Chassis for Short Range Modems

• High density 19" modem rack (up to 14 cards)
• Compact – 4U high
• Hot-swappable cards and power supplies
• Indicator LEDs on each card
• Fully redundant power supply
• Optional power feeding from different power sources (AC or DC)

• Versatile central office concentrator for RAD access devices
• Any combination of up to 14 modem cards, with support for 20 different cards
• Fiber optic and copper wire modems in a single modem rack for maximum flexibility

High density hub for short range modems

The ASM-MN-214 hub for short range modems versatile modem rack is a high density unit capable of housing any combination of up to 14 cards.

Redundant power supply

The ASM-MN-214 hub for short range modems accommodates two separate power supplies. Each power supply supports a full rack of any combination of cards. The power supplies can be either AC or DC and are suitable for power redundancy. Replacement during operation (hot-swapping) is possible, with no effect on the modems and their data transmission.

Cards that are currently supported: ASM-10/8/R, ASM-31/R, ASM-40-1/R, SPD-703-1/R, FOM-20/R, FOM-40/R, FOM-E1T1/R, FCD-2L/R, RIC-E1/R, RIC-T1/R.

The ASM-MN-214 hub for short range modems has a terminal block for the line interface and a 25-pin connector for the digital interface. The terminal block is a snap-type connector for easy replacement.

An optional mechanical adapter, the CIA, is used to convert the 25-pin connector to the required physical connector for either V.35 or X.21 interfaces.