
7800MDM-12G
12G to/from Quad-Link 3G Bi-Directional Converter for UHD Signals
Page - 4 Revision 1.0
2.1. INPUT/OUTPUT CONNECTIONS
3G IN A/B/C/D: DIN connectors used to input Quad-Link 3G SDI video streams.
3G OUT A/B/C/D: DIN connectors used to output Quad-Link 3G SDI video streams.
12 OUT/IN 1/2: When used with Evertz SFP3TR-DIN-12G, these provide main and backup DIN
connectors used to input and/or output 12 SDI video streams.
2.2. ETHERNET CONNECTION
All 7800MDM-12G modules are designed to use either 10Base-T (10 Mbps) or 100Base-TX (100 Mbps)
also known as Fast Ethernet, twisted pair Ethernet cabling systems. When connecting for 10Base-T
systems, category 3, 4, or 5 UTP cable as well as EIA/TIA – 568-100ΩSTP cable may be used. When
connecting for 100Base-TX systems, category 5 UTP cable is required. Make the network connection by
plugging one end of a “straight through” cable into the RJ-45 receptacle of 7800MDM-12G module and the
other end into a port of the supporting hub. If you are connecting the 7800MDM-12G module directly to an
Ethernet port on a computer, you will have to use a “crossover” cable.
Straight-through RJ-45 cables can be purchased or can be constructed using the pin out information in
Table 2-1. A color-code wiring table is provided in Table 2-1 for the current RJ-45 standards (AT&T 258A
or EIA/TIA 258B color coding shown). Also, refer to the notes following the table for additional wiring guide
information.
Pin
1
AT&T 258A or
EIA/TIA 568B
1 Transmit + White/Green White/Orange X
2 Transmit – Green/White or White
X
3 Receive + White/Orange White/Green X
4 N/A Blue/White or Blue Blue/White or Blue
5 N/A White/Blue White/Blue
6 Receive – Orange/White or Orange Green/White or Green X
7 N/A White/Brown White/Brown
8 N/A Brown/White or Brown Brown/White or Brown
Table 2-1: Colour Code Wiring for the Current RJ 45 Standards
Note the following cabling information for this wiring guide:
•Only two pairs of wires are used in the 8-pin RJ 45 connector to carry Ethernet signals.
•Even though pins 4, 5, 7 and 8 are not used, it is mandatory that they be present in the cable.
•10BaseT and 100BaseT use the same pins; a crossover cable made for one will work with the
other.
•Pairs may be solid colors and not have a stripe.
•Category 5 cables must use Category 5 rated connectors.