LE75282B
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Line Card Access Switch
Overview
The Le75282 Dual Intelligent Line Card Access Switch (LCAS) device is a monolithic solid-state device that provides the switching functionality of four 2 Form C relays in one economical small package. The Le75282 Dual LCAS device is designed to provide power ringing access to a telephone loop in central office, digital loop carrier, private branch exchange, digitally added main line, and hybrid fiber coax/fiber-in-the-loop analog line card applications. An additional pair of solid-state contacts provides access to the telephone loop for line test access or message waiting in the PBX application. |
Features & Benefits
- Small size/surface-mount packaging
- Monolithic IC reliability
- Low impulse noise
- Make-before-break, break-before-make operation
- Clean, bounce-free switching
- Low, matched ON-resistance
- Built-in current limiting, thermal shutdown, and SLIC device protection
- 5-V operation, very low power consumption
- Battery monitor, All Off state upon loss of battery
- No EMI
- Latched logic level inputs, no drive circuitry
- Only one external protector required per channel
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