• Smart card for public telephone equipment re-equipped with card readers for the kind CHIP CARD.

• Bridge of food:
• Designed to be used in telephone lines to 48 Vdc (+ / - 5VDC) to bridge the supply of 2 X 250 ohms, 5 H and line of 280 ohms / Km with maximum line resistance of 1400 ohms.

• Allows variation of voltage in the range 44 to 66 Vdc.
• Consumption of up to line with the telephone handset on the hook 1.5 mA.
• Eliminates use of batteries.
• Communication with the management system via modem V-22 BIS.

Alarms of failures:
• Breaking the telephone handset.
• Opening the door improperly.
• Failed reader.
• Failure of modules SUNS.
• Failure of keyboard
• Failure to display