Page 10
NEVER ATTEMPT TO OPEN THE CHASSIS OR
SERVICE THE POWER SUPPLY. OPENING THE
CHASSIS MAY CAUSE SERIOUS INJURY OR DEATH.
THERE ARE NO USER REPLACEABLE OR
SERVICEABLE PARTS IN THIS UNIT.
WARNING!!!
Make sure to disconnect the power and ground cables before removing the equipment.
PoE Powered Chassis
On models with the PoE power feature, the RJ-45 Port A (the left port on the front of the
chassis) can be configured as a PoE Powered Device (PD). It accepts power from a
UTP-based Power Sourcing Equipment (PSE) and supports the following PoE standards:
Front View 1-Module Redundant Power Chassis
PoE RJ-45 (left most RJ-45 port)
•
IEEE 802.3af-2003 Alternative A – power over data wires
•
IEEE 802.3af-2003 Alternative B – power over spare wires
•
Pre-Standard Cisco PoE – power over spare wires, with reversed polarity (older
Cisco switches)
The following table summarizes the RJ-45 pinouts for each of the three PoE Standards
supported by this product.
IEEE
Standard
PSE
Voltage
Range (VDC)
Pin
1
Pin
2
Pin
3
Pin
4
Pin
5
Pin
6
Pin
7
Pin
8
802.3af
46.0 to 57.0
RX,
DC+
RX,
DC+
TX,
DC-
Spare Spare TX,
DC-
Spare Spare
802.3at
51.0 to 57.0
RX
RX
TX
DC+
DC+
TX
DC-
DC-
Pre-standard
Cisco
51.0 to 57.0
RX
RX
TX
DC-
DC-
TX
DC+
DC+
RJ-45 Port B does not support the PoE feature.
Page 9
WARNING REGARDING EARTHING GROUND:
o
o
o
o
This equipment shall be connected to the DC supply
system earthing electrode conductor or to a bonding
jumper from an earthing terminal bar or bus to which the
DC supply system earthing electrode is connected.
This equipment shall be located in the same immediate
area (such as adjacent cabinets) as any other equipment
that has a connection between the earthed conductor of
the same DC supply circuit and the earthing conductor,
and also the point of earthing of the DC system. The DC
system shall not be earthed elsewhere.
The DC supply source is to be located within the same
premises as this equipment.
There shall be no switching or disconnecting devices in
the earthed circuit conductor between the DC source and
the earthing electrode conductor.
Locate the DC circuit breaker of the external power source, and switch the circuit
breaker to the OFF position.
Prepare a power cable using a three conductor insulated wire (not supplied) with 12AWG
to 14AWG thickness. Cut the power cable to the length required.
Strip approximately 3/8 of an inch of insulation from the power cable wires.
Connect the ground wire to the grounding screws on the back of the module.
Connect the power cables to the module by fastening the stripped ends to the DC
power connector.
Rear View 1-Module Redundant Power Chassis
AC/DC with 2 Pin Terminal
WARNING: The positive lead of the power source must be connected to the
“+” terminal on the module and the negative lead of the power source to the “-“
terminal on the module as shown above.
WARNING: Note the wire colors used in making the positive, negative and ground
connections. Use the same color assignment for the connection at the circuit
breaker.
Connect the power wires to the circuit breaker and switch the circuit breaker ON. If any
module are installed, the Power LED will indicate the presence of power.
During the installation, ensure that the ground potentials are maintained throughout
the system connections. This includes but not limited to the power source ground and
any shielded cabling grounds.
