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Chapter 10: Configurations
156
Up to three P2-UMT832S units (Stacking Units) can be connected to
one P2-UMT832M unit (Main Unit).
Only one P2-UMT1664S unit (Stacking Unit) can be connected to
one P2-1664M unit (Main Unit).
A maximum of 128 channel ports (Main Unit + Stacking Units) is
permitted. When a P2-UMT1664M unit acts as the Main Unit, only
one P2-UMT1664S Stacking Unit can be in daisy chain with it. When
a P2-UMT832M unit acts as the Main Unit, up to three P2-UMT832S
Stacking Units can be in the daisy chain.
You cannot mix unlike configurations of Main Units and Stacking
Units. For example, you cannot use a P2-UMT832S Stacking Unit
with a UMT1664 Main Unit and vice versa.
These cannot be used as Stacking Units: P2-UMT1664M,
P2-UMT832M, UMT1664, UMT832 (Paragon I with hardware version
HW3).
Important: If you power off a Stacking Unit when it remains
CONNECTED to a Main Unit, the channel colors on the OSUI
Selection Menu becomes abnormal . To avoid this problem, you
must disconnect the Stacking Unit from the Main Unit before
powering it off. See
Note for Turning Off the Stacking Unit
(on page
31) for additional information.
Standard Stacked Configurations
This section shows both of supported and unsupported connection
configurations. In the diagrams of this section, two letters “I” and “O”
represent the following meanings:
I
Input
O
Output
Single Base with Stacking
Example A: Non-blocked System—P2-UMT1664M
Standard configuration—any user can access any channel port in the
system.