User`s guide
to an AT computer. Appendix A describes the port interface.
3.3. Connecting an External 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 NPS (Option Switch 1). The modem must be set to Auto-Answer, in one ring.
Please refer to the modem user’s guide for further information. Section 4.4 describes the procedure for defining the modem
command strings. Appendix A describes the modem port interface.
3.4. Connecting the Network Cable
The Network Port is an RJ45 Ethernet jack, for connection to a TCP/IP network. Connect your 10Base-T cable to the
Network Port, then complete the remainder of the installation procedure. Before attempting to access the unit via network,
please assign the IP Address, Gateway Address and Subnet Mask as described in Section 4.6.
3.5. Power Supply Connection
The NPS includes two AC inputs. The Bus A input provides power for NPS control functions and plugs 1 through 4. The
Bus B input provides power for plugs 5 through 8. In order for the NPS to function, Bus A must be connected to an
appropriate AC power supply. In order to use plugs 5 through 8, Bus B must also be connected to the power supply. If
plugs 5 through 8 will not be used, it is not necessary to connect power to Bus B.
3.6. Connection to Switched Outlets
The Main Power Switch must be "On" in order for the NPS to operate. When the unit is powered On, the eight AC outlets
will be switched On or Off, as specified by the user defined Power-Up Default (see Section 4.5).
NPS-115: Each outlet can switch up to 15 Amps AC. The total for each Bus cannot exceed 15 Amps.
●
NPS-230: Each outlet can switch up to 10 Amps AC, The total for each Bus cannot exceed 10 Amps.●
3.7. Reset Unit to Defaults
If Option Switch settings are changed while the unit is powered On, new settings will not be applied until the unit is reset
to default settings. There are two ways to reset the unit to defaults:
Note:
When these reset procedures are performed, all user selected parameters, including passwords and port
names will be lost. It is strongly recommended to record all menu selected parameters before performing
either of these procedures.
3.7.1. Default Parameters Option
This method allows default parameters to be set without effecting the On/Off status of the NPS's eight switched plugs. To
NPS Series Network Power Switch -- User's Guide
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