D-Link DGS-3130 Quick Install Guide - Page 17

LED Stack ID DGS-3130 Series Layer 3 Stackable Managed Switch Hardware Installation Guide Description when a 10 Gbps port is active or blink amber when a 1 Gbps port is active. The LED will be off when there is no link or activity. 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 2-7 Rear Panel view of the DGS-3130-30S Components that can be found on the rear panel of this switch are listed in the table below. Component Description Security Lock Switch GND AC Power Receptacle Power Cord Retainer Hole Redundant Power Supply 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. 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. 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. The power cord retainer hole is used to insert the power cord retainer to secure the AC power cord. 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. 17