Sound Powered Telephones Tools 31 Flashcards

1
Q

Sound powered phone provide HARDWIRE means of communications, without a needed power source…

A

Sound powered phones can be used as a stand alone system in tunnels, high rise buildings, or ANYWHERE IC deems beneficial

-used PRIMARILY in NYC transit and under river tunnels

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2
Q

Sound Powered Phones have been issued to following units?

A

ALL BATTALIONS
HIGH RISE UNITS (E-3 AND E-39)
FIELD COMMUNICATIONS UNIT

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3
Q

Sound Powered telephone equipment consists of :

A
waterproof SPT box
wire reels 
-2 head sets
-2 1620 keys- used to gain access to SPT connectors in the NYCT system
- 2 amplifiers 
-"Y" connector
-2 jumper cords
-T handle subway key
-4 glow sticks
-screwdriver (to change amplifier battery)
laminated instruction sheet
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4
Q

Headsets have ____then handsets , and allow for ______which enables the user to perform tasks…a 1620 key is attached to headset ?

A

LESS INTERFERENCE and background noise

HANDS FREE

-both have male connectors

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5
Q

Wire reel is how many feet?

A

400

-with a 3 foot long fixed wire—HEADSET is connected to fixed wire

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6
Q

Male end has 2 pins and locking collar…female end has ?

A

2 pin receptacles

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7
Q

Y connector is used to?

A

split sound powered phone system–allows for additional communication points

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8
Q

Amplifiers increase volume of verbal transmissions but are not required to be used..

A

if amplifier is used..volume should be HIGHEST setting

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9
Q

The PTA BUTTON MUST BE PRESSED and held whenever the user wants to transmit a message…

A

once the message is COMPLETED, THE PTA BUTTON MUST BE RELEASED, or reply will not be heard (similar to apparatus radio)

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10
Q

T or F..When a member is dedicated to maintain the SPT communications link, he should be PAIRED with another member monitoring HT communications

A

TRUE

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11
Q

SPT DO NOT emit a ringing/buzzing sound when communications are initiated…

A

member monitoring SPT must CONSTANTLY LISTEN FOR MESSAGES

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12
Q

T or F…A member using a headset in a standby position (awaiting transmissions) should COVER the mouthpiece with his hand to reduce background noise

A

TRUE

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13
Q

NYCT has installed 2 types of SPT systems?

A

-street to station-particular station and street above

street to tunnel- particular UNDER RIVER TUNNEL or tubes (both directions)and a location on both sides of the tunnel, typically the nearest emergency exit

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14
Q

There is USUALLY no connection from one SPT SYSTEM to another (example: from an under river tunnel system to nearby station)..

A

HEADSETS are preferred for use throughout NYCT due to background noise

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15
Q

T or F…ALL SPT CONNECTORS WITHIN NYCT are located in locked metal boxes that are adjacent to standpipe siamese or outlets

A

TRUE

-boxes containing SPT jacks required a 1620 KEY to open

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16
Q

Where are SPT connectors located at STREET LEVEL?

A

NEAR the Standpipe siamese, with a sign reading STREET TO STATION COMMUNICATIONS

-standpipe siamese and spt connectors are not always found closest to subway entrances…they may be located a few HUNDRED FEET away from the station , in either direction of train travel…they also may be found in the middle of large roadways (houston street/grand concourse/queens blvd)

17
Q

SPTs located on MEZZANINE OR PLATFORM LEVEL are located ?

A

in RED METAL BOXES inside STAINLESS STEEL STANDPIPE CABINETS

  • standpipe cabinets identified by sign -white hose on red background
  • combination Standpipe/SPT boxes may be located on columns or station wall….if there is no SPT outlet located in the standpipe box, look in surrounding area for small individual cabinet
18
Q

Street to TUNNEL systems …

A

usually include specific PAIR of tubes..example: members in Brooklyn bound-Clark st. tube can speak to members in Manhattan bound- clark street tube…..BUT NOT IN COMPLETELY DIFFERENT TUBE

  • SPT CONNECTOR typically located at the STREET LEVEL SIAMESE CONNECTIONS CLOSEST TO THE EMERGENCY EXITS ON BOTH SIDE OF THE UNDER RIVER TUBES
  • IN THE UNDER RIVER TUBES- SPT connectors are found at STANDPIPE OUTLETS: approx. 200 feet apart….transit authority will identify these outlets by NUMBER (GOOD INDICATION of location of incident)…Members operating in the tube should NOTIFY IC OF STANDPIPE OUTLET NUMBER
19
Q

ONLY Under river tunnels that don’t have sound powered phones?

A

JORALEMON STREET TUNNEL

20
Q

What is the required maintenance for SPT ?

A

change the 9 volt battery in the amplifier SEMI ANNUALLY

-Amplifier not working - contact R&D- repair and replacement