SECOLink Line Card for Secolink CMS ReceiverLine card for Secolink CMS receiver support PSTN & PABX line FEATURES Telephone lines 1 Event log buffer for events and caller ID's 500 Supporting users 1 card until 150 users, 2 cards until 500 users (if telephone station is in PBX) Speed It depends on communication format and alarm control panel. Two way audio communication Yes Continous monitoring by central processing card Yes Immediate troubles displaying at LCD display Yes Standalone mode If it