RS-232 Communications

Flow Control Selection

Flow control signals regulate data flow for proper communication. To enable or disable the flow control, change the J2 FLW jumper according to Table 2-7. With flow control enabled, you can use either software or hardware protocols to control flow rates. You will need to remove the cover to change any jumpers. See “Changing Internal Jumpers” on page 2–8.

Table 2-7Jumper J2 Flow Control Section

closedJ2FLWJumper(default) SettingConditionDisable Flow Control

open

Enable Flow Control

Once flow control is enabled, two flow control methods are available. You can select software based XON/XOFF flow protocol or hardware based RTS/CTS by cha ing an inter al jumper. Table 2-8shows the flow control conditions wi h regards to the J2 XON jumper.

Table 2-8

J2 Flow Control Protocol Selection

 

 

closedJ2XON(default)JumperSettingConditionHardware Flow Control

 

(RTS/CTS protocol)

 

 

open

Software Flow Control

 

(XON/XOFF protocol)

 

 

TM-XR9B-01XN

2–19

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Xantrex Technology ENET-XFR3 manual Flow Control Selection, 7Jumper J2 Flow Control Section