OptoIso 232-24 Patch Panel

Optical Isolation Patch Panels


OptoIso 232-24 is a DC powered patch panel that provides 24 individually optically isolated RS-232 ports. Designed to protect telecommunication network elements from ground loop induced system failures, OptoIso 232-24 converts data signals to light pulses and creates an optical gap to isolate any grounds.

Easily mounted in a 19" or 23" equipment cabinet, OptoIso 232-24 gives the system integrator the flexibility to confidently combine network elements irrespective of individual power sources. When network elements, such as switch and toll elements, are sharing the same patch panel but using separate power sources, the potential for system failures caused by ground loop surges is significant. These potential failures are totally eliminated using OptoIso 232-24.

  The OptoIso 232-24 front panel consists of 24 RJ45 jacks. Its rear panel connection has 4 TELCO 50 pin ribbon connectors. In between the connectors, OptoIso 232-24 creates an optical gap on each of its 24 ports. Damage caused by ground loop differentials on individual network elements connected across OptoIso 232-24 is eliminated. Similarly, the potential for system failures caused by these ground loop surges is eliminated.

OptoIso 232-24 operates on 48 volts of DC power which means there is no need to provide separate AC/DC power transformation. Each of the 24 RS-232 ports provides over 1000 volts individual isolation. Color-coded LEDs allow easy visual inspection of each port's operation. Space for label identification for each port on the patch panel is provided on the front.



Optical Isolation Patch Panel  
  • Twenty-four (24) individually isolated circuits or port-pairs at data rates up to 115 Kbps (RS-232D).
  • Isolation exceeds 1000 volts between the ports of the port-pair.
  • Three (3) receivers and three (3) drivers per port.
  • Four (4) groups of six (6) RJ45 jacks on the panel. Each group is accessed from the back by a 50 pin TELCO ribbon connector.
  • Standard WECO pin-outs from the 50 pin connector to the associated RJ45 jack.
  • Send and Receive activity from each port-pair is displayed by dual color LEDs above each RJ45 jack.
  • Standard 19" relay rack mounting (extends to 23" with included brackets), 3" high (2 rack units), 6" deep.
  • Input Power (max) 35 watts @ 48VDC nominal.
  • Voltage Range: 36VDC to 72VDC
  • Fully compliant with NEBS Level 3 requirements.
  • Scan point connection provides remote alarming upon power failure.


Multi-Mode Iso Translation (MIT) OptoIso Patch Panel

Multi-Mode Optical Isolation


CBM of America, Inc. is very pleased to announce another new member of its family of "OptoIso Patch Panel Protection" products. In addition to protecting central office network elements that are connected to Lucent Technologies CO/SAM's and Cisco router asyncronous connections, the new CBM Multi-Mode Iso Translation (MIT) OptoIso patch panel can now provide optical isolation for high density asynchronous/synchronous interfaces such as RS530, V.35, and RS232.

The new MIT OptoIso patch panel protects CO network elements that are connected to the widely used Applied Innovation AI-180 Switch, Cisco 2600/3600 router and Lucent Technologies 5E switch.

The MIT OptoIso patch panel, not only optically isolates, but also provides a translation function which allows for switch selectable input and output

  device interfaces. For example, the MIT card can be easily jumpered so that an input interface such as RS232 can be translated to output a V.35 interface, RS530 or any of a multitude of supported interfaces. This functionality provides great flexibility and allows for a wide variety of toll and switch network elements to be shared and protected by a single optoIso patch panel.

CBM designed the OptoIso patch panel to address the problem of ground plane violations which are caused when network elements, such as switch and toll elements, share the same patch panel, but are using separate power/ground sources. This situation violates the isolated ground plane and creates a potential for ground loop surges, which can cause intermittent problems, and in some cases, extensive damage to the attached network element.



Designed for Expandability

  • Each Universal CO Chassis (UCC) support up to twenty individually isolated MIT cards.

Ensures For Maximum Protection

  • Each MIT module provides up to 1000 vosts of port to port isolation.

Provides Wide Translation Flexibility

  • Each MIT module's input and output interfaces are individually configurable to support the following interface standards.
    V.35, V.36, RS232, RS530, RS422, RS449

Supports High Transfer Data Rates

  • The MIT module can support data rates of up to 120 KB.

Display Status & Activity Indicators

  • The MIT's front panel has (7) LEDs that display control & data functions that quickly identify port to port circuit status and line activity.
  Allows for Adaptability

  • A four port adatper is available that allows for the isolation of ports that are connected to the widely used Applied Innovation AI1961/X interface card.

Meets NEBS Level 3 Compliancy

  • Ensures for safe system integrity and operation within the central office.

Power & Dimensions

  • Input Power (max): 60 watts @ 48VDC nominal
  • Voltage Range: 36VDC to 72VDC
  • Width: 19" (23" extension optional)
    Height 7" Depth 8"

Pre-configured to Plug and Play

  • Each Universal CO Chassis comes pre-populated with dual DB25 connectors on all 20 slots. Just slide in the MIT card, connect cables and your critical circuit is protected.

Integrated with Scan Point Alarming

  • Scan point connection feature provides remote alarming upon MIT power failure


Optical Isolation Protection
Critical Network Elements