Icom IC-M504 instruction manual HM-162/HM-157installation, Connections And Maintenance

rReturn the cables and screws to the original position.

• Be sure not upside down the flat cable.

CAUTION:

•When re-assembling the case and tightening the screws, you must keep the specified torque (0.5±0.07 N.m). Oth- erwise the transceiver may be damaged (torque too high) or lose waterproof efficiency (torque too low).

•When uninstalling the optional unit, remove it vertically. Wiggling the unit from side to side may damage the op- tional unit's connector.

CONNECTIONS AND MAINTENANCE 9

■HM-162/HM-157 installation

HM-162 HM-157 9

The optional HM-157 can be connected to the transceiver di- rectly, as well as via the supplied connection cable for longer distance remote operation. The connector of the connection cable can be installed into a cabinet, wall, etc., as a built-in plug.

•The optional HM-162 should be installed to the transceiver using the supplied connection cable.

For longer distance remote operation, the optional extension cable, OPC-1541/OPC-999* (6 m; 20 ft/connecting between transceiver and the connection cable), is available, and up to two OPC-1541/OPC-999* can be added.

*OPC-1541 : For the HM-162

OPC-999 : For the HM-157

Do not connect the HM-162 to the OPC-999, and the HM- 157 to the OPC-1541.

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