This is link to the curent model :

https://thorbroadcast.com/product/16-channel-sd-hd-3g-sdi-4k-uhd-over-one-fiber-8230.html

Chassis Cards for 3G-SDI, HD-SDI, & DVB-ASI Video

Thor model # F-16SDI-Tx and F-16SDI-Rx are standard configuration Fiber Optic Transmitters and Receivers for Serial Digital signals up to 3G-SDI running @ 3.0 Gbps.  This system can be manufactured with any standard CWDM optics package, and internal passives are available by request.  This is a 16 Channel system based on a standard 40km platform.  No configuration or management is needed, as the system automatically adjusts to any input signal type regardless of bit rate or protocol.  Easy to read LED indicators for input signal detection and optical link are present for all channels.  Since the SDI TX card and RX side are in modular format, we can configure them in an Input-Output configuration. For example, 8 inputs and 8 outputs over a single fiber

• Compatible with any F-CHASSIS card system in any combination
• Available with internal optics for use with a single optical fiber
• Fiber connections between components installed inside of enclosure 
• Redundant power supply option ensures maximum system reliability
• Custom designed solutions provided as needed based on client specifications

Standard Configuration

F-16SDI-TX -  16 HD/SD-3G-SDI fiber Transmitter 

F-16SDI-RX -  16 HD/SD-3G-SDI fiber Receiver

8 Input / 8 ouput configuration

F-8SDI-B-TX/RX is an 8-channel bi-directional HD/SD-3G SDI solution over a single fiber.

Customized configuration:

• F-XX-SDI-TX-YY-SDI-RX: XX represents 1-16 SDI Inputs Transmitter, (the receivers = 16-XX)
• F-XX-SDI-RX-YY-SDI-TX: XX represents 1-16 SDI Output receivers, (the transmitters = 16-XX)

Example: Side A: F-5SDI-TX-11SDI-RX, Side B part number is F-5SDI-RX-11SDI-TX