Analog Service Unit; Peripheral Unit; Figure 31. Universal Asu; Figure 32. Asu - Mitel 3300 Technician's Handbook

Technician's Handbook
CEPT Port DIP Switch Settings
Table 62 below shows the settings for the CEPT port DIP
switch. for the BRI NSU

Table 62. CEPT Port DIP Switch Settings

Switch Function

Analog Service Unit

The Analog Services Unit (ASU) provides connectivity for
analog trunks and telephones (POTS and On-Premise
Station, ONS). There are two variants of 3300 ASUs:
•
•

Peripheral Unit

Each Peripheral Unit contains peripheral interface cards
providing ONS and/or DNI ports.
244
This is site-dependant. Tx is usually,
Note:
grounded, but this depends if the remote Rx
connection is grounded or not.
1 Tx Ground
2 Rx Ground Up: Ground
ASU
Universal ASU

Figure 31. Universal ASU

Figure 32. ASU

Settings Notes
Up: Ground Not required for
RJ-45 connector.
Down: Floating
Not required for
RJ-45 connector
Down: Floating