Comtech EF Data CDM-750 - Manual (Page 57)

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Rear Panel Connections MN-CDM750
3–11
3.2.3 Terrestrial Data Connector Group
3.2.3.1 J5 | DATA, J6 | DATA Connections, RJ-45F
It is strongly suggested that the user does NOT mix products of different speeds
(e.g., 10BaseT on J5, 100BaseT on J6, and GigE on J7), or different duplex operation
(e.g., half duplex on J5 and full duplex on J7), as this may cause a degradation in
speed/performance of the data link traffic.
The RJ‐45 female J5 | DATA and J6 | DATA connections are auto‐sensing,
auto‐crossover ports used for 10/100/1000 BaseT Gigabit Ethernet data traffic.
Each port features two LEDs that provide the following operational indicators:
LED State Activity
1 (left-hand)
Green 1000 Mbit activity (GigE) detected
Amber 100 Mbit activity detected
Off 10 MBit activity detected
2 (right-hand)
Yellow Link detected
Blinking Yellow Activity detected
Off No Link detected
The typical connector pinout is as follows:
Pin # Description Direction (I/O)
1 TRP1+ I/O
2 TRP1- I/O
3 TRP2+ I/O
4 TRP3+ I/O
5 TRP3- I/O
6 TRP2- I/O
7 TRP4+ I/O
8 TRP4- I/O