User Manual Part 1

Link CX-24 User’s Manual
Version 1.0 Page 15 February 2004
Figure 2.2 – Typical EMS/NMS Ethernet Connections
2.5 Planning DS-3 Links
The Link CX-24 DS-3 version uses paired 75 Ohm cables with male TNC connectors for the transmit and
receive data from external DS-3 equipment. YDI sells 25 m (82 ft.), 50 m (14 ft.), and 100 m (328 ft.) DS-3
cables with the correct connectors for these links, as described in Section 1.7.6.
2.6 Power Planning
YDI sells 25 m (82 ft.), 50 m (14 ft.), and 100 m (328 ft.) power cables with the correct connectors for Link
CX-24 power, as described in Section 1.7.6.
2.7 Transmit Power Planning
The Link CX-24 normally uses a manually-set output power level. When Automatic Transmit Power
Control (ATPC) is enabled, the far-end Link CX-24 terminal provides feedback to the near-end Link CX-
24 to set the transmit power to the lowest level required for clear data transmission.
Transmit power can be attenuated by 40 dB for initial configuration and interference isolation. Also, a
maximum transmit power level can be set (whether or not ATPC is enabled) between –30 dBm and
0 dBm to prevent interference with other RF receivers.