Failsafe, Redundancy and Fall-Over Switches

These systems are designed to act as safety devices in situations where you need to automatically switch cabling between redundant devices or reroute cabling in emergency situations. They can be used for coax signals, network communication cabling, power wiring or almost any application where the loss of a connection creates a serious demand for a rapid solution. They are also useful in remote systems that require rerouting of signals without having to be at the physical location. or even situations where you simply need to disconnect a signal quickly.

Applications:

• RF and Microwave applications such as satellite dishes, cable TV, video signals in 50 or 75 ohms up to 40 GHz.
• Network, LAN, WAN, Telco with RJ45 Connectors. Disconnect or reroute signals remotely.
• Multi-wire signal groups on D9, D15, D25, D37 or D50 connectors. Video Monitors, RS232, 422, EIA 530 subsets.
• AC or DC Power. Typical 110 / 220 AC, DC up to 1000 Volts or up to 150 Amps.
• Custom solutions for any connector types or signal types.

CONTROL MODULES

IF-12 LAN / RS232 / GPIB Control (optional USB to RS232)
Cytec’s newest control module has the three most popular control interface protocols built into one module and is backwards compatible with all previous Cytec control modules. Simple control using ASCII text strings makes programming easy. Go to https://cytec-ate.com/quickstart/getting-started/ for more information.

LAN – 10/100BaseT Ethernet with an RJ45 Connector.
The interface uses DHCP or Local loop for autofind or can be set to a static IP for secure networks. There are three ports available and all may be used at the same time. Two ports can be set by the end user and one is the default Telnet which may be disabled.

RS232 – Standard D9 serial port which can be used from computer COM ports or USB to COM port cables.

GPIB – IEEE488.2 compliant control module. Commonly used with automated test applications. Works with all GPIB control cards and software including National Instruments LabView and LabWindows, Matlab and Keysight.

Drivers and programming examples available upon request in almost any programming language.

Common CTC and CTA Chassis for Coax and Microwave

The CTC and CTA Series are 19″ rack mounting chassis with built-in power supplies and are designed to hold any Coax, RF or Microwave  2×1 or 2×2 switch modules. The front panels have discrete LEDs showing the status of all switch points and also provide the optional manual controls. CTC chassis hold the Form C switches, while the CTA type holds Normally Open 2×1 switches that need two drives per module.

CTC/32 MAINFRAME OR -E EXPANSION CHASSIS
Each chassis holds up to 32 2×1 or 2×2 Form C Switches which are in a Normally Closed (NC) position when OFF and a Normally Open (NO) position when ON. Or it can control up to 16 Form A Normally Open or Latching switch modules that require two drives per module. LEDs on the front panel show both switch and power status. Controls and user-selected 2×1 switches complete the system.

Photo of 32 channel switch front panel with LED pushbuttons
CTC/32 Mainframe with Pushbutton Manual Control

Dimensions: 19″ rack mounting 
                       15″ deep
                       5.25″ (3 RU) high 
Weight:         20 lbs. (9 kg) max
AC Power :   30 W max. 115/230 VAC selectable

Drawing depicting the rear panel of a CTC/32 Failsafe switch
CTC/32 Rear Panel with IEEE488 & RS232 Control

CTA/128 MAINFRAME OR -E EXPANSION CHASSIS
Holds up to 64 CXR/2×1 Normally Open switches. LEDs visible through the front panel show both switch point and power status. Add controls and coaxial 2×1 switches complete the system. One CP8 Display/Driver Module is required for every four switch modules.

Dimensions: 19″ rack mounting
                        15″ deep
                        10.5″ (3 RU) high
Weight:           30 lbs. (14 kg) max
AC Power :     50 W max. 115/230 VAC selectable

Drawing depicting a CTA/128 Rear Panel
CTA/128 Rear Panel with IEEE-488, RS232 & LAN Interfaces

Other Chassis Sizes:
CTC or CTA 16 — When space is a premium and you only need 16 Form C switches or 8 Form A switches
CTC or CTA 64 — Same as the CTA/128 but can only has drive modules for 64 relays and size is minimized.
CTC or CTA 256 — Drive chassis used to control multiple switch chassis.

ALL CHASSIS
Material: Gray anodized extruded or sheet aluminum with a polycarbonate front panel overlay.
Mounting Hardware: Rack mount handles are standard. Flush mount flanges available at no cost.
Protection: Selectable AC input fused at: 2 amps 110 Vac, 1 amp 220 Vac.
Temperature: Operating: 0 to 55 deg. C Storage: -25 to 80 deg. C

MANUAL CONTROL OPTION
Manual Controls are available for all mainframe chassis.
CTC/16, CTC/32 and CTA/32 chassis can be purchased with optional pushbutton manual controls PB/16 or PB/32. CTA/64 mainframes are available with with optional thumbwheel manual controls M/64-TW. CTC/64 and CTC/128 mainframes can be built with with optional keypad manual controls MC-2.

Compatible Switch Modules
  • Coaxial switch modules for 50 ohm, 75 ohm or balanced line 100 ohm signals. Frequencies up to 2 GHz (some higher). 2×1 A/B switches and 2×2 Transfer switches.
    See the CXAR product line for schematics and specifications. 
  • Microwave switch modules for 50 ohm signals DC to 40 GHz. 2×1 SPDT relays and 2×2 Transfer switches. Terminated and Latching options.
    See the CXM product line for schematics and specifications.
RJ Style Switches for Telecom, Networks and Digital Data

The RJ Series includes 19″ rack mounting chassis with built-in power supplies and are designed to hold 2×1 or 2×2 eight wire switch modules with RJ45 connectors.  Pairs are switched using the EIA / TIA pin-out of 1-2, 3-6, 4-5, and 7-8.  Can be used for Telecom, DSL, Ethernet up to 10G, RS422, or any digital data needing to be switched over 100 ohm pairs.  Mechanical relay switches act exactly like a piece of cable for pure physical layer control.  Remote status feedback allows tracking of closed switches from LAN, RS232 or GPIB.  Available with optional manual controls. 

RJV/48 or RJV/144 CHASSIS
Each RJV/48 holds up to four RJV/4(1×2) Modules.  Each switch module has four separate 2×1, eight wire, normally closed switches.  The switches are in a Normally Closed (NC) position when OFF and a Normally Open (NO) position when ON. 

Each RJV/144 holds up to 12 of these modules for a total of up to 48 2×1 switches.

Network Failsafe switch
RJV/48 Rear Panel

Dimensions: 19″ rack mounting
                        15″ deep
                         RJV/48 = 5.25″ (3 RU) high      RJV/144 = 10.5″ (6 RU) High
Weight:         35 lbs. (9 kg) max
AC Power :   60 W max. 115/230 VAC selectable

Redundant failsafe network switching
RJV/144 Rear Panel
  • RJV SERIES – A/B switches for Telecom, DSL, LAN or WAN. The RJV Series accept 8 wire CAT6A RJ45 A/B switches for telecom and network redundancy applications. Modules with CAT6A connectors work with Ethernet LAN rates up to 10G copper. The modules may be used with any 8 wire signal but is specifically designed for pairs using the TIA/EIA 568 pair scheme on RJ45 connectors. See the RJ product line for more information.
Custom Failsafe Switches for almost any application

Cytec can manufacture Failsafe or A/B switches for any application.  Options include D connector versions in 9, 15, or 25 pins.  Spacewire switches.  Group switches up to 1000 wires.  Power switches up to 500 volts and up to 160 amps.  High voltage switches up to 25 KV.  Don’t see it?  Just ask!  E-mail sales@cytec-ate.com or call 585.381.4740.  Humans answer our phones.