TN2170 alarm is a component of the CallVisor ASAI/DEFINITY LAN
Gateway Circuit-Pack Assembly (ED-1E546, which is being replaced
by the J58890MA-1) and the DEFINITY AUDIX Circuit-Pack Assembly
the TN2169, the TN2170 monitors system power and environmental
status, -48 VDC to +12 VDC power conversion for the disk drive
and tape drive, and remote terminal access.
addition, the TN2170 supports an external Ethernet LAN connection.