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2016 Master > PHT 16 > Flashcards

PHT 16 Flashcards

1
Q

Account passes but may alert tech to issues

A

Pass with Warnings

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2
Q

Account passes due to NWT event on account

A

Pass with Overides

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3
Q

What 4 graphs on on PHT

A

MOCA, FLUX GRAPH, LIVE SPECTRA GRAPH, US and DS docsis graph

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4
Q

PHT has a pass/fail based on the

A

premise devices

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5
Q

Upstream TX upper fail

A

> 54dBmV

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6
Q

Upstream TX lower fail

A

<25dBmV

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7
Q

Downstream RX upper fail

A

> 12dBmV

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8
Q

Downstream SNR single threshold fail

A

<33dB

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9
Q

MoCA PHY Rate single threshold fail

A

< 200 Mbps (XG to XI, XB to Xi, XG to XB devices only; Xi to Xi or RNG150 to RNG150 not in scope)

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10
Q

FLUX ICFR single threshold fail

A

> = 3 dB ICFR

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11
Q

(UET)

A

Upstream Extended Transmit

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12
Q

A growing number of devices in our network have Upstream Extended Transmit (UET) capabilities and can transmit___higher than the initial DOCSIS 3.0 specification allowed

A

3 dBmV

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13
Q

the level a device is transmitting at, or would need to transmit at in order to reach the CMTS at the proper input level

A

Actual US Tx

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14
Q

A registration state of 1,2,3 or 5 on any channel indicates that a device is not utilizing those channels and is in

A

partial bonding mode

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15
Q

If a Device is transmitting at maximum power and still cannot reach the CMTS at the requested input level, generally 0 dBmV, it is in a state called

A

compression

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16
Q

DOCSIS 3.0 devices have the ability to send and receive data transmissions across multiple US and DS channels, this is called

A

“bonding”

17
Q

(FBC)

A

Full Band Capture

18
Q

Downstream RX lower fail

A

less than -10dBmV

19
Q

4 ways to access customer in PHT

A

MAC Address, Home Address, Account #, Phone #

20
Q

PHT results fall into 4 possible results:

A

Pass• Pass W/ Warnings • Pass W/Overrides • FAIL

21
Q

What’s an Unrecognizable device (PHT)

PHT pass with warning examples

A

active device on an account (account at least 3 days old) that has been unresponsive for longer than 24 hours

22
Q

what is incomplete DP3 Data – (PHT)

PHT pass with warning examples

A

One or more devices on the account did not return all requested data needed for PHT

poll for data is missing data (could result from poor cell connectivity or disruption during test)

23
Q

What is Service Call Failure (PHT)

PHT pass with warning examples

A

A call to any service used to gather PHT data failed for the account tested

failure to call data sources (cell connectivity, VPN drop, tools outage)

24
Q

What is PHT Pass with override

A

The account tested must fail and it must be listed as an affected account for an ongoing NWT event that matches the exact failure reason
(US TX, DS SNR, Ds Rx, spectra suckout, spectra wave)

USSNR does not trigger a Pass w/Override condition

25
Q

maximum US TX level for a DOCSIS device without UET using 1 channel

A

57dBmv

26
Q

maximum US TX level for a DOCSIS device without UET using 2 channels

A

54dBmV

27
Q

maximum US TX level for a DOCSIS device without UET using 3-4 channels

A

51dBmV

28
Q

maximum US TX level for a DOCSIS device with UET using 1 channel

A

60dBmV

29
Q

maximum US TX level for a DOCSIS device with UET using 2 channels

A

57 dBmV

30
Q

maximum US TX level for a DOCSIS device with UET using 3-4 channels

A

54dBmV

31
Q

What does PHT stand for

A

Premise Health Test

32
Q

PHT Metrics and Thresholds Partial bonding

A

Registration state less than or greater than 4

Downstream state less than or greater than1

33
Q

PHT Metrics and Thresholds

Spectra

A

Any impairment, other than (ACP)

34
Q

What is a Missing PHY rate (pht)

PHT pass with warning examples

A

call from X-Ray failed to return PHY rates for all devices

2016 Master (109 decks)

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