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allows the user to invoke On/Off/Boot commands, but prevents redefinition of parameters
such as the Password and Power-Up Default.
Switch Function Up Down
1
Control Port Baud
Rate
2400 bps 9600 bps*
2 Off Time 10 sec. 5 sec.*
3 Password Function Disable Enable*
4 Read Only Mode Enable Disable*
* = Factory Setting
3.2. Control Port Connection
The male, DB9 connector (labeled "RS232") is used for connection to an external modem or
local PC. The RS232 Port uses a DTE configuration, similar to an AT computer. Figure 3
describes the Control Port interface.
Figure 3: RS-232 (Control Port) Interface Schematic
3.2.1. Connecting to a Modem
When connecting directly to an external modem, use a standard AT to Modem cable. Make
certain the modem is initialized at the same baud rate as the RPB+ (SetUp Switch 1). The
modem must be placed in Auto-Answer mode, and set to answer in one ring. Please refer to
the user's guide for your external modem in order to determine the appropriate AT command
RPB+; Remote Power Boot Switch -- User's Guide
file:///C|/WEBPAGE/guides/rpbp/build/rpbpguid.htm (5 of 12) [3/9/2000 5:08:10 PM]