The BCM 50 Expansion has the following features:

• Up to 2 units can be attached to any version of BCM50
• Expands capacity for trunks, stations
• RJ-45 LAN port (dual purpose port preservation)
• Supports existing BCM MBMs:
  • 8 port Analogue Station Media bay (ASM8)
  • ISDN30 Digital Trunk Media bay (DTM)
  • ISDN2 Basic Rate media bay (BRI)
  • 16 or 32 port Digital Station media bay (DSM16 / 32)
  • 4 or 8 port Global Analogue trunk media bay (GATM 4/8)