CABLES and MODEMS Flashcards
What is used to terminate serial/RS-232 cables?
DB-9
What are serial cables often associated with today?
Dial-up modems.
Dial-up modems are associated with what connector?
DB-9
Dial-up modems and legacy network equipment are associated with what cable type?
serial cables (coaxial)
Name three connectors associated with coaxial cables.
BNC, DB-9, F-tip
BNC connectors are attached to what kind of cable?
coaxial
What are BNC coaxial cables typically used for today?
DS3 WANs
DS3 WANs often what use kind of connector?
BNC
What would you connect to a cable modem?
RG-6 with F-tip
RG-6 has replaced what type of cable?
RG-59
What is RG-59 used for today usually?
Security cameras, patch panels. Very short range.
DB-9 connects with what modem?
Dial-up
F-tip connectors are used on what two cable types?
RG-6, RG-59
RS-232 uses what connector?
DB-9
RS-232 is synonymous with what cable type?
serial cable
___ is limited to 56kbps per second, making rather slow.
Dial-up
F-tip connectors are associated with what modem?
Cable
Cable TV uses what connector and cable type?
F-tip, RG-6
What cable and connector would be used for a patch panel or CCTV?
RG-59, F-tip
DSL uses what kind of cable?
twisted pair
DSL uses what kind of connector?
RJ-11
RJ-11 is associated with what kind of modem?
DSL modem
What 3 kinds of connectors are associated with fiber-optic connections?
SC - subscriber connector
LC- lucent connector
ST- straight-tip connector
What are the characteristics of LC, SC, and ST fiber optic connectors?
LC- small, saves space
SC- simple design, clips in place
ST- secure design, twists in place
F-tip connectors are also known as ___ connectors.
threaded
If you’re patching a digital cable connection from a cable modem to nearby devices you may be using what kind of cable?
RG-59
Category ___ Ethernet cable supports data rates up to 100 Mbps.
5
Category ___ Ethernet cable supports data rates up to 1 Gbps.
5e
Category ___ Ethernet cable supports data rates up to 10 Gbps over a maximum of 55m.
6
___ cable supports data rates up to 1 Gbps up to 100m.
Cat5e
___ supports data rates up to 10 Gbps up to 55 meters.
Cat6
___ cable supports data rates up to 100 Mbps up to 100m.
Cat5
What is the maximum length of an Ethernet cable?
100m (~328ft)
What two cables are used for gigabit Ethernet?
Cat 5e Cat 6 (faster than 5e if <55m, more expensive)
___ are solid cabling used for “permanent” links, such as cable running through walls.
Drop cables
___ fiber carries only one light path, typically sourced by a laser. Longer range but expensive.
Single-mode
___ carries multiple light paths and is sourced by an LED. Shorter range, but cheaper.
Multimode
While there are many types of serial cables, the term “serial cable” usually refers to a specific type of cable that confirms to the ___ specification. Serial cables are most often used to connect a laptop to the console or management port of a network device.
RS-232
What is the difference between DSL, Cable, ISDN, and Dial-up modem internet connections?
DSL: Uses RJ-11 tipped TP cables. Terminated at a local switching center, which connects to central office.
Cable: Uses F-tip RG-6 cables. Uses coax cables designed to transmit video and audio. Very fast. Bidirectional?
Dial-up: Uses DB-9 tipped RS-232(serial) cables. Must dial a number for it to work.
IDSN:
What is the difference between DSL, dial-up, and ISDN?
ISDN and dial-up require a number to be dialed unlike DSL, which is “always on”.
Dial-up unlike ISDN and DSL is analogue and not digital.
What kind of signal is Dial-up?
analog
What kind of signal must dial-up be converted to in order for it to provide internet?
digital
