Protech Systems PA-6822 User Manual page 20

COM Port
COM2, COM3, COM4: D-Sub9 Serial Ports (rear IO)
COM2: Co-lay with COM2-1
COM3: Co-lay with COM3-1
PIN ASSIGNMENT
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
Note: COM3 & COM3-1 will not function when jumpers
JP20, JP21, JP22 are set as 2-3 connected (i-Button).
Refer to the section i-Button Function Selection for
details. COM4-2 will not function when COM4-1 is
selected as the printer control interface.
LAN Port
LAN: LAN RJ45 Port (rear IO)
PIN ASSIGNMENT
1 MDIP0
2 MDIN0
3 MDIP1
4 MDIN1
LAN LED Indicator:
Right Side LED
Yellow Color Blinking
Off
Left Side LED
Green Color On
Orange Color on
Off
PA-6822 Series User Manual
PIN ASSIGNMENT
6 DSR
7 RTS
8 CTS
9 RI/+5V/+12V
selectable (Max.
current: 1A)
PIN ASSIGNMENT
5 MDIP2
6 MDIN2
7 MDIP3
8 MDIN3
LAN Message Active
No LAN Message Active
10/100Mbps LAN Speed Indicator
Giga LAN Speed Indicator
No LAN switch/ hub connected.
Chapter 2 System Configuration
1
6
5
9
COM2/
COM3/
COM4/
1 8
Green Yellow
LAN
Page 19