User guide

18 EtherneTV Media Distribution System
Serial Port
Using serial port passthrough, STBs can provide full duplex, end-to-end transparent
passthrough of user data from an STB to a VBrick, or to other networked devices. The STB
has one serial port that can be used for passthrough. The serial port operates at its configured
baud rate (e.g. 115.2 to 300K bps). Some common applications include remote control of a
camera (pan-tilt-zoom), remote control of security doors, low speed data transport, or data
collaboration between PCs.
Security
Passthrough:
Responder
If enabled, will be a Passthrough responder; else port will host a serial
shell fixed at (9600, 8N1).
Passthrough: Baud
Rate
Choose the Baud Rate for serial port when Passthrough is active.
Default = 9600.
Passthrough: Stop
Bits
Choose the number of Stop Bits for serial port when Passthrough is
active. Default = 1.
Passthrough: Parity Choose the Parity for serial port when Passthrough is active. Default
= None.
Passthrough: RTS
Control
Choose the RTS control method for the serial port when passthrough
is active. Used to initiate an action when a signal is detected. See Serial
Port Pinouts on page 38 for more information.
• Force-Off (default) – Signal always off.
• Force-On – Signal always on.
• Automatic – Set to on when serial port passthrough is active; set to
off when not active.
Passthrough: DTR
Control
Choose the DTR control method for the serial port when
passthrough is active. Used to initiate an action when a signal is
detected. See Serial Port Pinouts
on page 38 for more information.
• Force-Off (default) – Signal always off.
• Force-On – Signal always on.
• Automatic – Set to on when serial port passthrough is active; set to
off when not active.
Root Password Changes the password used to log into the STB when the username
is
root
User Password Changes the password used to log into the STB when the username
is
noroot
Enable FTP Server Check box to enable FTP server.
Enable Telnet Server Check box to enable Telnet server.
Enable HTTP Server Check box to enable HTTP server.
Enable Browsing Check this parameter to allow access to external web pages and
allow use of the STB as a web browser.