Perle Systems Iolan Sds4 Hl Device Server 4030370 User Manual

Hardware and Connectivity  36

Getting to Know Your IOLAN

This section describes the hardware components found on your IOLAN unit.

All IOLANs have the same basic hardware components to allow you to connect to serial devices, 
connect to the network, monitor LAN and serial activity, and manage the unit. Below is a list of these 
components:

z

Serial Port(s)—Connector(s) that will be used to connect to a serial device.

z

Activity—This LED blinks to indicate LAN activity. (For medical unit models, the LED is 
indicated by the 

 symbol.)

z

Link10/100—This LED indicates the Ethernet connection speed for desktop models only:
–

Green—10 Mbits

Amber—100 Mbits

Off—no LAN connection

z

Link10/100/1000—This LED indicates the Ethernet connection speed for rack mount models 
only:
–

Green—10/100 Mbits

Amber—1000 Mbits

Off—no LAN connection

z

Power/Ready —This LED can cycle through several colors (amber, green, red) during a boot 
process, but should complete with a solid green light. The label of the LED, and whether or not 
the LED blinks green after power depends on the IOLAN, as shown in the table below. You can 
learn more about the Power/Ready LED in 

. 

Desktop

Power/Ready

Solid — Indicates the 

IOLAN has completed the 

power up cycle.
Blinks — After power up, a 

blinking green light 
indicates that the console 

switch is in the on position.

Solid — Indicates the 

IOLAN has a fatal error.
Blinks — After power up, a 

blinking red means the 

IOLAN has a critical error.
See 

 for 

possible causes.

Rack mount

System Ready

Solid — Indicates the 

IOLAN has completed the 

power up cycle.

Solid — Indicates the 

IOLAN has a fatal error.
Blinks — After power up, a 

blinking red means the 

IOLAN has encountered a 
critical error.
See 

 for 

possible causes.