Figure 3-8 T3/E3-Tx High-Speed Module Leds; Table 3-4 High-Speed Module Leds - Hatteras HN4000 Hardware Installation Manual

3-8
High-Speed Module Ports and LEDs
The T3/E3‐TX module (Figure
a FR SYNC (frame sync) LED, and an LP BACK (loop back) LED.
Figure 3-8 T3/E3-TX High-Speed Module LEDs
Table 3‐4 describes the high‐speed modules' LEDs.
Table 3-4 High-Speed Module LEDs
LED Marking
LINK
(All modules)
ACT
(All modules)
1000
(100/1000BASE-T
modules only)
T3
(T3/E3-TX
modules only)
E3
(T3/E3-TX
modules only)
FR SYNC
(T3/E3-TX
modules only)
LP BACK
(T3/E3-TX
modules only)
HN4000 Hardware Installation Guide
3‐7) has LINK and ACT (activity) LEDs, T3 and E3 mode LEDs,
LED State Description
Off No connection has been detected between the port and a network device.
Solid Green A communication link has been established between the port and a network
device (normal operation).
Off No traffic is being sent or received on the port.
Blinking Green Blinks as traffic passes through the port.
Off Port is operating at 100 Mbps.
Solid Green Port is in T3 (DS‐3) mode.
Solid Green Port is in E3 mode.
Solid Green The DS‐3/E‐3 framer is in sync.
Solid Green The device's line interface is looped back.
920550-5020 Rev 14