Product Description
Units were removed from working environment and are in good condition. Each was powered on and initialized as expected with the only variant being in fan volume per unit. No squeaks, ticks, or other noise that indicates any immediate issues. May shows signs of normal use such as marks or scratches but otherwise seem to be in good working order. Photos are representative of all units included in listing but may not be the exact one shipped at purchase. Sale is for one unit and power cord.
The PowerDsine 6548 Midspan is the optimal solution for powering IP phones in large installations, offering a revolutionary approach that provides twice the port density in a 19” rack mountable, 1U device.
Features
• 48 Power over Ethernet (PoE) ports
• High port density in 19“ rack mountable, 1U
device
• Safe and cost-effective power distribution
• Fully IEEE 802.3af standard-compliant
• Automatic detection and protection of legacy nonPoE terminals
Benefits
• Safe powering of standard-compliant IP Phones, as
well as pre-standard and Cisco devices
• 50% rack space saving
• Cost saving - network upgrade without replacing existing
switches
• Increased availability and reliability – IP phones are
always alive, even during power outage
• Only one central UPS to back up all IP phone installations
- no need for UPS for each IP phone
• Advanced management features
Specifications
No. of Ports 48
Data Rates 10/100 Mbps
PoE Output Pin Assignment and Polarity: 4/5 (+),7/8 (–)
Output Power Voltage: 52.5 Vdc
User Port Power: 15.4W min. (power management)
Aggregate Power: 400W
Input Power AC Input Voltage: 90 to 264 Vac
Requirements AC Input Current: 5.5 A @ 110 Vac,
2.75 A @ 240 Vac
AC Frequency: 47 to 63 Hz
Dimensions (H)1.73 in x (W)17.24 in x (D)17.72 in
(H)4.4 cm x (W)43.8 cm x (D)30.2 cm
Weight 7.5 kg
Management - SNMP V3 MIB support
Optional Built-in web server
DHCP support
Indicators System Indicator: AC Power (Green/Orange)
Per port LED Indicator: Channel Power (Green)
Connectors Input/Output: 8-Pin Shielded RJ-45,
EIA 568A and 568B
Management console port: 8-pin RJ-45 connector
(RJ-45-to-DB9 cable adapter for PC connections is included in
each 6548/AC/M unit)
Environmental Operating Ambient Temperature:
Conditions 32° to 104°F (0 to 40°C)
Operating Humidity:
Maximum 90%, non-condensing
Storage Temperature:
–4° to 158°F (–20° to 70°C)
Storage Humidity:
Maximum 95%, Non-condensing
Operating Altitude:
–1000 to 10,000 ft. (–304.8 to 3048 m)
Thermal 300 BTU/hrs
Rating
Regulatory CE
Compliance
Electromagnetic FCC Part 15, Class B with FTP cabling
Emission & EN55022 (CISPR 22) class B with FTP cabling
Immunity EN55024 (CISPR 24)
VCCI
Safety Approval UL/cUL per EN 60950
GS Mark per EN 60950
