1-12 Introduction
Hitachi Compute Rack 220H CRU Replacement Guide
Extension network interface connectors
Different network interfaces are added depending on which LAN mezzanine is
installed.
• LAN mezzanine (CN7M0T-Y/CN7M0T-R):
1000BASE-T/100BASE-TX/10BASE-T
Figure 1-9: LAN mezzanine (CN7M0T-Y/CN7M0T-R) status LED
Table 1-10: LAN mezzanine (CN7M0T-Y/CN7M0T-R) status LED indicate
Location Name State Description
1 Link LED
Amber-On*
A 1000BASE-T link with a hub has been
established.
Green-On*
A 100BASE-TX link with a hub has been
established.
Off
A 10BASE-T link with a hub has been
established or link with a hub has not been
established.
The Activity LED shows either case.
2 Activity LED
Green-On
A link with a HUB has been established.
Green-Blink
Data is being transmitted or received.
Off
A link with a HUB has not been established.
* AC power is still supplied even if the power of the system unit is turned off, but this LED will be
turned off because only link by 10BASE-T can be established.
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