| 摘要 |
<p>The card (10) has a housing (101), a modem (105) for function execution, a first external communication port (104), and an interface circuit (109) between the port and modem. It has a second port (111) and another interface circuit (110) between this port and the modem. The number of exterior communication ports on the card is greater than two, and the card uses PCMCIA format. The card contains a bus (108), interrupt control circuit (112) and two zone memory (118). One of the ports is a RS232 port, one is a parallel port, one is a RJ45 port and one is a USB port.</p> |
