Installation and wiring of telephones and power supplies
Issue 7 January 2005
391
Local and Phantom Power
An attendant console’s maximum distance from the system is limited.
See
Table 19: Attendant Console Cabling Distances
on page 391.
1152A1 mid-span power distribution unit
The 1152A1 Mid-Span Power Distribution Unit (PDU) is an Ethernet power supply that provides
power to up to 24 46xx-series IP telephones or wireless LAN (WLAN) access points. This unit is
used with a 10/100BaseTx standard Ethernet network over a standard TIA/EIA-568 Category 5,
6 or 6e cabling plant. The 1152A1 meets the current requirements of the IEEE802.3af standard
for resistive detection.
The 1152A1 PDU complies with the Underwriters Laboratories Inc. (UL) standard UL 1950,
second edition.
For safety instructions, see
Important 1152A1 PDU Safety Instructions
on page 392. For
installation instructions, see
Connecting the 1152A1 PDU cables
on page 393.
Table 19: Attendant Console Cabling Distances
Enhanced Attendant
Console (302D)
24 AWG Wire (0.26
mm
2
)
26 AWG Wire (0.14
mm
2
)
Feet Meters
Feet Meters
With Selector Console
Phantom powered
800
244
500
152
Locally powered
5000
1524
3400
1037
Without Selector
Console
Phantom powered
1400
427
900
274
Locally powered
5000
1524
3400
1037
Table 20: 1152A1 PDU UL 1950 Compliance
Complies
UL 1950
Approved
CSA C22.2 No.950 Std.
Approved
CE Regulatory
Compliance
Approved
EN 60950
Approved
TUV EN 60950