DGS-3130 Series Layer 3 Stackable Managed Switch Hardware Installation Guide
13
LED
Description
Stack ID
This 7-segment LED can display numbers from 1 to 9 and the following letters H,
h, E, and G. The stacking ID (1 to 9) can be assigned manually by the user or
automatically by the system.
The letter ‘
H
’ will be displayed if this switch is the
master switch
in the stack.
The letter ‘
h
’ will be displayed if this switch is the
backup master switch
in the
stack.
The letter ‘
E
’ will be displayed if there was an error in the system’s self-test.
The letter ‘
G
’ will be displayed when the
Safeguard
engine entered the
exhausted mode
.
Please refer to the “
LED Indicators
” section in the
Appendix A
- Technical Specifications for more LED information.
Rear Panel Components
The rear panel of this switch features a security lock, a GND, an AC power connector, a power cord retainer hole, and
an outlet for an external redundant power supply.
Figure 2-3 Rear panel view of the DGS-3130-30TS
Components that can be found on the rear panel of this switch are listed in the table below.
Component
Description
Security Lock
Provide a Kensington-compatible security lock to be able to connect to a secure
immovable device. Insert the lock into the notch and turn the key to secure the
lock. The lock-and-cable apparatus should be purchased separately.
Switch GND
Use an electrical grounding wire and connect one end of the wire to the Switch
GND and the other end of the wire to an electrical grounding point most commonly
found on the Switch mounting rack itself.
AC Power Connector
The AC power cord with a three-pronged AC power connector can be plugged into
this receptacle to supply the Switch with 100-240 VAC power at 50-60 Hz.
Power Cord Retainer Hole
The power cord retainer hole is used to insert the power cord retainer to secure
the AC power cord.
Redundant Power Supply
An optional external RPS can be plugged into the RPS port found on the rear
panel of switches in this series. When the internal power fails, this optional
external RPS will supply power to the Switch immediately and automatically.
Side Panel Components
The side panels of this switch contain heat vents, fans, and rack-mounting screw holes. The heat vents are used to
dissipate internal heat and facilitate internal air circulation. Do not block these openings. Leave at least 4 inches of
space at the sides of the Switch for proper ventilation. Without proper heat dissipation and air circulation, system
components might overheat which could lead to system failure or even severely damaged components.
