H3C Technologies H3C SR6600-X - Manual (Page 46)

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Front panel
Figure 28 Front panel
(1) Carrier signal LED (LINK/ACT) (2) TX interface
(3) RX interface (4) Captive screw
(5) Loopback/alarm LED (LP/AL)
LEDs
Table 41 LED description
LED Status Description
LINK/ACT
Off No carrier signals are being received.
On Carrier signals are being received.
Flashing Data is being transmitted or received.
LP/AL
Off No loopback or alarms occur.
On The interface is in loopback state.
Flashing
A minimum of one alarm of the type of AIS, LFA, or RAI has occurred.
• LFA—Loss of frame alignment.
• AIS—Alarm indication signal.
• RAI—Remote alarm indication.
Interface specifications
Table 42 Interface specifications
Item Specification
Connector type SMB
Number of interfaces 2
Interface standards
• G.703
• G.704
• G.752
• AT&T TR 54014
• AT&T TR 62415
• ANSI T1.107
Interface speed 44.736 Mbps
Cable type 75-ohm T3 coaxial cable
Working modes T3/CT3