# NHS_SER(8)

## NAME

nhs_ser - Driver for NHS Nobreaks, senoidal line, with serial port

## SYNOPSIS

nhs_ser -h

nhs_ser -a UPS_NAME [OPTIONS]

Note | This man page only documents the hardware-specific features of the nhs_ser driver. For information about the core driver, see nutupsdrv(8).

## SUPPORTED HARDWARE

nhs_ser supports numerous UPS models made by NHS Sistemas Eletronicos LTDA and marketed in Brazil. They feature a serial port and a binary wire protocol.

Note | Currently this driver only builds on Linux. This is expected to change in future revisions of the code.

## EXTRA ARGUMENTS

This driver also supports the following optional settings:

baud=num

  Set the value of serial port baud rate (default: 2400)

ah=num

  Battery discharge capacity in Ampere/hour.

va=num

  Nobreak NOMINAL POWER in VA.

pf=num

  Power Factor to use in calculations of battery time (default: 0.90).

vin_low_warn_perc=num

  Voltage In Percentage to calculate warning low level (default: 2.00).

vin_low_crit_perc=num

  Voltage In Percentage to calculate critical low level (default: 2.00).

vin_high_warn_perc=num

  Voltage In Percentage to calculate warning high level (default: 2.00).

vin_high_crit_perc=num

  Voltage In Percentage to calculate critical high level (default: 2.00).

numbatteries=num

  Num Batteries (override value from nobreak).

vbat=num

  Battery Voltage (default: 12.00).

debug_pkt_raw

  Optional flag to enable debug logging of packet bytes.

debug_pkt_data

  Optional flag to enable debug logging of data packet decoding.

debug_pkt_hwinfo

  Optional flag to enable debug logging of hwinfo packet decoding.

## AUTHORS

Lucas Willian Bocchi <lucas@lucas.inf.br>

## SEE ALSO

### The core driver:

nutupsdrv(8)

### Internet resources:

The NUT (Network UPS Tools) home page: https://www.networkupstools.org/historic/v2.8.5/