D-Link xStack DGS-3120 Series Reference Guide

xStack® DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch Web UI Reference Guide
441
Figure 10-22 Cable Diagnostics window
The fields that can be configured are described below:
Parameter Description
Unit
Select the unit you want to display. (EI and SI Mode Only)
Port
Select a port you wish to display.
Click the Test button to view the cable diagnostics for a particular port.
NOTE: Cable diagnostic function limitations: Cable length detection is only supported on GE copper
ports. Ports must be linked up and running at 10/100/1000Mbps. Crosstalk errors detection is
not supported on FE ports.
Fault messages:
Chapter 1 Open – The cable in the error pair does not have a connection at the specified position.
Chapter 2 Short – The cables in the error pair has a short problem at the specified position,
Chapter 3 Crosstalk – The cable in the error pair has a crosstalk problem at the specified position.
Chapter 4 Unknown – The diagnosis does not obtain the cable status, please try again.
Chapter 5 NA – No cable was found, maybe it's because cable is out of diagnosis specification or the quality
is too bad.

D-Link xStack DGS-3120 Series Specifications

General

MAC Address Table	16K entries
Ports	10/100/1000BASE-T ports
VLANs	4094
Jumbo Frame	Up to 9KB
Power Supply	Internal power supply (depending on model)
Power over Ethernet (PoE)	No
Layer 3 Features	RIP
Quality of Service (QoS)	8 queues per port, DiffServ
Security Features	ACLs
Management	Web-based, CLI, SNMP
Operating Temperature	0°C to 40°C
Storage Temperature	-40°C to 70°C
SFP Ports	Combo 10/100/1000BASE-T/SFP ports and/or dedicated SFP/SFP+ ports (depending on model)