Installation Manual 
Quidway S3000-EI Series Ethernet Switches
  Chapter 7    Optional Interface Modules
 
7-5 
  Caution: 
1) In the case that the optical interface does not connect with an optical connector or the dust-proof cap 
is removed, it is possible for invisible rays to emit from this optical interface. Therefore, do not stare at 
the optical interface. 
2) If no optical connector is installed in the optical interface, make sure a dust-proof cap is placed on it. 
3) Before connecting the optical fiber, make sure the connector matches the adopted optical fiber. 
 
1000Base-LX GL module provides one Gigabit optical interface and uses Single 
Mode optical fiber with a maximum transmission distance of 40km. 
7.3.1  Module Panel and the Indicators 
1000Base-LX GL module panel is illustrated in the following figure. 
1000BASE-LX
GL MODULE
Class 1 Laser Product
LINK
ACTIVE
TX RX
 
Figure 7-5 1000Base-LX GL module panel 
The descriptions of panel indicators are as follows: 
Table 7-5 Meaning of indicators on 1000Base-LX GL module panel 
Indicator Status description 
LINK  Off means that the line is disconnected. On means the line is connected.
 
ACTIVE  Off means that no data is being received or sent. Blinking means data is being received or sent.
 
 
7.3.2  Module Interface Fiber 
1000Base-LX GL module interface matches LC connector. 
 
Figure 7-6 LC connector 
The following table describes the interface attributes of 1000Base-LX GL module.