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Model 4123 Automatic Sensing A/B Switch

Model 4123 Automatic Sensing Switch monitors data activity on both A and B. If activity on the currently connected port is lost, and if the other port has established valid activity, the Model 4123 automatically switches to that port with activity.

Manufacturer - Electro Standards Laboratories
Model # - 4123
SKU - 305123
Submitted By - Electro Standards Laboratories (Manufacturer)
Country - United States
Category - Business : Network Switches

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Automatic Sensing A/B Switch with Remote Port


Data Connectors :   A, B, Common: DB25 (F)
Pushbutton Control :   Selects Port A, B, Override
Remote Control :   (1) DB9 (F) accepts RS232 Serial ASCII
Red LED Display :   Position, Power, Auto-sensing Mode
Power :   UL approved 115VAC/60Hz wall mount


The PathWay® Model 4123 Automatic Sensing Network Switch with Remote Serial control provides a powerful and versatile tool to manage switching requirements. The system affords local and remote access functionality. Remote access can be accomplished by RS-232 commands sent via the Remote Serial Port. Users can remotely monitor status and control switch functions.

The Model 4123 AB switch allows a device connected to the Common port to connect through to the port with activity either on A or B. It maintains the connection with the currently connected port as long as there is activity on it. The unit monitors data activity on both port A and B. If activity on the currently connected port is lost, and if the other port has established valid activity, the unit automatically switches to that port with activity. It will stay connected to the current port if neither of the ports has activity. Then if data activity is detected on a port, the unit will automatically switch to that port.

The Model 4123 network switch has a Remote RS232 serial port that permits off-site monitoring and/or management of the switch. The off-site operator can monitor the operation mode, auto-sensing of A/B, the switch position, change the mode or switch position, and lockout the front panel pushbutton operation.

Model 4123 Features Include:
1) The switch ports are transparent to all data.
2) All pins of the DB25 interface are switched.
3) All switched signals are passed via copper contact relays that maintain their position and continuity even in the event of a power loss or failure.
4) Front panel pushbutton control or Remote ASCII Command access thru the serial port.
5) Front panel LED's display the current switch position.
6) User can override automatic sensing operation from the front panel (or throughremote command) and force the unit to operate as an A/B switch.

Electro Standards manufactures a wide range of RS232 data network switches.

The Model 4123 is available with an optional wide range power supply, 100VAC/240VAC, 50Hz/60Hz, making it ideal for International applications.


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