Citizen CT-S851 Type II User Manual page 29

LED Functions
The tables below explain how to interpret LED indications.
1. Network transmission speed
Transmission speed
100Mbps
10Mbps/Not connected
2. Network status
Status
Connected
Not connected
Data transmission in
progress
3. Board status
Status
No printer connection
Connecting with printer
No network connection
Getting IP address
Connected with network
Resource error
System error
1 2
LED (green)
Lit
Unlit
LED (yellow)
Lit
Unlit
Flashing
LED (green) LED (red)
Unlit
Lit
— Unlit
— Flashing
(0.5-second
cycle)
—
Alternate flashing
(0.5-second cycle)
Alternate flashing
(0.1-second cycle)
— 25 —
10/100BASE
3
— Board is not connected with a printer.
— Board is connected with a printer.
Board is not connected with a network.
Getting an IP address from the DHCP
server.
Lit Network connection complete.
Board is unable to operate normally.
Board is unable to operate normally.
Description