Broadcast Electronics PNP 1000, Manual

Page: 5 / 52

21
AES/EBU WIRE.
An AES/EBU wire input is interfaced to the PNP 1000 at remote interface connector J2. Connect the AES/EBU
signal to J2–7 and J2–8. The AES/EBU signal is polarity independent. Therefore, the signal cables can be con-
nected to J2–7 and J2–8 in any combination. Refer to Figure 3.
AES/EBU OPTICAL.
An AES/EBU optical input is interfaced to the PNP 1000 at DIGITAL IN OPTICAL connector U1. Connect the
AES/EBU signal to DIGITAL IN OPTICAL connector U1. Refere to Figure 3.
S/PDIF.
An S/PDIF input is interfaced to the PNP 1000 at DIGITAL IN S/PDIF connector J2. A BNC–to–RCA phono
adapter is provided in the accessory kit. Install the adapter and connect the S/PDIF cable to DIGITAL IN S/PDIF
connector J2. Refer to Figure 3.
COMPOSITE.
CONNECTIONS –
A composite input is interfaced to the PNP 1000 at COMPOSITE IN connector J4. Connect the composite sig-
nal to COMPOSITE IN connector J4. Refer to Figure 3.
IMPEDANCE PROGRAMMING –
The composite input can be programmed for a 50 Ohm or 10 k Ohm impedance. The unit is shipped from the
factory configured for a 50 Ohm input impedance. Program header J6 as desired. Program header J6 to position
1–2 for 50 Ohms and positions 2–3 for 10k Ohms. Refere to Figure 7.
AUTOMATIC SWITCHING BETWEEN COMPOSITE AND ANALOG LEFT/RIGHT CHANNEL
PROGRAMMING –
The PNP 1000 is designed to automatically detect and select the composite input when a pilot is present. If no
pilot is detected, the analog left/right channel input will be selected. However, the unit can be programmed to
select: 1) only the composite input (J5 on positions 2–3) or 2) only the analog left/right channel input (J5 on re-
moved) or 3) autodetect (J5 on positions 1–2). The unit is shipped from the factory for automatic switching be-
tween the composite input and the analog left/right channel input. If the unit is to be configured for composite
only or left/right channel only operation, program header J5 as desired. Refer to Figure 7.
SCA.
The transmitter is equipped with a built–in 67 kHz SCA encoder. The encoder is controlled by SW2 on the control-
ler interface board and J23 on the DSP board.
CONNECTIONS –
SCA audio is interfaced to the PNP 1000 at connector J2. Connect: 1) SCA + to J2–12, 2) SCA – to J2–13, and
3) SCA shield to J2–14.
IMPEDANCE PROGRAMMING –
The SCA audio impedance is controlled by header J23 on the DSP circuit board. The unit can be programmed
for a 600 Ohm (J23 installed) or 10 k Ohm audio impedance (J23 removed). The unit is shipped from the factory
configured for a 600 Ohm audio impedance. Program the unit for the desired audio impedance. Refer to Figure
6.
ON/OFF CONTROL –
SCA ON/OFF operation is controlled by SW2 position 6 on the controller interface board. The unit is shipped
from the factory with the SCA operation disabled. Set SW2 position 6 to OFF to enable SCA operation or ON to
disable the SCA operation.