Issue 2.3
37
PYXIS
System User Guide
5.1.4.3 PIN
OUT
Port 3
RS422
Multi-Drop
General
Switcher
1 GND
GND
2 RX- TX-
3 TX+
RX+
4 GND
GND
5 N/C
N/C
6 GND
GND
7 RX+
TX+
8 TX-
RX-
9 GND
GND
Table 13: Port 3 Pin Out
5.1.5 AES/LTC & RELAY
The third 9 Way on the rear panel is a mix of inputs to and outputs from the panel.
Linear Time Code
(LTC)
:
Input used only by the
Nucleus
controller.
Digital Audio
(AES)
:
Reference Input
Relay
(Alarms from the PSU & Fans)
:
Output controlled by relay on fan board.
AES/LTC & RELAYS
1 Ground
2
AES (balanced) +
3 Ground
4 LTC+
5 Relay
NC
6 Relay
NO
7
AES (balanced) -
8 Relay
CO
9 LTC-
Table 14: AES/LTC & Relay Port Pin Out
The relay signals are controlled via the fan module and should be set up to match your frame
configuration so false alarms are not triggered. See section 3.1.7.2 for details of switch settings.