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14.2.11 RS-232 Interface Parameters
The service terminal interface parameters are the following settings and cannot be changed.
14.2.12 Maintenance Bypass
The STS2/PDU is configured to allow the unit’s electronics to be bypassed to either input source for
maintenance without interruption of power to the load.
The STS2/PDU is furnished with key-interlocked maintenance bypass breakers to configure the
bypass.
STS2/PDU units have all electronics isolated from the input, output and bypass connections to allow
safe servicing of any components without access to hazardous voltages when the unit is in mainte-
nance bypass.
See 10.4 - Maintenance Bypass for instructions.
14.2.13 Fuseless Design
All STS2/PDU units are fuseless.
14.2.14 Options
The following options are available for the STS2/PDU:
• Panelboards
• Subfeed Breakers
• K-Factor Transformers
• Surge Suppression System (TVSS)
• Redundant Static Switch Output Breaker
• Programmable Relay Board
• Comms Board w/SiteScan and Modem Interface
• Internal Modem
• Input Contact Isolator Board
• Network Interface Card (NIC)
• Remote Source Selection
• Key Lockout Switch
• Export Crating
See 6.0 - Options for more information.
Table 28 RS-232 settings
Parameter Setting
Interface RS-232 Using EIA Voltage Levels
Baud Rate 9600
Parity None
Number of Data Bits 8
Number of Stop Bits 1
Hardware Flow Control Off
Terminator <CR> <LF>
Handshaking Not supported
Structure Full duplex
Local Echo Off