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9404-EO-CWDM 4K/3G/SDI/ASI/MADI EO CWDM Extender (Tx) 4x4 Card by Cobalt Digital

9404-EO-CWDM 4K/3G/SDI/ASI/MADI EO CWDM Extender (Tx) 4x4 Card by Cobalt Digital

Out of stock
The 9400-EO-CWDM series Coax-To-Fiber CWDM Transmitters allow up to four separate SDI, ASI, or MADI streams (per card) to be multiplexed onto fiber-optic trunks using CWDM.
  • Brand
    Cobalt Digital
  • SKU
  • Weight
    1.00 lbs
  • Warranty
    5 Years
  • Condition
  • Status
Questions? Ask our experts!


This listing is for 9404-EO-CWDM only. Use description below as a general reference.

Coarse Wave Division Multiplexing (CWDM) offers a cost-effective, scalable, and convenient solution for multiplexing and de-multiplexing discrete coaxial channels onto a shared fiber trunk. The 9400-EO-CWDM series Coax-To-Fiber CWDM Transmitters allow up to four separate SDI, ASI, or MADI streams (per card) to be multiplexed onto fiber-optic trunks using CWDM. Available in numerous wavelength divisions and fiber connector types, the 9400-EO-CWDM series provide a card-based solution for high-density distribution and multiplexing between discrete coax signals and fiber trunks. With up to four coaxial channels accommodated per card and 18 available discrete fiber wavelengths, the 9400-CWDM series can accommodate up to 18 discrete coax channels. Utilizing the openGear® open-architecture platform, the 9400-EO-CWDM series offers scalable incorporation and the easy-to-use DashBoard™ setup and control operator interface.

The CWDM series provides E-O conversion of up to four BNC inputs to up to four fiber CWDM wavelengths. An external mux/de-mux (such as our BBG-4490-CWDM Modular Multi-Channel Fiber Optical Multiplexers/De-Multiplexer) can combine the card individual CWDM fiber outputs onto a single shared fiber trunk, if desired. In addition to 3G/HD/SD-SDI support, the cards support a wide range of signals/standards from 5 Mb/s to 3Gb/s. Full user remote and card-edge monitor/control allows full card status and control access locally or across a standard Ethernet network using DashBoard remote control.


  • Card-based design allows scalability with up to 40 BNC/Fiber interfaces per frame
  • Available in quad, triple, dual, and single-wavelength E-to-O versions
  • Low power/high-density design; only 10 Watts max. per card
  • Full support of 5Mbps thru 3Gbps transport conversions, with seamless auto-mode reclocking. No switches to set for different payloads.
  • Compatible with SMPTE 425, 292M, 259M, 310M, M2S, DVB-ASI, and MADI audio
  • Status indicators for data rate and lock
  • Error-free pathological support
  • Available with LC, ST, SC, or FC fiber termination
  • Remote control/monitoring via DashBoard™ software, with soft-configurable crosspoint, EQ on/off, and reclock on/off
  • Five year warranty


Power: 10 W (max)


Tx/Rx Fiber Range:

Single-Mode optics; rates thru SD: 40 km (24.8 mi) max       Single-Mode optics; rates thru HD: 24 km (14.9 mi) max

Fiber Connector Type: LC, ST, SC, or FC (see Ordering Information)

Standards Supported: SMPTE 259M-C, SMPTE 292M, SMPTE 425M, SMPTE 297M, DVB/ASI, HD-SDI (SMPTE 292M), SD-SDI (SMPTE 259M) with EDH, MADI (AES10-2003) (Not compatible with AES-3id (standard AES PCM))

Input Type:  (4) BNC, 75Ω

Fiber Outputs:       9401-EO-CWDM: (1)       9402-EO-CWDM: (2)       9403-EO-CWDM: (3)       9404-EO-CWDM: (4) For wavelengths, see Ordering Information

Fiber Output Optical Power: -5 dBm to 0 dBm

Laser Power Range: Laser Class 1

Added Jitter: <0.03 UI under 1 MHz

Free Ground Shipping
We offer free ground shipping on every purchase of $300 and more for US and US territory. Please choose "Free Ground Shipping (UPS/USPS)" option at checkout.

UPS Ground
UPS provides up-to-date tracking information. Ground service takes anywhere from 2-7 working days for delivery depending on destinations.UPS Ground does not deliver on Saturdays, Sundays or Holidays.

USPS Priority Mail/USPS Express Mail For all shipments shipped via USPS, we offer 'DELIVERY CONFIRMATION' number with each package. Difference between tracking number provided by UPS vs USPS Delivery Confirmation number is: Delivery Confirmation status is updated when the delivery has been made or when the package has made it through major USPS stations.

Air Shipment
Air shipments, Overnight, 2nd day and 3 day select methods offer guaranteed delivery time for your shipment. If you are in hurry or in need for the items on schedule, select one of these methods. Up-to-date tracking information is provided with each Air Shipment. AVProSupply has the right to choose between Air shipments to meet or reduce delivery time. For guaranteed delivery of multiple items with expedited shipping, please contact our customer service representative for personalized assistance to get your items delivered to you when you need them.

International Customers
We offer shipping via USPS/UPS for our international customers. You can find different shipping options during checkout.

Most items ordered from AVProSupply will be shipped out from our California Warehouse. Will-Calls are only allowed with Appointment Only - Please call Customer Service to set one up between the hours of 9am to 6pm PST.


Major Credit Cards: Visa, MasterCard, Discover and American Express.
Paypal: You can select an option of Paying with Paypal in our shopping cart.
Money orders: and personal checks or company checks (may take up to 10 days to clear).
Wire Transfer: ( Bank Transfer ) Only for the amount over $500. Contact us for the bank details.
Phone Orders: To place a phone order please call 1.888.902.3309 or 1.916.246.6264 and one of our Customer Service Representatives will take your order (8:00am - 6.00pm PST).

Purchase order: Fax purchase orders to 1.916.672.2557

We Offer A 30-Day Money Back Guarantee: 
Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.

Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.

If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.

No Returns/Exchanges on the following:

TVs and monitors 20" and larger
Special Order merchandise
Any item indicated on the website as non-returnable

For more information see our official Return Policy

  • Shipping Info
    We offer free ground shipping on every purchase of $300 and more for US and US territory. We deliver worldwide.
  • Payment Methods

  • Return Policy
    We Offer a 30-Day Money Back Guarantee