346 Modular Bulk Power Supply; Table 2-C Individual Power Supply Adjunct And Distance Limitations - AT&T 75 Wiring Manual

Z100-TYPE HARDWARE
TABLE 2-C. Individual Power Supply Adjunct and Distance Limitations
Power Unit
2012D Transformer
(18-volt ac) With
248B Adapter
KS-22911, L1 Power
Supply (48-volt dc)
329A Power Supply
(-48 volt dc)
INDIVIDUAL POWER SUPPLY ORDERING INFORMATION
Bulk Power Supply

346 Modular Bulk Power Supply

The 346 modular bulk power supply consists of a 346A1 power panel and up to three 346A
power units (see Figure 2-19). The panel has three 2-ampere resettable circuit breakers, one
for each 346A power unit (see Figure 2-20). Power panels are used with one, two, or three
power units connected.
A standard 5-foot (1.52-m) double-ended (male, female) power cord connects the 346A1 power
panel to an ac outlet. Service to the ac outlet must be a dedicated (nonswitched) 20-ampere
line. A maximum of four power panels can be connected to the 20-ampere line.
Note: The city of Chicago and Cook County Illinois electrical codes require the use of a
fused ac power cord POP-6/217 by JDS Products and a metallic 346B1 power panel.
Each 346A power unit provides four power jacks. A slide switch is located between the top
two and bottom two jacks. When the slide switch is in the down position, 10 watts of power
are provided at the jacks above and below the switch.
When the slide switch is in the up position, the power from the jack above the switch and
below the switch are combined. This provides 20 watts of power at the jack above the
switch. The jack below the switch will have no power.
2-26
Adjunct Limits
One speakerphone
or headset only
One digital module plus
speakerphone or headset
One digital module plus
speakerphone or headset
Two digital modules plus
speakerphone or headset
Three digital modules plus
speakerphone or headset
Description
2012D Transformer
248B Adapter
KS-22911, L1 Power Unit
329A Power Unit
Distance
Wire
Feet (Meters)
Gauge
24 150 (45.7)
24 300 (91.4)
24 500 (152.4)
24 350 (106.7)
250 (76.2)
24
Comcode
102 600 517
102 802 103
403 242 639
103 873 998