Installing PCMCIA CardsInstalling Optional Equipment 5-11Installing PCMCIA CardsPCMCIA cards are 68-pin credit card-size devices that fit into the base PCMCIAslot. You can order these cards directly from NCD or from other vendors.CautionDo not insert or remove the PCMCIA card while the unit is running. Always turnNC power off first.Do not use a 12-volt PCMCIA card on Explora 700 NCs. Only 5-volt PCMCIA cardsare supported.Most PCMCIA cards have an arrow on the top face side showing whichdirection you should insert them into the PCMCIA slot. The cards are keyed,so you cannot install them upside down.The rear edge of the PCMCIA card might have a write protect/enable switch.If your card has this switch, it should be in the off position. If write protect isenabled, data cannot be written to the card. If you try to do so, an errormessage appears.CautionAlways turn off the NC power before you change the write protection.Figure 5-9 shows the directional arrow and write protect/enable switch.To install a PCMCIA card:1. Shut off the NC .2. If your PCMCIA card has a write protect switch, set it to OFF.Directionalarrow Write protect/enableswitch set to off (ifapplicable)Top of cardFigure 5-9 PCMCIA Card Features