Network Technologies SM-nXm-AV-LCD RS232 Control, Remote Connection, Baud Rate, Unit Address

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RS232 Control

Remote Connection

The RS232 Interface is designed to control the switch via serial (RS232) daisy chain connection from any host computer or other controller with an RS232 communications port. There is, however, a restriction that must be followed:

A program must be used that will send an entire command line all at once, not character by character. (The HyperTerminal program in WINDOWS cannot be used, as it sends each character one at a time.)

The pin outs for the DB-9 connector on the unit are as follows:

RS232 INPUT (DB-9 FEMALE)

PIN

SIGNAL

FUNCTION

1

none

no connection

2

TXD

Transmit Data (RXD at host)

3

RXD

Receive Data (TXD at host)

4

DTR

Data Terminal Ready

5

GND

Signal Ground

6

DSR

Data Set Ready

7

RTS

Request to Send

8

CTS

Clear to Send

9

none

no connection

On the DB-9 female connector, pins 4 (DTR) and 6 (DSR) are shorted and pins 7 (RTS) and 8 (CTS) are shorted. Therefore, host handshaking is bypassed and TXD and RXD are the only active signals. A straight through DB-9 cable (not null modem) will work for most CPUs. To daisy chain multiple units, use NTI Matrix-Y-1 "Y" cables, except for the last unit connected. (see Fig 3).

Baud Rate

The unit powers up with a default baud rate of 9600 and a fixed data protocol of 8 data bits, no parity and 1 stop bit. The baud rate is selectable through the "Baud Rate Menu". A data protocol of 8 data bits, no parity, and 1 stop bit is used in the daisy chain communication.

Unit Address

To allow multiple units to be controlled from a single host port, the RS232 control interface is designed to allow "daisy chaining" up to 15 units using the NTI Matrix-Y-1 "Y" cables. By setting the appropriate unit address with the keypad, each unit can be given a unique address (1-15). Then the unit will only respond to commands on the bus if its address is embedded in the command. (See illustration below.)

RS232

Matrix-Y-1

Matrix-Y-1

Matrix-Y-1

Host Serial Port

 

 

 

CPU

 

 

 

RS232

 

RS232

RS232

NTI

 

NTI

NTI

SWITCH

 

SWITCH

SWITCH

First Unit

Second Unit

Last Unit

Figure 3- RS232 Connections for Daisy-chain

8

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Contents NTI Warranty Information Table of Contents Introduction SpecificationsVINT-5B-6 Ordering InformationCables Basic OperationFeatures and Functions FeaturesandfunctionsJack InstallationJack Control OptionsMaking Connections Front Panel Keypad ControlSerial Menu Volume ControlMemory Functions Unit Address RS232 ControlRemote Connection Baud RateRC Restore Matrix Connections From Memory Bank Command ProtocolRS-232 Command Protocol Quick Reference RS-232 Command Protocol Full SpecificationRU Read Unit Size CB Change Baud Rate For All SwitchesRS Internal Reset RV Read NTI Version StringAO Audio Read Connection For Output/User Port RO Video Read Connection For Output/User PortAS Audio Connect One Output/User Port To Input/CPU Port AA Audio Connect All Outputs/Users Ports To Input/CPU PortMain Options AV Set Volume Level For Output/User PortAR Read Mute, Volume For Output/User Port RS232 Interface Test ProgramSET Options Matrix Switchers Control Program For Windows 9X, NT,Infrared Control Optional Battery ReplacementSpecifications TroubleshootingGrounding DDC Support OptionalRack Mounting Instructions

SM-nXm-AV-LCD specifications

Network Technologies SM-nXm-AV-LCD is a cutting-edge solution that seamlessly integrates various multimedia components, making it an essential tool for modern audiovisual applications. This device is designed to cater to businesses, broadcast environments, and any organization that requires efficient management and distribution of audio and video signals across extensive networks.

One of the key features of the SM-nXm-AV-LCD is its ability to support high-resolution video formats, including 4K and beyond. This ensures that users can transmit crystal-clear images without compromising quality. The device incorporates advanced video processing technologies that minimize latency and enhance the overall viewing experience. This means that whether it's for presentations, live events, or video conferencing, the visuals remain sharp and dynamic.

Another significant technological aspect of the SM-nXm-AV-LCD is its versatility in handling a variety of input and output formats. The device typically includes HDMI, DisplayPort, and VGA connections, enabling it to accommodate numerous devices, from computers and cameras to displays and projectors. This flexibility makes it easy to integrate into existing setups without requiring extensive modifications.

The SM-nXm-AV-LCD is built with network capabilities that support both wired and wireless connectivity options. This allows for easy integration into existing network infrastructures, facilitating remote access and control. Users can manage settings and make adjustments from anywhere, streamlining operations and improving efficacy.

The user interface of the SM-nXm-AV-LCD is designed for simplicity and intuitiveness. A built-in LCD screen provides real-time feedback on status, input selections, and other critical information, enabling operators to monitor performance effortlessly.

Moreover, the device features robust security measures to protect against unauthorized access and ensure secure transmissions of data. With encryption protocols and secure login features, organizations can trust that their audiovisual content is safeguarded.

Power efficiency is also a noteworthy attribute of the SM-nXm-AV-LCD. It is designed to consume minimal energy while delivering peak performance, aligning with the growing emphasis on sustainable technologies in today's tech landscape.

In summary, Network Technologies SM-nXm-AV-LCD stands out in the market due to its high-resolution support, flexible connectivity options, and user-friendly design. With advanced processing capabilities and secure networking, it is a reliable choice for organizations looking to enhance their audiovisual setups. Its combination of performance, versatility, and security makes it an indispensable tool in the modern digital landscape.
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