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Catalog # 307142 - Model 7142 2-Channel RJ45 A/B Switch, Automatic Fallback for PRI/ISDN

    2-Channel RJ45 A/B Switch, Auto Fallback,2-Channel RJ45 A/B Switch, Auto Fallback,2-Channel RJ45 A/B Switch, Auto Fallback,
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    • 2-Channel RJ45 A/B Switch, Auto Fallback,
    • 2-Channel RJ45 A/B Switch, Auto Fallback,
    • 2-Channel RJ45 A/B Switch, Auto Fallback,
Base Price:
Catalog No: 307142
Model No: 7142
Product Type:Switches: Copper
Cable Type/Port Connector:RJ45
Channels per Switch Chassis:2
Electronic Switches/Power Required:PathWay® Copper
Channel Control:Independent Channel Control
Remote Control:Auto Fallback
Auto Fallback:AutoSense, Monitors Port A
Local Control:Pushbutton


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Products shall be shipped F.O.B. Electro Standards' facility. Title to and risk of loss or damage to the products shall pass to you upon Electro Standards delivery of the products to a carrier for shipment. Title to software will remain with the applicable licensor. Electro Standards' prices do not include shipping and handling charges. Electro Standards reserves the right to use its own discretion in the manner and routing of shipments. Electro Standards shall be permitted to deliver products in separate lots.

Shipping Return Policy

  • To return an item, contact Electro Standards at 401-943-1164 to obtain a Return Material Authorization (RMA) number. RMA numbers are valid for 30 days after the date of the shipment and cannot be extended or re-issued. We are unable to accept returns without an RMA number.
  • All returns except those of defective product are subject to a 15% restocking fee, and additional charges for handling or freight are refunded only in cases of defective products.
  • Return freight must be shipped prepaid. We recommend that you insure the package as you are responsible for risk of loss on all returned packages. We recommend that all cartons are properly packed as Electro Standards is not responsible for product damaged en route. We do not issue call tags for product returns.
  • Returned product must be clean, undamaged, and complete with all manuals, accessories, documents and packaging. The items must be in a resalable condition.
  • The product must have with it a copy of the original invoice or packing slip and the appropriate RMA paperwork.
  • If your item is not working properly, please contact Electro Standards at 401-943-1164 for help in trouble-shooting your application.
  • If the product is defective, Electro Standards will repair or replace that item (at our discretion) upon receipt and evaluation of the original product.
  • Electro Standards reserves the right to authorize product returns after 30 days from the invoice date in some cases. If the product is accepted after 30 days, credit will be issued toward future pruchases only and some additional restocking charges may be applied.
  • All credits from RMAs must be used within one calendar year of issue.

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PathWay® Model 7142 Dual Channel RJ45 A/B Switch with Automatic Fallback for PRI/ISDN Application

  • Automatically Switches to Backup Line when Primary Line Fails.

  • Switches all 8 pins.

  • Allows compatibility with All RJ45 interfaces.


  • PORT CONNECTORS: (3) RJ45 female connectors labeled A, B, and COMMON for each of two channels.
  • FRONT PANEL CONTROLS: (2) Manual pushbuttons, one for each channel.
  • DISPLAY: (4) Red LED's display switch position (2) for each channel.
  • POWER: UL approved 100VAC/240VAC, 50Hz/60Hz wall mount power module supplies 12VDC, 500mA to the unit.Has 2-prong, US, non-polarized plug.
  • DIMENSIONS: 19.0" W x 1.75" H x 8.12" D. (48.3 x 4.5 x 20.7 cm)
  • WEIGHT:4.5 lbs (2.1 kg)

PathWay® Model 7142 Dual-Channel RJ45 A/B Automatic Fallback Switch for use in PRI/ISDN Application:

The drawing illustrates two Independent switches in one unit. Each channel has a Device connected to the COMMON port with access to a Device A connected to Port A (The Primary Line) and to Device B connected to Port B (The Secondary Line). In each channel, Port A is monitored for data activity. The Auto Sense feature switches the unit to the B position for its channel when activity is lost on Port A. In each channel, the B position will return when activity returns to Port A or until commanded via front panel pushbutton.

PathWay® Model 7142 Dual Channel RJ45 A/B Switch


  • The switch ports are transparent to all data.
  • All (8) pins of the RJ45 interface are switched via break-before-make electromechanical relays.
  • The unit maintains last set position on power loss and continues to pass data.
  • Upon power restore, the unit will remain in the position and operational mode (i.e. automatic mode or manual mode) it was in at power down.
  • Front panel pushbutton control.
  • Independent control of channels.
  • No Remote Control.
  • Front panel LED's display the present position, mode and power status.
  • Select Automatic Mode or Manual Mode via front panel pushbutton control independently for each channel.
  • Each channel is completely independent and can be in different modes and different positions.
  • In Automatic Mode, the unit automatically chooses its switch position based on the presence or absence of data activity on port A.
  • In Manual Mode, the unit will not monitor the presence or absence of data activity.
  • The unit automatically switches to the secondary line, when no data is detected on primary line.
  • A port is Primary and B port is the Secondary line.

The PathWay® Model 7142 Dual-Channel RJ45 A/B Switch with Automatic Fallback for PRI/ISDN allows the user the capability of sharing a single RJ45 interface device connected to the COMMON port among two other devices connected to the "A" and "B" ports, for each channel. The Model 7142 is enclosed in a 1U full rack size, all metal black chassis designed to provide EMI/RFI shielding and fit in a standard 19" rack.

Each channel may be controlled manually via its front panel pushbutton only. The front panel LED displays indicates switch position and power status.

Each channel monitors data activity on port "A". If the unit is in the A position and activity is lost, the unit automatically switches to the B position. The unit will either remain in the B position until commanded to switch to the A position by the pushbutton or switch back to A position automatically when the signal returns.

Option: Wide Range Power Supply: (Cat No. 517277) CE, RoHS, and UL listed table mount power module, 100VAC/240VAC, 50/60Hz in place of the standard power module that is included with the unit. Has IEC 60320 C14 inlet.  Ideal for international applications.

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Electro Standards welcomes International inquiries: commutateur d'ordinateur,  equipo interruptor, interruttore del calcolatore, interruptor do computador, dator switch.

All data switches, data communication products, and data acquisition products are subject to a one year warranty against manufacturing defects.  The limit of ESL liability is limited to the cost of the ESL product provided.

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