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3.1 Connecting the Telephone Lines and IST Devices
In the following description and throughout this manual, the first number
listed refers to the LINE and IST Ports available on the Plug and Play
Phone Line Manager XL 3 x 6. The second and third numbers (listed in
parentheses) refers to the LINE and IST Ports available on the Plug and
Play Phone Line Manager XL 4 x 12 and the Plug and Play Phone Line
Manager XL 8 x 24. The 12 x 36 is actually a 4 x 12 and a 8 x 24 Phone
Line Manager. The 16 x 48 is actually two 8 x 24 units. You can use the 12
x 36 and 16 x 48 as two separate Phone Line Manager units, or network
them together as explained in Section 3.1.1.
Connect your telephone lines to the LINE Ports numbered 1 through 3 (4 or
8), starting with LINE Port 1. If connecting fewer than 3 (4 or 8) lines, leave
the higher numbered LINE Ports unconnected. Similarly, connect the RJ-11
modular line cords from your IST devices to the desired IST Ports, starting
with IST Port 1. If connecting fewer than 6 (12 or 24) IST devices, leave the
higher-numbered IST Ports unconnected. See the information on the next
page for additional information concerning the connection of the Line Ports
and Incoming IST Ports.
When connecting telephone lines and IST devices to the Plug and Play Phone
Line Manager XL, the devices that will receive incoming calls must be
connected to the Incoming IST Ports as listed in the chart below. The highest-
priority incoming-call device should be connected to IST Port 1, and its
associated telephone line should be connected to LINE Port 1. The next-
highest-priority incoming-call device should be connected to IST Port 2 and
its associated telephone line should be connected to LINE Port 2, etc.
Incoming calls to the first line ports of the Plug and Play Phone Line Manager
XL are passed directly through to the first IST Ports; therefore, the number of
IST devices that can accept incoming calls is equal to the number of
telephone lines connected to the Phone Line Manager XL.
3 x 6 Model 4 x 12 Model
LINE Port IST Port
1
2
3
Incoming IST Ports
LINE Port IST Port
1
1
2
2
3
3
4
NOTE
8 x 16 Model
1
2
3
4
CHAPTER 3: Installation
LINE Port IST Port
1
1
2
2
3
3
4
4
5
13
6
14
7
15
8
16
13
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