ECU2
The ECU2 is an advanced version of the ECU. The ECU2 is hardware-ready to support IEEE1588v2 PTP,
time-of-day (ToD), and pulse-per-second (PPS) inputs. The external connections of ONS 15454 M6 present
on the ECU2 are:
• 12 remote inventory standard USB connections
• 2 BITS-OUT connections (2 subminiature version B[SMB] connectors for ETSI and 4 wire-wrap pins
for ANSI)
• 10 MHz IN and OUT and PPS IN and OUT (hardware-ready)
• 2 BITS-IN connections (2 SMB connectors for ETSI and 4 wire-wrap pins for ANSI)
• 6 multishelf connections
• 1 element management system (EMS) connection
• 1 craft terminal connection
• 1 time-of-day (ToD) connection (hardware-ready)
• 2 VoIP or 2 user data channel (UDC) connections, or one each of VoIP and UDC connections
• 1 SCSI with 26 poles for TNC relay contact, including alarm cut-off (ACO) signal and digital I/O (D-I/O)
signals (on the left-side connector)
• 1 SCSI with 26 poles for digital I/O signals (on the right-side connector)
The following figure shows the ECU2 connectors.
Figure 68: Connectors on ECU2 Faceplate
The ECU2 should not be used when the shelf is powered at –60 VDC nominal input voltage.
Note
ECU-60V
The ECU-60V is used when the shelf is powered at –60 VDC nominal input voltage. The external connections
of ONS 15454 M6 present on the ECU-60V are:
• 12 remote inventory standard USB connections
• 2 BITS-OUT connections (2 subminiature version B [SMB] connectors for ETSI and 4 wire-wrap pins
for ANSI)
• 10 MHz IN and OUT and PPS IN and OUT (hardware-ready)
• 2 BITS-IN connections (2 SMB connectors for ETSI and 4 wire-wrap pins for ANSI)
• 6 multishelf connections
• 1 element management system (EMS) connection
• 1 craft terminal connection
• 1 time-of-day (ToD) connection (hardware-ready)
• 2 user data channel (UDC) connections
The following figure shows the ECU-60V connectors.
Installing the ONS 15454 M6 Shelf
73
Installing the ONS 15454 M6 Shelf
ECU2
