User's Manual

3. Commissioning
Page 24 MF0145ASA.docx User’s Manual for ION
®
-M7HP/85HP EU
3.2.4. Grounding (Earthing)
Grounding must be carried out. Connect an earth-bonding cable to the grounding
connection provided at the outside of the unit (see chapter 3.2.3 Connections). Do
not use the grounding connection to connect external devices.
figure 3-10 Grounding bolt figure 3-11 Grounding bolt, schematic view
After loosening the hex nut, connect the earth-bonding cable between the two
washers as illustrated in the figures above. Then, fasten all parts again with the hex
nut.
3.2.5. Connection of the Antenna Cables
The unit has N-type antenna connectors. Please refer to chapter 3.2.3 Connections
for its location. Refer to the corresponding documentation of the connector
manufacturer for mounting the cable connectors.
The bending radius of the antenna cables must remain within the given
specifications.
Choose the type of cable best suited for the antenna. Consider that a cable with
higher loss is less expensive but impairs performance.
Notice: Use an appropriate torque wrench for the coupling torques:
- for N-type connectors (2 N-m / 20 in lb) with 13/16 in opening,
e. g. item no. 244379 available from the CommScope e-catalog
- for 7/16 DIN-type (25 N-m / 19 ft lb) with 1 ¼ in opening,
e. g. item no. 244377 available from the CommScope e-catalog
Do NOT use your hands or any other tool (e.g. a pair of pliers)! This might
cause damage to the connector and lead to a malfunction of the RU.