Appendix B: MDA-a and MDA-aXP Card Descriptions
7750 SR-a4 and SR-a8 Installation Guide 153
4. Worst Case: Traffic Load: 100% line rate with IMIX at the maximum short duration and at a high temperature
(65ºC)
2-port 10GigE SFP+ and 12-port 1GigE SFP Combo MDA-a
LEDs
Figure 50 shows the 2-port 10GigE SFP+ and 12-port 1GigE SFP Combo MDA-a. Table 67
describes the LEDs.
Table 67: 2-port 10GigE SFP+ and 12-port 1GigE SFP Combo MDA-a LEDs
Label/Part Description LED Display
Pwr / Stat (Power and
Status LED)
Green (slow blink): The MDA-a is loading the firmware and running
diagnostics.
Green (solid): The MDA-a has successfully completed loading the
firmware and running diagnostics, and is operationally up and
administratively up.
Amber (solid): The MDA-a is operationally down but administratively
up.
Unlit: The MDA-a is operationally down and administratively down.
Lnk/Act Link and Activity
LED
Green (solid): Valid communications link established
Green (blink): Port active and receiving or transmitting data
Amber (fast blink): Loopback
Amber (slow blink): Administratively up, but no optic module installed
Amber (solid): Optics installed, but no link present or LOS
Unlit: Laser disabled or port shut down
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