GE 994-0089 User Manual

Page of 92
 GE 
Energy 
 
D400 Substation Data Manager User's Manual  
59
 
4.8 Modem 
Connections 
A COM2 port is provided on the COM2 Port Adapter or the Redundant TP Ethernet + COM2 
Port Adapter. The COM2 port can support serial connections for the following dial-up 
interfaces: 
•  External modem 
•  Point-to-point protocol (PPP) services 
•  Wide area network 
The COM2 port provides a single DB-9 connector wired for an RS-232 DCE signal. The 
COM2 Port Adapter plugs into any NET slot (slots 11 and 12) of the D400. The Redundant 
TP Ethernet + COM2 Port Adapter plugs into the NET1 slot (slot 11). 
Note:  The COM2 Port requires an external modem to provide dial-up functionality. 
See section “3.11 COM2 Port Adapter” for more information. 
» 
To connect a modem to the COM2 Port Adapter, use a straight-through 
modem cable (not supplied with the D400): 
 
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Modem