User Guide

NXC-VOL4 Volume Control Card
42
NXF CardFrame, NetLinx Control Cards, and NetModules
Pinouts, Signals, and Functions
NXC-VOL4 Specifications (Cont.)
Gain jumpers 1-4 • Unity
Maximum Input Level: +10dBm
• Pro level to Consumer level conversion (attenuation of +4dBu IN to -10dBu OUT)
Maximum Input Level: +10dBm
• Consumer level to Pro level conversion (gain of -10dBu IN to +4dBu OUT)
Maximum Input Level: +6dBm
Connections/wiring Two 10-pin 3.5 mm captive-screw terminals
Audio Specifications • Frequency response of 15 Hz - 25 KHz·
• THD less than .005% at nominal output level·
• S/N ratio greater than 100 dB (IHF A)·
• Crosstalk less than 80 dB·
• Logarithmic attenuation range of 95 dB
NXC-VOL4 Pinouts, Signals, and Functions
Pin Signal Balanced Function Unbalanced Function
Channel 1
1 GND Audio GND Audio GND
2 Input 1+ Audio IN Audio IN
3 Input 1- Audio IN Audio GND
4 Output 1+ Audio OUT Audio OUT
5 Output 1- Audio OUT no connection
Channel 2
6 GND Audio GND Audio GND
7 Input 2+ Audio IN Audio IN
8 Input 2- Audio IN Audio GND
9 Output 2+ Audio OUT Audio OUT
10 Output 2- Audio OUT no connection
Channel 3
11 GND Audio GND Audio GND
12 Input 3+ Audio IN Audio IN
13 Input 3- Audio IN Audio GND
14 Output 3+ Audio OUT Audio OUT
15 Output 3- Audio OUT no connection
Channel 4
16 GND Audio GND Audio GND
17 Input 4+ Audio IN Audio IN
18 Input 4- Audio IN Audio GND
19 Output 4+ Audio OUT Audio OUT
20 Output 4- Audio OUT no connection