381 lines
11 KiB
Text
381 lines
11 KiB
Text
GENERICUPS(8)
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=============
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NAME
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----
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genericups - Driver for contact-closure UPS equipment
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NOTE
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----
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This man page only documents the specific features of the genericups
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driver. For information about the core driver, see linkman:nutupsdrv[8].
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SUPPORTED HARDWARE
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------------------
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This driver supports hardware from many different manufacturers as it only
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uses the very simplest of signaling schemes. Contact closure refers to a
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kind of interface where basic high/low signals are provided to indicate
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status. This kind of UPS can only report line power and battery status.
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This means that you will only get the essentials in ups.status: OL, OB,
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and LB. Anything else requires a smarter UPS.
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CABLING
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-------
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Cabling is different for every kind of UPS. See the table below for
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information on what is known to work with a given UPS type.
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EXTRA ARGUMENTS
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---------------
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This driver supports the following settings in the linkman:ups.conf[5]:
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upstype='type'::
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Required. Configures the driver for a specific kind of UPS. See the
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<<_ups_types,UPS Types>> section below for more information on which entries
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are available.
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mfr='string'::
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Optional. The very nature of a generic UPS driver sometimes means that
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the stock manufacturer data has no relation to the actual hardware that is
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attached. With the `mfr` setting, you can change the value that is seen by
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clients that monitor this UPS.
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model='string'::
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Optional. This is like `mfr` above, but it overrides the model string
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instead.
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serial='string'::
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Optional. This is like `mfr` above and intended to record the identification
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string of the UPS. It is titled "serial" because usually this string is
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referred to as the serial number.
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sdtime='value'::
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Optional. The driver will sleep for this many seconds after setting the
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shutdown signal. This is necessary for some hardware which requires a
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sustained level to activate the shutdown sequence.
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+
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The default behavior of the driver is to exit immediately. If this
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doesn't reliably trigger a shutdown in your UPS hardware, use this
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setting to give it more time to react.
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NOTE: very large values for +sdtime+ may create warnings from upsdrvctl if
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it gets tired of waiting for the driver to return.
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CUSTOM CONFIGURATIONS
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---------------------
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You may override the values for CP, OL, LB, and SD by defining them in
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the linkman:ups.conf[5] after the upstype setting.
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For example, to set the cable power to DTR and the low battery value to
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DCD, it would look like this:
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CP = DTR
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LB = DCD
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Recognized values for input lines are CTS, DCD, and RNG. Recognized
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values for output lines are DTR, RTS, and ST. See below for more about
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what these signals mean.
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These values may be negated for active low signals. That is, "LB=-DCD"
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recognizes a low battery condition when DCD is not held high.
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TYPE INFORMATION
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----------------
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The essence of a UPS definition in this driver is how it uses the serial
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lines that are available. These are the abbreviations you will see below:
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OL:: On line (no power failure) (opposite of OB - on battery)
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LB:: Low battery
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SD:: Shutdown load
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CP:: Cable power (must be present for cable to have valid reading)
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CTS:: Clear to Send. Received from the UPS.
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RTS:: Ready to Send. Sent by the PC.
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DCD:: Data Carrier Detect. Received from the UPS.
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RNG:: Ring indicate. Received from the UPS.
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DTR:: Data Terminal Ready. Sent by the PC.
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ST:: Send a BREAK on the transmit data line
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A "-" in front of a signal name (like -RNG) means that the indicated
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condition is signaled with an active low signal. For example, [LB=-RNG]
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means the battery is low when the ring indicate line goes low, and that
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the battery is OK when that line is held high.
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UPS TYPES
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---------
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0 = UPSonic LAN Saver 600
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[CP=DTR+RTS] [OL=-CTS] [LB=DCD] [SD=DTR]
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1 = APC Back-UPS/Back-UPS Pro/Smart-UPS with 940-0095A/C cable
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[CP=DTR] [OL=-RNG] [LB=DCD] [SD=RTS]
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2 = APC Back-UPS/Back-UPS Pro/Smart-UPS with 940-0020B cable
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[CP=RTS] [OL=-CTS] [LB=DCD] [SD=DTR+RTS]
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Type 2 has also been reported to work with the 940-0020C cable.
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3 = PowerTech Comp1000 with DTR cable power
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[CP=DTR] [OL=CTS] [LB=DCD] [SD=DTR+RTS]
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4 = Generic RUPS Model
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[CP=RTS] [OL=CTS] [LB=-DCD] [SD=-RTS]
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5 = Tripp Lite UPS with Lan2.2 interface (black 73-0844 cable)
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[CP=DTR] [OL=CTS] [LB=-DCD] [SD=DTR+RTS]
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6 = Best Patriot with INT51 cable
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[CP=DTR] [OL=CTS] [LB=-DCD] [SD=RTS]
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7 = CyberPower Power99
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Also Upsonic Power Guardian PG-500, Belkin Belkin Home Office,
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F6H350-SER, F6H500-SER, F6H650-SER
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[CP=RTS] [OL=CTS] [LB=-DCD] [SD=DTR]
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8 = Nitram Elite 500
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[CP=DTR] [OL=CTS] [LB=-DCD] [SD=???]
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9 = APC Back-UPS/Back-UPS Pro/Smart-UPS with 940-0023A cable
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[CP=none] [OL=-DCD] [LB=CTS] [SD=RTS]
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10 = Victron Lite with crack cable
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[CP=RTS] [OL=CTS] [LB=-DCD] [SD=DTR]
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11 = Powerware 3115
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[CP=DTR] [OL=-CTS] [LB=-DCD] [SD=ST]
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12 = APC Back-UPS Office with 940-0119A cable
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[CP=RTS] [OL=-CTS] [LB=DCD] [SD=DTR]
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13 = RPT Repoteck RPT-800A/RPT-162A
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[CP=DTR+RTS] [OL=DCD] [LB=-CTS] [SD=ST]
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14 = Online P-series
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[CP=DTR] [OL=DCD] [LB=-CTS] [SD=RTS]
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15 = Powerware 5119, 5125
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[CP=DTR] [OL=CTS] [LB=-DCD] [SD=ST]
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16 = Nitram Elite 2002
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[CP=DTR+RTS] [OL=CTS] [LB=-DCD] [SD=???]
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17 = PowerKinetics 9001
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[CP=DTR] [OL=CTS] [LB=-DCD] [SD=???]
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18 = TrippLite Omni 450LAN with Martin's cabling
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[CP=DTR] [OL=CTS] [LB=DCD] [SD=none]
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19 = Fideltronic Ares Series
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[CP=DTR] [OL=CTS] [LB=-DCD] [SD=RTS]
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20 = Powerware 5119 RM
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[CP=DTR] [OL=-CTS] [LB=DCD] [SD=ST]
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Check docs/cables/powerware.txt
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21 = Generic RUPS 2000 (Megatec M2501 cable)
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[CP=RTS] [OL=CTS] [LB=-DCD] [SD=RTS+DTR]
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22 = Gamatronic All models with alarm interface
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(also CyberPower SL series)
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[CP=RTS] [OL=CTS] [LB=-DCD] [SD=DTR]
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SIMILAR MODELS
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--------------
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Many different UPS companies make models with similar interfaces. The
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RUPS cable seems to be especially popular in the "power strip" variety of
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UPS found in office supply stores. If your UPS works with an entry in the
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table above, but the model or manufacturer information don't match,
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don't despair. You can fix that easily by using the mfr and model
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variables documented above in your linkman:ups.conf[5].
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TESTING COMPATIBILITY
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---------------------
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If your UPS isn't listed above, you can try going through the list until
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you find one that works. There is a lot of cable and interface reuse in
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the UPS world, and you may find a match.
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To do this, first make sure nothing important is plugged into the
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outlets on the UPS, as you may inadvertently switch it off. Definitely
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make sure that the computer you're using is not plugged into that UPS.
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Plug in something small like a lamp so you know when power is being
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supplied to the outlets.
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Now, you can either attempt to make an educated guess based on the
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documentation your manufacturer has provided (if any), or just start
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going down the list.
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Step 1
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~~~~~~
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Pick a driver to try from the list (genericups -h) and go to step 2.
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Step 2
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~~~~~~
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Start the driver with the type you want to try -
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genericups -x upstype=n /dev/port
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Let upsd sync up (watch the syslog), and then run upsc to see what it
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found. If the STATUS is right (should be OL for on line), continue to
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<<_step_3,Step 3>>, otherwise go back to step 1.
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Alternatively, you can run genericups in debug mode -
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genericups -DDDDD -x upstype=n /dev/port
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In this mode it will be running in the foreground and continuously
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display the line and battery status of the UPS.
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Step 3
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~~~~~~
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Disconnect the UPS from the wall/mains power. This is easiest if you
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have a switched outlet in between it and the wall, but you can also just
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pull the plug to test. The lamp should stay lit, and the status should
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switch to "OB". If the lamp went out or the status didn't go to "OB"
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within about 15 seconds, go to <<_step_1,Step 1>>. Otherwise, continue
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to <<_step_4,Step 4>>.
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Step 4
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~~~~~~
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At this point, we know that OL and OB work. If nothing else beyond
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this point works, you at least know what your OL/OB value should be.
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Wait for the UPS to start complaining about a low battery. Depending on
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the size of your UPS battery and the lamp's bulb, this could take
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awhile. It should start complaining audibly at some point. When this
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happens, STATUS should show "OB LB" within 15 seconds. If not, go to
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<<_step_1,Step 1>>, otherwise continue to <<_step_5,Step 5>>.
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Step 5
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~~~~~~
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So far: OL works, OB works, and LB works.
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With the UPS running on battery, run the genericups driver with the -k
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switch to shut it down.
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genericups -x upstype=n -k /dev/port
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If the UPS turns off the lamp, you're done. At this point, you have
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verified that the shutdown sequence actually does what you want. You
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can start using the genericups driver with this type number for normal
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operations.
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You should use your findings to add a section to your ups.conf.
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Here is a quick example:
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[myups]
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driver = genericups
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port = /dev/ttyS0
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upstype = 1
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Change the port and upstype values to match your system.
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NEW SUPPORT
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-----------
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If the above testing sequence fails, you will probably need to create a
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new entry to support your hardware. All UPS types are determined from the
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table in the genericups.h file in the source tree.
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On a standard 9 pin serial port, there are 6 lines that are used as the
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standard "high/low" signal levels. 4 of them are incoming (to the PC,
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from the UPS), and the other 2 are outgoing (to the UPS, from the PC).
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The other 3 are the receive/transmit lines and the ground.
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Be aware that many manufacturers remap pins within the cable. If you have
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any doubts, a quick check with a multimeter should confirm whether the
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cable is straight-through or not. Another thing to keep in mind is that
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some cables have electronics in them to do special things. Some have
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resistors and transistors on board to change behavior depending on what's
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being supplied by the PC.
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SPECIFIC MODEL NOTES
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--------------------
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These have been contributed by users of this driver.
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The Centralion CL series may power down the load if the driver starts up
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with the UPS running on battery as the default line settings contain the
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shutdown sequence. - Neil Muller
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The Tripp-Lite Internet Office 700 must be used with the black 73-0844
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cable instead of the gray 73-0743 cable. This entry should work with any
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of their models with the Lan 2.2 interface - see the sticker by the DB9
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connector on the UPS. - Stephen Brown
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Type 5 should work with the Tripp-Lite Lan 2.1 interface and the 73-0724
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cable. This was tested with the OmniSmart 675 PNP on Red Hat 7.2. - Q
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Giese
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Types 7 and 10 should both work with the PhoenixTec A1000.
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BUGS
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----
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There is no way to reliably detect a contact-closure UPS. This means the
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driver will start up happily even if no UPS is detected. It also means
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that if the connection between the UPS and computer is interrupted, you
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may not be able to sense this in software.
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Most contact-closure UPSes will not power down the load if the line power
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is present. This can create a race when using slave linkman:upsmon[8]
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systems. See the linkman:upsmon[8] man page for more information.
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The solution to both of these problems is to upgrade to a smart protocol
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UPS of some kind that allows detection and proper load cycling on command.
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SEE ALSO
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--------
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The core driver
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~~~~~~~~~~~~~~~
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linkman:nutupsdrv[8]
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Internet resources
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~~~~~~~~~~~~~~~~~~
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The NUT (Network UPS Tools) home page: http://www.networkupstools.org/
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