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Connecting Telephones and Adjunct Systems
Installation and Wiring Telephones and Power Supplies
322 Installation and Upgrades for G700 and S8300
December 2003
The 1152A1 PDU then runs through its Power On Self Test (POST), which takes less than 10 seconds.
During the test, all the ports on the unit are disabled and the LEDs light up. For more information on the
test, refer to the user’s guide that comes with the unit.
Connect the Cables
All of the ports on the front of the 1152A1 PDU are configured as data route-through ports for all data
wires (pins 1, 2, 3 and 6).
Use a standard CAT5, CAT6 or CAT6e straight-through Ethernet cable (not supplied), including all 8
wires (4 pairs) as shown in Connecting cables to telephones and other end devices
on page 322.
Figure 18: Connecting telephones and other end devices to the 1152A1 PDU
For Data-In ports connect the Ethernet cable leading from the Ethernet Switch/Hub to the Data port. For
Data & Power Out ports connect the Ethernet cable leading to the telephone or other end device to the
corresponding Data & Power port.
NOTE:
Be certain to connect correspondingly numbered Data and Data & Power ports.
Connecting cables to telephones and other end devices
The 1152A1 PDU contains line-sensing capabilities that enable it to send power only to end devices
designed to receive power from the LAN. These end devices, termed Power over LAN Enabled, receive
power once they are connected to the 1152A1 PDU.
To safeguard devices that are not enabled, the 1152A1 PDU detects devices that are not enabled so does
not send power. Note that data continues to flow via the Ethernet cable regardless of the status of the end
device.
AC
Console
12
3456
13 14
15 16 17 18
19 20
21 22 23 24
78
9101112
1152A1 Power
Distribution Unit
Data &
Power
Data
48Vdc
End Device
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
RJ-45 IN RJ-45 OUT
Ethernet
Switch/Hub
RJ-45
RJ-45
data
data
data
DC +
data
DC -
data
data
data
data
spare
spare
spare
spare
Data In
Data & Power Out
DC +
DC -
1152A1 Power Distribution Unit