Manufacturer : IMC Networks

MPN : 852-10133
Description : IMC Networks 852-10133 AccessEtherLinX/4 Optical Access Media Converter 4 x RJ-45 , 1 x SC 10/100Base-TX, 100Base-FX Mfr.

TX-4 + SSFX-SM1310-SC 20km

852-10133

Here is a link to more info from IMC Networks Website: HTTPS://www.imcnetworks.com/Assets/DocSupport/ds-AccessEtherLinX.pdf