36 TMAA01-02 RS-232 Board TM8100/TM8200 Accessories Manual© Tait Electronics Limited August 20053.2 Installing the RS-232 Board3.2.1 Parts RequiredThe following table describes the parts required to install an RS-232 board ina radio. The parts marked with an asterisk (*) are not shown in Figure 3.1 andare used to connect to the radio’s external options connector.3.2.2 Installation Procedure1. Disassemble the radio in order to gain access to the options cavity.For detailed disassembly instructions, refer to the disassembly proce-dure in the service manual.Refer to the diagram on the following page and the instructions below.2. Remove the top cover and lid b from the radio to access theoptions cavity.3. Remove the external options connector bung c, if it is fitted.4. On the inside of the radio lid place the foam seal d over the externaloptions connector cavity e.5. Plug one end of the internal options connector loom into the internaloptions connector on the RS-232 board.6. With the top side of the RS-232 board f facing the radio lid, guidethe external options connector g (the D-range connector on theRS-232 board) into the external options connector cavity.Important The external options connector screw-lock fasteners mustbe tightened correctly before screwing the RS-232 boardonto the mounting posts i.7. Screw the external options connector to the radio lid using the twoscrew-lock fasteners h.Tighten the fasteners to a torque of 0.9N·m (8lbf·in).Table 3.1 RS-232 installation parts requiredQuantity Internal Part Number Description Figure 3.1Reference1 362-01111-XX aa. Contact Technical Support for the exact IPN.foam seal d1 362-01108-XX a cover seal 1!2 347-00011-00 4-40x3/16 screws 1@2 354-01043-00 screw-lock fasteners h4 349-02062-00 M3x8 screws j*1 240-00034-00 D-range plug —*1 240-06010-29 D-range hood —