Lucent Technologies DEFINITY Installation For Adjuncts And Peripherals page 24

DEFINITY ECS Release 8.2
Installation for Adjuncts and Peripherals 555-233-116
1 909A/B Universal Coupler
1. 909A/B universal coupler
2. J1 8-Pin modular jack
3. J2 8-Pin modular jack
Figure 1. Typical 909A/B Universal Coupler
The 909A is the DC version of the coupler, and cabinet power supplies -48 VDC
power. The 909B is the AC-powered 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
trace, set to C2. Set the switch to C1 for all other applications.
Output attenuation (-9 or -15 dBm)
music source.
Output impedance (8 ohms, 1.5 kΩ, and 50 kΩ)
requires setting if the 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
Table 3. Refer to these tables when connecting music or paging equipment.
909_brkt KLC 042296
4. J3 7-Pin modular jack
5. DIP switch location
—
For AUX trunk paging and malicious call
—
Setting depends on output level of
Table 1, Table
Issue 1
April 2000
—
This switch only
2, and
2