Yealink VC400 Administrator's Guide

System Management
245
Using the API with a Serial Connection
You can use the API with a serial connection to control Yealink video conferencing system. The
USB port on the Yealink video conferencing system can be connected to the serial port on the
control system through a USB to RS-232 cable.
You must connect and configure the control system and the video conferencing system for
serial communication.
Serial Connection parameters are described below.
Parameter
Description
Configuration Method
Baud Rate
Configures the baud rate.
Available baud rates are:
 2400
 4800
 9600
 19200
 38400
 115200
Default: 115200
Note: It must be the same rate for
both devices.
Web User Interface
Data Bits
Configures the data bits.
Available data bits are:
 7
 8
Default: 8
Note: It must be the same data bits
for both devices.
Web User Interface
Parity
Configures the parity.
Available parity are:
 None
 Odd
 Even
 Space
Default: Space
Note: It must be the same parity for
Web User Interface

Yealink VC400 Specifications

General

Optical zoom	18 x
White balance	Auto, Indoor, Outdoor
Focus adjustment	Auto
Video codecs	H.264, H.264, H.263
Supported video modes	1080p
Supported graphics resolutions	352 x 288, 704 x 576, 1280 x 720 (HD 720), 1920 x 1080 (HD 1080)
Voice codecs	G.711, G.711a, G.722
Line-in	Yes
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
ITU-supported standards	H.323
Ethernet LAN data rates	10, 100, 1000 Mbit/s
AC input voltage	100-240 V
Power consumption (max)	30 W

Weight and Dimensions

Depth	183 mm
Width	330 mm
Height	40 mm