
10
Redbox RB-DMX4 User Handbook
REAR P
ANEL C
ONNEC
TORS
REAR PANEL CONNECTORS
5
AES/EBU Sync Input
The digital input XLR 3 pin socket has an impedance of 110Ω. It has the following
connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
The signals on this connector meet the IEC 60968 specification
Word Clock Input
The TTL Word Clock synchronisation input has an impedance of 50Ω and uses a BNC
connector.
Video Sync Input
The video sync input is presetned as a 75Ω BNC connector. See page vi for more
information on the video sync boards available.
Serial RS232 Connector
The 9-way ‘D’ type socket connector carries a standard RS232 interface and allows direct
connection to a serial port on a PC via a pin-to-pin cable. The pin assignments are as
follows:
Pin 2: Transmit data
Pin 3: Receive data
Pin 5: Ground
All other pins are unused.
Remotes Connector
The remotes connector is a 15-way ‘D’ type socket that is currently reserved for future
development. Displayed below are the pin connections and a description of what is
available:
Pin 1 – Relay 1 Normally Open
Pin 2 – Relay 1 Normally Closed
Pin 3 – Relay 2 Normally Open
Pin 4 – Relay 2 Normally Closed
Pin 5 – Make to Digital Ground Input
Pin 6 – Internal Open Collector to Digital Ground Output
Pin 7 – Make to Digital Ground Input
Pin 8 – Digital Ground
Pin 9 – Relay 1 Common
Pin 10 – Make to Digital Ground Input
Pin 11 – Relay 2 Common
Pin 12 – 5 V Supply Maximum 200 mA
Pin 13 – Internal Open Collector to Digital Ground Output
Pin 14 – Make to Digital Ground Input
Pin 15 – Internal Open Collector to Digital Ground Output