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The Lounge War Stories How not to install fibre links between data centres! Post 302688641 by methyl on Sunday 19th of August 2012 09:35:51 PM
Old 08-19-2012
I trust that the local fibre welding company sorted your problem. Usually costs £1,000 per half-day. The repair kit is rather expensive to own.

We had a case where BT arrived to install a 100-core telephone cable. Rather than use the vacant duct labelled for the purpose, they decided to pull their cable through a duct which was dedicated to inter-building fibre optic communications. When the cable jammed they used a van to pull the cable. They managed to knock out 13 sites by destroying multiple fibre optic cables. The cable duct lining was also destroyed in the process.

A £100,000 repair was carried out in just three days. This included excavating and repairing the damaged duct and replacing two miles of fibre optic cable). The "engineers" concerned were banned from site.

The second attempt to install the telephone cable was heavily supervised and went without incident.
 

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NEWAPC(8)						      Network UPS Tools (NUT)							 NEWAPC(8)

NAME
newapc - Driver for American Power Conversion Smart Protocol UPS equipment NOTE
This man page only documents the hardware-specific features of the newapc driver. For information about the core driver, see nutupsdrv(8). SUPPORTED HARDWARE
newapc should recognize all recent APC models that use a serial protocol at 2400 bps. This is primarily the Smart-UPS, Matrix-UPS and Back-UPS Pro lines. Older APC models may work better with the apcsmart driver. The driver attempts to support every bell and whistle of the APC reporting interface, whether or not this is strictly sensible. Some older hardware may only report a handful of variables. This is usually not a bug - they just don't support anything else. CABLING
This driver expects to see a 940-0024C cable or a clone by default. You can switch to the 940-0095B dual-mode cable support with the cable= definition described below. If your 940-0024C cable is broken or missing, use this diagram to build a clone: http://www.exploits.org/nut/library/cables/940-0024C.jpg EXTRA ARGUMENTS
This driver supports the following optional settings in the ups.conf(5): cable=940-0095B Configure the serial port for the APC 940-0095B dual-mode cable. sdtype=num Use shutdown type num, according to this table: 0: soft shutdown or powerdown, depending on battery status 1: soft shutdown followed by powerdown 2: instant power off 3: power off with grace period Modes 0 and 1 will power up the load when power returns. Modes 2 and 3 will keep the load turned off when the power returns. BUGS
Some older APC UPS models return bogus data in the status register during a front panel test. This is usually detected and discarded, but some other unexpected values have occasionally slipped through. AUTHOR
Nigel Metheringham <Nigel.Metheringham@Intechnology.co.uk> (drawing heavily on the apcsmart driver by Russell Kroll). SEE ALSO
The core driver: nutupsdrv(8) The apcsmart driver: apcsmart(8) Internet resources: The NUT (Network UPS Tools) home page: http://www.exploits.org/nut/ NUT mailing list archives and information: http://lists.exploits.org/ Tue Oct 22 2002 NEWAPC(8)
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