3onedata 7211, User Manual, Page: 3 / 5

Your Serial and Data Communications Expert
Shenzhen 3onedata Technology Co.,Ltd
NO.
NO. NO.
NO. Function
Function Function
Function define
define define
define I/O
I/O I/O
I/O
1 TX+ (send data +) output
2 TX- (send data -) output
3 RX+( receive data +) input
4 NC(null)
5 NC(null)
6 RX-(receive data -) input
7
、
8 NC(null)
2.
2. 2.
2. E1
E1 E1
E1 interface
interface interface
interface 120
120 120
120
Ω
/RJ-45
/RJ-45 /RJ-45
/RJ-45 define
define define
define
NO. NO. NO. NO. Function Function Function Function define define define define I/O I/O I/O I/O
1 NC(null)
2 RX+(receive data +) input
3 RX-(receive data -) input
4 GND(ground)
5 GND(ground)
6 TX+(send data +) output
7 TX-(send data -) output
8 NC(null)
DIP DIP DIP DIP switch switch switch switch setup setup setup setup::::
1. 1. 1. 1. Function Function Function Function setup setup setup setup switch switch switch switch SW1 SW1 SW1 SW1
Impedance Impedance Impedance Impedance setup setup setup setup
NO.1 NO.2 NO.3
ON ON ON: 75 ohm
OFF OFF OFF: 120 ohm
Ethernet
Ethernet
Ethernet Ethernet working
working
working working mode
mode
mode mode setup
setup
setup setup
NO.4 NO.5 NO.6 Ethernet mode
OFF OFF OFF 10M/100M, Fall/half duplex
OFF OFF ON 10M/100M half duplex
OFF ON OFF Fall/half duplex 10M
OFF ON ON 10M, half duplex
ON OFF OFF 100M, full duplex
ON OFF ON 100M, half duplex
ON ON OFF 10M, full duplex
ON ON ON 10M, half duplex