Chapter 14

Question 1

where are some locations you could expect to see emergency call systems

Answer 1

in public areas both indoors and outdoors:

parks, elevators, parking garages…..

Question 2

*how far must intercom be from sources of EMI

Answer 2

18 inches

Question 3

*what are two types of resi intercoms

Answer 3

indoor and outdoor

Question 4

*door control uses a push button to control a _____

to release of a locking door

Answer 4

remote relay

Question 5

substation

Answer 5

can only communicate with the master station

Question 6

what are the two types of substations for residential intercoms

Answer 6

indoor substations

outdoor substations - vandal resistant

Question 7

describe station

Answer 7

remote communicating device connected to a control unit

Question 8

describe control unit

Answer 8

control stations connected to it and creates communications path between stations

Question 9

describe the two basic types of nurse call systems

Answer 9

visual - light up at master station

audio visual - lights and sound

Question 10

how is cabling selected for nurse call systems

Answer 10

follow manufacture wiring instructions

Question 11

when installing a room station you must stay 18 inches away from what items

Answer 11

EMI
-dimmers
-florescent lighting
-high voltage
-security
telephone

Question 12

how is wiring for an intercom substation selected

Answer 12

manufacture specific wiring. cables are selected based on system requirements

Question 13

describe the differences between loop and star wiring configurations

Answer 13

loop is a daisy chain configuration unlike star which is individually run

Question 14

what is the purpose of an area of refuge

Answer 14

allows a handicap person to communicate and be located by rescuer workers so they don’t have to risk the stairs in an emergency situation

Question 15

can you use the same rough in bracket for master station as a substation

Answer 15

no

Question 16

*what are the wiring requirements for nurse call

Answer 16

check manufacture instruction

Question 17

*three types of wiring methods for intercom

Answer 17

star
loop
Bus

Question 18

describe master station

Answer 18

able to communicate with other master stations and substations

Question 19

what are 4 intercom components

Answer 19

control unit
station
master station
substation

Question 20

where are some locations where a high power intercom would be necessary

Answer 20

in high noise areas: factory, manufacturing, ….

Question 21

Door control uses a push button to control a ______ to release a locking door.

Answer 21

remote relay

Question 22

what features do bathroom emergency stations have that other emergency stations do not.

Answer 22

longer pull string - 4 inches from floor

Question 23

how is the operation of a telephone entry system that does not require a telephone line different from one that does?

Answer 23

uses relays instead of the telephone line

Question 24

what are 3 additional features residential intercom systems can offer?

Answer 24

music
video camera
door release

Question 25

how do commercial master stations differ from residential master stations

Answer 25

commercial have more than one master station on the system and the master stations can communicate with each other

Question 26

what wiring is required for a telephone entry system?

Answer 26

depends on manufacture specification and application of device