19
Front panel
Figure 17 Front panel
(1) Captive screw
(2) SFP port
(3) Ejector lever
(4) SFP port carrier signal LED (LINK/ACT)
LEDs
Table 21 LED description
LED
Status
Description
SFP
GE-1000BASE
-X
LINK/ACT (0 to
3)
(Green)
Off
No link is present.
On
A 1000 Mbps link is present.
Flashing
Data is being transmitted or received at 1000
Mbps.
SFP
POS-155M
LINK/ACT/LP/
AL (4 to 7)
(Yellow/Green)
Steady green
A 155.52 Mbps link is present.
Flashing green
Data is being transmitted or received.
Steady yellow
A loopback exists.
Flashing yellow
An alarm has occurred.
Off
No link is present.
Interface specifications
Table 22 Ethernet fiber port specifications
Item
Specification
Connector type
SFP
Number of interfaces
4
Interface standards
802.3, 802.3u, 802.3ab
Frame format
Ethernet_II
Ethernet_SNAP
Table 23 POS interface specifications
Item
Specification
Connector type
SFP
Number of interfaces
4
Interface standards
SONET OC-3
SDH STM-1
1
2
4
3
