Features and Benefits
1-7
1
Power Supply Receptacles
There are two power receptacles on the rear panel of the switch. The standard
power receptacle is for the AC power cord. The receptacle labeled “RPS” is for the
optional Redundant Power Supply (RPS).
Figure 1-5 Power Supply Receptacles
Features and Benefits
Connectivity
• 24 (ES3526YA) or 48 (ES3550YA) 100BASE-TX ports, 2 1000BASE-T ports, and
2 combination 1000BASE-T/SFP ports for easy integration and for protection of
your investment in legacy LAN equipment.
• Auto-negotiation enables each RJ-45 port to automatically select the optimum
speed (10, 100 or 1000 Mbps), and the communication mode (half or full duplex)
if this feature is supported by the attached device; otherwise the port can be
configured manually.
• 100BASE-TX and 1000BASE-T RJ-45 ports support auto MDI/MDI-X pinout
configuration.
• Unshielded (UTP) cable supported on all RJ-45 ports: Category 3 or better for
10 Mbps connections, Category 5 or better for 100 Mbps connections, and
Category 5, 5e or 6 for 1000 Mbps connections.
100-240V~ 50-60Hz 1.5A
RPS
DC
12V 4.5A
ES3526YA
ES3550YA
100-240V~ 50-60Hz 2A
RPS
DC
12V 4.5A