15
Figure 3-1. 4 x 20 Network Application.
In the above example, IST devices on the first and the second Phone Line
Manager will have equal outbound access to the four telephone lines since
four network links have been provided. For inbound calls on the
incoming/outgoing Phone Line Manager, the four telephone lines will ring
the first four IST ports on the first Phone Line Manager. All other IST ports
(5-12) on the first Phone Line Manager and all IST ports (1-12) on the
second Phone Line Manager are for outbound calling only.
Example 2: Providing Additional Line Ports and Device Ports
If the quantity of telephone lines and IST devices that are required for your
application exceed the capacity of one Phone Line Manager, then you can
network two or more units together. In this application, to increase the Phone
Line Manager capacity to handle the quantity of lines and device ports you
need, connect one half of the telephone lines to the first Phone Line
Manager and the other half of the telephone lines to the the second Phone
Line Manager. Leave at least one Line port and one IST port open on each
Phone Line Manager for networking. By connecting Line Port #1 on the first
Phone Line Manager to the last IST port on the second Phone Line Manager,
and by connecting Line Port #1 on the second Phone Line Manager to the
last IST port on the first Phone Line Manager, an outgoing call from any IST
port can access the telephone lines on any networked Phone Line Manager.
Networking two Phone Line Managers together in this manner will allow an
IST device to search and gain access to an available telephone line connected
4 x 12 LineShare (1st)
4 x 12 LineShare (2nd)
4 Telephone
Lines
8 IST
Devices
12 IST
Devices
Network
Links
4 x 12 Phone Line Manager (1st)
4 x 12 Phone Line Manager (2nd)
