Avaya MCC1 Installation And Upgrades page 832

Adjuncts and Peripherals
909A/B universal coupler
Figure 324: Typical 909A/B universal coupler
Figure notes
1 909A/B universal coupler
2 J1 8-pin modular jack
3 J2 8-pin modular jack
The 909A is the direct current (DC) version of the coupler, and cabinet power supplies -48 VDC power.
The 909B is the alternating current (AC) version, and power is supplied from a separate power supply
(such as the KS-22911L2).
The DIP switches on the unit set:
•
Protection/Paging selection
switch to C1 for all other applications.
•
Output attenuation (-9 or -15 dBm)
•
Output impedance (8 ohms, 1.5 k , and 50 k )
Protection/Paging switch is set to C2 and the coupler is supplying background music to a
customer-supplied paging amplifier.
The pinouts for J1, J2, and J3 are provided in
connecting music or paging equipment.
Table 45: J1 Pin Assignments (System Connections) 1 of 2
Pin Color
1 White-Orange
2 Orange
832
4 J3 7-pin modular jack
5 DIP switch location
—
For AUX trunk paging and malicious call trace, set to C2. Set the
—
Setting depends on output level of music source.
Table 45,
Designation Description
— Not Used
PG2/BZ2 Seizure control lead, connected to -48 VDC from the
system or from the 909A/B when the protection paging
switch is set to C2, or to -48 VDC on the 909A/B when
protection/paging switch is set to C1
909_brkt KLC 042296
—
This switch only requires setting if the
Table 46, and Table 47. Refer to these tables when
SI Installation and Upgrades
1 of 2
June 2004