Hardware Technical Reference Manual
The Universal NSU front panel contains:
• RS-232 serial port (DB-9 connector to a PC) for maintenance purposes such as field
installation, database upgrade, access to logs, and modem connection for remote access
• Ethernet port (RJ-45 connector) for administration with IMAT
• Two FIM ports - 820nm multimode only (1 Tx, 1 Rx)
• Two CIM ports
• Faceplate LEDs
• Reset button.
The Universal NSU rear panel consists of the following components:
• Message Link DIP switch for designating a unit number (1 or 2) when two NSUs are chained
together
• Two T1/ E1 ports for network connection
• Two T1/ E1 port status LEDs
• Two T1/ E1 port DIP switch complexes
• Protective ground for grounding the chassis
• Standard Male IEC AC input power connector.
Figure 20: Universal Network Services Unit Front Panel
Figure 21: Universal Network Services Unit Rear Panel
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