Serial Ports; Rear Panel Remote Port - Extron electronics CrossPoint 300 84 User Manual

Programmer's Guide
Programmer's Guide, cont'd

Serial Ports

The switcher has two serial ports that can be connected to a host device such as a
computer running the HyperTerminal utility, an RS-232 capable PDA, or a control
system. These ports make serial control of the switcher possible. The serial ports
are:
•
•
The default protocol for both ports is as follows:
• 9600 baud
• 1 stop bit
The ports can be configured to operate at the 9600, 19200, 38400, or 115200 baud
rate.

Rear panel Remote port

Figure 4-1 — Remote connector pin assignments
4-2 CrossPoint 300 Matrix Switchers • Programmer's Guide
The rear panel Remote (RS-232 or RS-422) port, a 9-pin D female connector
The front panel Configuration (RS-232) port, a 2.5 mm mini stereo jack
• no parity
• no flow control
These two ports are independent of one another. A front panel Configuration
port connection and a rear panel Remote port connection can both be active at
the same time.
The switcher can operate at 9600, 19200, 38400, or 115200 baud rates, but
Extron recommends leaving these ports at 9600 baud only.
Pin RS-232 Function
1 — Not used
2 TX Transmit data
3 RX Receive data
1
6
4 — Not used
5 Gnd Signal ground
9
5
6 — Not used
7 — Not used
8 — Not used
9 — Not used
The rear panel Remote port can support either RS-232 or RS-422 serial
communication protocol, and can operate at 9600, 19200, 38400, or 115200
baud rates. See "Selecting the rear panel Remote port protocol and baud rate"
in chapter 3, "Operation", to configure the rear panel Remote port from the
front panel.
• 8 data bits
RS-422 Function
— Not used
TX– Transmit data (–)
RX– Receive data (–)
— Not used
Gnd Signal ground
— Not used
RX+ Receive data (+)
TX+ Transmit data (+)
— Not used