Each 12-port module includes 12 modems. Therefore, in a fully populated MICA card, you can have up to 120 ports. Or, in a fully populated access server chassis, you can have up to 120 modems. Ten of these modem modules can be configured on each of two cards for a total of 120 ports per card or a total of 240 ports per chassis. The 12-port modules cannot be used as standalone cards and they cannot be installed in Microcom carrier cards.