Specifications

DigitalMedia™ CAT & Fiber Transmitters 300N Crestron DM-TX-300N/-F
6. The DM OUT port consists of two separate RJ-45 connectors labeled D and M. The D port carries
HDMI signal. The M port carries data. Refer to the following table for the connector pinouts.
D and M Ports
18
PIN # WIRE COLOR PIN # WIRE COLOR
1 Orange/White 5 Blue/White
2 Orange 6 Green
3 Green/White 7 Brown/White
4 Blue 8 Brown
7. For DigitalMedia CAT wiring, use DM-CBL DigitalMedia Cable. Do NOT use low skew cable. Up to
two DM Repeaters (model DM-DR, sold separately), may be required. Refer to the latest version of
the Crestron DigitalMedia Design Guide (Doc. 4789) for complete wiring guidelines.
8. DMNet wiring is not compatible with Cresnet wiring. DMNet wiring cannot be daisy chained.
9. Refer to the following table for the 24 A B G connector pinouts.
24 A B G Port
24
GAB
PIN # SIGNAL DESCRIPTION WIRE COLOR
24 24V DC DC Power Red
A DMNet+ DMNet Orange
B DMNet- DMNet Grey
G Ground DC Ground Black
10. DM-TX-300N-F only.
11. The DM OUT port consists of two separate fiber optic SC type connectors, labeled D and M. The D
port carries HDMI signal. The M port carries data.
12. For DigitalMedia fiber wiring, use CresFiber or other quality duplex multimode fiber optic cable.
Refer to the latest version of the Crestron DigitalMedia Design Guide (Doc. 4789) for complete
wiring guidelines.
18 • DigitalMedia™ CAT & Fiber Transmitters 300N: DM-TX-300N/-F Operations Guide – DOC. 6907D