Setup guide

12-5
Remote Maintenance
Modem on a Node’s S2 Plug
Basic Cabling for a Uni-node Configuration
• On an EPC 800 node the modem is external.
• On an EPC 400 node the modem is integrated (ISA board) inside the drawer.
• On an EPC1200 or EPC1200A system, the modem is external.
For ECP800, the modem support is put into the rack. An external modem is connected to
the native serial port S2 on an EPC800 or EPC1200 node. The integrated modem of an
EPC400 node is configured together with RSF software.
Cabling Diagram without Console Concentrator
Figure 135 applies for a 2-node EPC800 configuration with a Cluster Console (X terminal).
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Figure 135. Remote maintenance: Modem on a Node’s S2 plug without Console Concentrator.
Cabling Schema with Console Concentrator
This diagram shows a configuration with a Cluster Administration Hub. It still works for a
configuration without a Cluster Administration Hub. In that case the nodes and the X
Terminal are to be connected to the Customer’s Ethernet network.
A CPU drawer of an Escala EPC is provided by default with an 8-port async. card. For
remote maintenance purposes, in the case of a configuration with a cluster console, an
8-port async. card is necessary on the node to which the modem is connected.