12
Part 1 - Introduction
4
SFP Uplink Slots
These ports are used to connect the switch to higher tier devices that are some distances
away via optical cables. These ports are useful when cascading multiple network devices.
Model
Port Number
CRIS12
11 (top) and 12 (bottom)
CRIS28
27 (left) and 28 (right)
• If not using for uplinking purposes, these ports can be used as service ports.
• These ports operate in full duplex mode only.
• For more information on SFP modules supported by the SFP uplink ports, refer to Part
3 - Miscellaneous > Supported SFP Transceiver Module List.
5
RJ-45 Uplink Port LEDs
These LEDs indicate the status of the RJ-45 uplink ports.
Model
Port LEDs
CRIS12
25 26
10
9
CRIS28
25 26
10
9
The LED color indicates connection and communications speeds with the connected device.
LED Status Indications
Mode
Status
Color
Description
LNK/ACT
(Link/Activity)
On
Amber
Normal network connection at 10/100Mbps
Green
Normal network connection at 1000Mbps
Blinking
Amber
Data transmission over the network in progress at
10/100Mbps
Green
Data transmission over the network in progress at 1000Mbps
Off
-
No network connection or a problem with the connection
