NEC DS1000 3x8x4 Expansion Board with Built-In Caller ID

By removing the main equipment cabinet cover and snapping in the Expansion Board, the DS1000 can accommodate an additional:

• 3 trunks
• 8 digital extensions
• 4 analog extensions
• 1 Analog Door Box
• 1 Analog Door Box Control Relay that can alternately be used for
External Paging amplifier control

With the Expansion Board installed, the total system capacity is:

• 6 trunks
• 16 digital extensions
• 8 analog extensions
• 2 Analog Door Boxes
• 2 Analog Door Box Control Relays
• 1 External Paging output
• 1 Music input