Liebert PDUTM 14.2.11 RS-232 Interface Parameters, Maintenance Bypass, Fuseless Design, Options

Specifications

14.2.11 RS-232 Interface Parameters

The service terminal interface parameters are the following settings and cannot be changed.

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

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.

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