Pros and Cons of DB9 D-Subminiature Connectors

1
Pros and Cons of DB9
D-Subminiature Connectors

• Serial communication used to be one of the major
  ways to connect peripherals like scanners,
  joysticks and printers to PCs for several
  years. One of the most commonly used cable
  connector for this type of communication was
  9-pin D-Subminiature connector which is also
  known as DB9 cable or a DE-9 cable.
• DB9 serial cables has nine pins which were enough
  to carry data in the series. But it has certain
  drawbacks which made their usage less frequent.
  People started to prefer USB cables over
  DB9 cables. However, if you shop for
  electronics, you will still find several
  devices having DB9 cables or ports on them. Let
  us check out some of the advantages and
  disadvantages of DB9 D Subminiature
  Connectors.
• Advantages of DB9 Subminiature Connectors
• DB9 connectors have several advantages. You can
  easily customize them with 9 individual pins to
  carry serial data. Although the speed of these
  connectors is low as compared to other
  standards like USB, the length of these
  cables is quite long. For eg, USB, has a
  five-meter length limit, but RS-232, which
  is the most commonly used standard for
  serial data doesnt have a particularly
  defined

2
length limit. RS-422 has been used at length
which is hundreds of meters long with special
equipment. In case you have an old device having
DB9 connectors on it, you will find several
options for conversions. Converters from
other standards like USB, Ethernet etc also
enable you to make use of your device on
any computer. Drawbacks of DB9 D-Subminiature
Connectors As the connectors are large, it
becomes difficult to connect and disconnect
them in small spaces. The pins of these
cables are usually exposed so there are
more chances for them to get damaged
or break. Although you can mate the connector
without any thumbscrew hardware, there are less
chances that it will hold on to the equipment. On
the other hand, if you use thumbscrews, the
connector will take a long time to get plugged
and unplugged. And as mentioned before,
serial communication is a slow and old way of
exchanging data. So the speed is quite slow when
there are cables of long length. This also causes
breaks in communication and makes the
software of PC freeze. Due to such
issues, other standards gained more popularity
over DB9 cables. But this in no way means
that DB9 connectors arent used. If you use
right angle adapters, they can help you
solve the tight space issue without causing
any damage to the connector. You can attach
3
the connectors with D-Subminiature plug and jack
covers which can protect pins from getting
damaged when not being used. Before you make
a buy for DB9 connectors, make sure
you precisely know what your needs are. If
there is a smart alternative for DB9 cables, you
can go for that as well!

• See More Products Here
• https//www.sfcable.com/
• https//www.sfcable.com/network-ethernet-cables.ht
  ml
• https//www.sfcable.com/hdmi-cables.html
• https//www.sfcable.com/db9-serial-cable.html
• https//www.sfcable.com/bulk-network-cable.html
• https//www.sfcable.com/cat5e-ethernet-cables.html
  
• https//www.sfcable.com/cat6-ethernet-cables.html
• https//www.sfcable.com/cat6a-ethernet-cables.html