NAT-MCH Users Manual Version 1.16

NAT-MCH – Users Manual
2.3.2 SMA Connectors – External Clock Reference
This input/output can be used to feed an external reference clock into the NAT-MCH or
provide a reference clock for other systems. The input clock can be distributed by the
Telecom Clocking Module to any AMC slot in the system. The output can provide a clock
sourced from any of the AMCs or a local clock generated by the onboard PLL.
For technical data of this input/ouput please refer to the NAT-MCH Features section.
2.3.3 Dual GbE Uplink Port
The NAT-MCH has two 10/100/1000 BaseT (autonegotiation) uplink ports which are
connected to the internal GbE switch circuit. The ports can be joined together in port trunking
mode to double the uplink throughput performance. One of the ports is used as the designated
management port.
2.3.4 Management Interface Port
One of the GbE uplink ports is used as the management interface fro external hosts to
communicate with the onboard Shelf/Carrier manager by RMCP. By default the management
port is assigned to GbE uplink port 1
The management port can be used by any external Shelf or System Manager to control the
operation of the NAT-MCH and the system. The onboard CPU supports TCP/IP and RMCP
accesses.
2.3.5 Console Port – USB / Telnet
The console port provides an interface to the Command Line Interface (CLI) of the onboard
CPU. The console interface can be used to set the operational and configuration parameters of
the NAT-MCH. Once the IP configuration has been set, the console interface can be switched
to a Telnet session by connecting via Telnet.
2.3.5.1 Console Port of MCH V3.x (Gen3) - USB
The NAT-MCH of generation 3 (V3.x) use a USB interface as console port. The console port
provides a USB-CDC type of interface. Interoperability has been tested with the standard
drivers included in Windows 2000,XP, Vista and Linux.
When connecting first time to a windows machine a new device will be installed (NAT-MCH
console). To successfully complete the installation a device information file must be provided
to the system. N.AT. provides the required “nat_mch.inf” text file for download from its web
side or ftp server.
Under Windows the new device can be accessed by standard terminal programs like
“terraterm” (COMxx) port. The new device and the assigned COM port can be looked up in
the Windows device manager.
Version 1.16 © N.A.T. GmbH 19