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USER’S MANUAL
MIT-904P/908P/912P
Multiport Passive PoE Injector
MSTRONIC CO., LTD.
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User’s Manual MIT-904P/908P/912P
MSTRONIC CO., LTD.
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1. Introduction
The MIT-904P/908P/912P is a 4/8/12 ports passive PoE injector, 1U rack mount
upgradeable from 4 to 12 ports, in a 10/100/1000BaseTx Ethernet network, over
TIA/EIA-568 Category 5/5e/6 cabling. It is power on all 4 pairs of the cabling.
Features
4/8/12 port Passive PoE Injector (No detection)
Support 4/8/12 ports full load, max. 300W/600W/900W
AC input (100-240 VAC, 50/60 Hz)
Independent overload and short-circuit protection per module
Individual power status indicator
Supports IEEE 802.3af/at/bt non-standard device
Standard 19” or 23” rack mountable
DIY upgrade from 4 port to 12 port available
2. Hardware Description
Front Panel
Figure 2-1. The Front panel of MSE MIT-904P/908P/912P
The Front Panel of the MSE MIT-904P/908P/912P consists of 4/8/12 x RJ-45 Ethernet
ports (data), 4/8/12 x RJ-45 PoE ports (data + power), 4/8/12 x LED port indicators,
each LED indicates the individual port power status.
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User’s Manual MIT-904P/908P/912P
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LED Indicators
The LED Indicators gives real-time information of systematic operation status.
Color Status Description
Green On Power delivering
RED On Over current
-- Off No power delivered
Table 2-1. The Description of LED Indicators
Rear Panel
The C20 AC inlet, and 4 Ventilation fans are located at the rear panel of
MIT-904P/908P/912P. The device will work with AC in the range 100-240V AC,
50-60Hz.
Power On
Connect the power cord to the power socket on the rear panel of the unit. The other
side of power cord connects to the power outlet. The internal power supply of the PSE
works with voltage range of AC in the 100-240VAC, frequency 50~60Hz. Check the
indicators on the front panel to see if power is properly supplied.
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User’s Manual MIT-904P/908P/912P
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3. Technical Specification
PARAMETER MIT-904P MIT-908P MIT-912P
Data Ports 4 8 12
PoE Ports 4 8 12
Data Rates 10/100/1000 Mbps
Output power 75Watt:Per port @DC55V
Power consumption
(maximum)
300W 600W 900W
PoE pin assignment
Data pair A(1&2,V-),data pair B(3&6,V+),
Data pair C(4&5,V+) & data pairD(7&8,V-)
AC Input 100~240VAC,50/60Hz
AC Input Current require
6A@ 120VAC
or
3A@230VAC
12A @120VAC
or
6A@230VAC
18A@120VAC
Or
9A@230VAC
PoE protection Over-current:1.6A
Indicator
Per port: Green: PoE active
Red: over current
Off: no power
Environment
Operating Temperature: -20℃~60℃
Storage Temperature: -40℃~85℃
Humidity: 10%~95%RH (non condense)
Dimensions 430mm(L) x 403mm(W) x 44mm(H), 19” Rack-Mount / 1U
Weight 3.6kg 4.9kg 6.5kg
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