Panasonic KX-TD500 Installation Manual page 58

2.2.3 Expansion to 3-Shelf System
<Power Supply Cable>
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2-22 Installation
1. Plug the power supply cable (on the Expansion Shelf 2) into the
power supply cable connector ("AC OUT 3").
Power
supply cable D IG
IT A
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E R
H Y
B R
ID
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S TE
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O FF
LI N
P O E
W E A LA
R R M
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O F
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Top cover
Expansion shelf 2
Expansion shelf 1
Basic shelf
Base shelf