Simplex XSIG Installation Instructions Manual page 3

Expansion Signal (XSIG) Card illustration
Figure 1 is an illustration of the Expansion Signal (XSIG) card.
XSIG Card receives power and communications from PDI
The XSIG card is a 4100 Comm slave according to the 4100 slave architecture. The card plugs onto the Power Distribution Interface (PDI) that supplies
card power and 4100 Comm communications.
XSIG Card LEDs
LEDs on the XSIG card are used to indicate card status. See Table 1.
*LED No. Use
2 On when the amplifier is not communicating with
the system CPU
3
Status of audio NAC 1
4 NAC1 routing relay status = routed to Input 2 (audio
use only)
5
Status of audio NAC 3
6 NAC2 routing relay status = routed to Input 2 (audio
use only)
7
Status of audio NAC 2
8 NAC3 routing relay status = routed to Input 2 (audio
use only)
*LED1 is not provided on the XSIG card.
page 3
Expansion Signal (XSIG) Card Installation Instructions
Figure 1: XSIG Card
Table 1: Status LEDs
Interpretation
ON Steadily during comm loss; flashing during firmware failure.
ON Steadily when NAC is ON;
ON Steadily when NAC detects trouble.
ON Steadily when NAC1 is routed to Input 2.
ON Steadily when NAC is ON;
ON Steadily when NAC detects trouble.
ON Steadily when NAC2 is routed to Input 2.
ON Steadily when NAC is ON;
ON Steadily when NAC detects trouble.
ON Steadily when NAC3 is routed to Input 2.
Color
Yellow
Yellow
Green
Yellow
Green
Yellow
Green
579-516 Rev. J