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The Midspan DC is a 48 volt direct
current input power injector for
PoE applications. DC input power is less expensive, more reliable, and
efficient than AC input power. DC power eliminates the multiple AC-DC and DC-AC power conversions
required by using AC power. This results in a 30-40%
increase in backup time for the LAN switch AC-UPS as well as
lower air conditioning requirements due to less heat generated.
Because the Midspan
DC is DC powered, an existing inhouse DC power
plant powers the midspan. The Midspan
DC can also be coupled with an SEI
DC-UPS for a centralized and scalable backup power solution for
all PoE needs.
The Midspan DC is fully compliant with the
IEEE 802.3af PoE standard.
| Ordering - DC midspan requires DC input
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| MODEL #
|
DESCRIPTION
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DIMENSIONS
(W"xD"xH")
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| PH24-DC
|
24
Port, with WEB/SNMP Interfaces |
19 x 17.2 x 1.75
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| PH24-DCNN
|
24
Port, Serial Interface only |
19 x 17.2 x 1.75
|
|
|
| PH12-DC
|
12
Port, Serial & WEB/SNMP Interfaces |
19 x 17.2 x 1.75
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| PH12-DCNN
|
12
Port, Serial Interface only
|
19 x 17.2 x 1.75
|
|
|
| PH6-DC
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6 Port,
Serial & WEB/SNMP Interfaces |
19 x 17.2 x 1.75
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| PH6-DCNN
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6 Port,
Serial Interface only |
19 x 17.2 x 1.75
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| Technical Specifications
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| INPUT POWER
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- Input Voltage: 42 VDC to 57 VDC
- Input Connector:
Molex 03-12-1036 housing with
18-12-1222 terminal
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| OUTPUT POWER
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- Pin Assignments: 4/5 (48 volts), 7/8 (48 volts)
- Output Voltage: 48 Vdc nominal
- Output Power per Port: 15.4 Watts max
- Output Power Total:
96 Watts max (PH6DC/NN)
191 Watts max (PH12DC/NN)
382 Watts max (PH24DC/NN)
- Output Current: 10mA (min.) - 350mA (max) per port.
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| PHYSICAL CHARACTERISTICS
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- Operating Temperature: +32°F to 104°F (0° C to +40°C)
- Storage Temperature: -4°F to +122°F (-20° C to +50°C)
- Humidity: 0 to 95% non-condensing
- Thermal Rating:
25 BTU/hr max (PH6dc/nn, PH12DC/NN, PH24DC/NN)
- Dimensions:
(W) 19 in. x (D) 17.2 in. x (H) 1.75 in.
(W) 483 mm. x (D) 437 mm. x (H) 44 mm
- Weight: 9lbs, 4.1kg
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| MANAGEMENT
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- LED: DC Power, Port Power, Ethernet Link 10/100 mbps
- LED Indicators:
- PORT
- Green - Providing Power
- Flashing Green - Valid signature detected but below specification power consumption.
- Yellow - Fault
- LINK:
- Green - When network connection is established.
- Flashing Green - During network activity
- PWR:
- Green - When Juice Box is powered.
- Connectors:
- Data: RJ45
- Data + Power : RJ45
- Network Interface : RJ45
- Serial Interface: DB-9 (male)
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| REGULATORY
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- FCC Part 15 Class B
- UL 60950-1
- CAN/CSA 60950-1
- CE Mark
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