Paging (Universal Asu Only) - Mitel 3300 ICP Hardware Technical Reference Manual

C 3
HAPTER

Paging (Universal ASU only)

The paging interface provides two paging ports.
Each paging port is a transformer-coupled interface providing:
600 ohm input impedance
•
Full duplex capability
•
A complete 2/4 wire hybrid interface
•
A balance impedance set at 600 ohms.
•
The two overhead paging outputs, in combination with their relay contacts, support two paging zones.
ASU Paging Zones vs. Audio Circuit Numbers and Relay Positions
Table 3.3:
ASU Paging Zone Number
1
2
3
4
0
Paging is accomplished by one of two methods:
Zone control via outpulsed DTMF digits
•
E&M trunk emulation using contact-closure control.
•
The Paging Connector Pin Allocation is shown in the following table.
Paging Connector Pin Allocation
Table 3.4:
Pin
1
2
3
4
5
6
7
8
Paging Audio Circuit Number
1
1
2
2
1 & 2
signal
Tip
Ring
Common contact
Tip
Ring
Normally open contact
Common contact
Normally open contact
A S
NALOG
S U
ERVICES NITS AND
Paging Circuit's Relay
Position
Off
On
Off
On
Off & Off
Zone
00
00
00
01
01
00
01
01
U
ERVICES NITS
G
ATEWAYS
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