Panasonic KX-T336 System Reference Manual page 36

2.00 Expansion Shelf
Expansion Shelf is provided optionally.
Up to two Expansion Shelves (1 and 2) can be
installed on the Basic Shelf to enlarge the ability
of the system.
Each Expansion Shelf contains its own power
supply and 15 mounting spaces for any optional
card required for system expansion.
Expansion Shelf is installed on top of the basic
shelf.
Free Slot can be equipped with the following
optional service cards.
a. Loop start central office trunk (LCOT) Card
b. Loop start central office trunk with Pay-
Tone Detection (PCOT) Card
c. Loop start central office trunk with Polarity
Reversal Detection (RCOT) Card
d. Ground start central office trunk (GCOT)
Card
e. Hybrid line circuit (HLC) Card
f. Proprietary ITS Line circuit (PLC) Card
g. Single line telephone line circuit (SLC)
Card
h. Single line telephone line circuit with
Message Waiting (MSLC) Card
i. Direct inward dialing trunk (DID) Card
j. Both-way direct inward dialing access
(DID-W) Card
Expansion Shelf consists of the following.
No.
1 POWER-for Power Unit
2 FS1 to 15 (Free Slot)
Construction of Expansion Shelf (1 and 2).
P F F F
O S S S
W 1 2 3
E
R
k. MFC direct inward dialing access (DID-
l. Off premise extension trunk (OPX) Card
m. Doorphone circuit (DPH) Card
n. Automatic Gain control (AGC) Card
o. Direct inward system access (DISA) Card
p. Remote circuit (RMT) Card
q. Attendant console Line circuit (ATLC) Card
r. E&M Card
s. T-1 Digital Trunk Card
t. E-1 Digital Trunk Card
1-E-2
Name
- for optional service card
F F F F F F
S S S S S S
4 5 6 7 8 9
MFC) Card
(Free slot 1, 5 or 9 only)
(Free slot 1, 5 or 9 only)
Number
1
15
F F F F F F
S S S S S S
10 11 12 13 14 15