Location of J8 for RS-485 Jumper Termination
See Table 4-4 to determine jumper setting for enabling/disabling termination.
Table 4-4. Jumper Settings for RS-485 Termination
Termination Status
Enabled
Disabled
Jumpered Pins
1 - 2 and 5 - 6
No jumpers
For more information on termination see Section 5.2 .
The RS-485 lines come out on connector J6 (see Figure 4-2 ). Signal A is pin 8 (485+) and signal B is pin 7
(485-). The RS-485 protocol is a packet driver implemented by the library packet.lib , which can be
found in the folder named “lib” where you installed Dynamic C.
30
RabbitFLEX BL300F Options
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