Instruction manual

Wiring and Device Connections
24
Enova DVX-2150HD/2155HD All-in-One Presentation Switcher Operation/Reference Guide
Rear Panel Control and Power
The following sub-sections describe each component on the rear panel of the DVX. Refer to FIG. 4 on page 8 for the
component layout of the rear panel.
RS232/422/485 Serial Port Connectors (PORTS 1-3)
The RS232/422/485 serial device ports (FIG. 36) are used for A/V sources and displays. These ports support most
standard RS-232, RS-422, and RS-485 communication protocols for data transmission.
These connectors feature the following specifications:
XON/XOFF (transmit on/transmit off)
CTS/RTS (clear to send/ready to send)
300-115,200 baud
FIG. 37 provides wiring specifications for the RS-232/422/485 connectors.
FIG. 36 RS-232/422/485 Device Port connectors
FIG. 37 RS-232/422/485 (DB9 - male) connector pinouts
RS-232/422/485 Port Wiring Specifications
Pin Signal Function RS-232 RS-422 RS-485
1 RX- Receive data X X (strap to pin 9)
2 RXD Receive data X
3 TXD Transmit data X
4 TX+ Transmit data X X (strap to pin 6)
5 GND Signal ground X X X
6 RX+ Receive data X X (strap to pin 4)
7 RTS Request to send X
8 CTS Clear to send X
9 TX- Transmit data X X (strap to pin 1)
DB9 Serial Port pinouts (male connector)
Pin 2: RX signal
Pin 3: TX signal
Pin 5: GND
Pin 7: RTS
Pin 8: CTS
RS-232
Pin 1: RX -
Pin 4: TX +
Pin 5: GND
Pin 6: RX +
Pin 9: TX -
RS-422
Pin 1: A (strap to 9)
Pin 4: B (strap to 6)
Pin 5: GND
Pin 6: B (strap to 4)
Pin 9: A (strap to 1)
RS-485
12345
6789
When wiring the connections, do not use pre-made 9-wire cable or connect the wire
in the cable to any connection that will not be used by the DB9 serial port. Only use
wiring that connects the necessary pins.