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run if there is special equipment in the co you're testing in. If you are
testing a non-locally switched line with the SSA request, channel tests must
be run separately with this request. Chan may also be used to run channel
isolation tests on switched lines from the tv or stv mask, but these tests are
included when you do a full or loop on a switched line.
Change: Change status information
Change allows you to change cable, pair or comment information that is
displayed without having to request a test or any other type of information.
the permanent line record information is not changed. To request a change,
enter "change" in the req field of the tv and enter the change of information.
Chome: Home totalizer on a coin telephone
Chome attempts to return a totalizer to the starting position (home) for
counting coins. The totalizer counts the coins and sends a tone back to the
co for every 5 cents deposited. If it is not homed, coins can't be deposited.
A chome request tells you whether the totalizer was homed, how many tones were
sent to the co, and the current that was used to home the totalizer. A line
must already be accessed to request a chome. Chome is often used when a
repair person is trying to fix a coin telephone.
Co: Test the central office equipment
Co initiates a series of tests on the subscriber's line circuit. Co can be
requested using either a no-test or an MDF trunk. A no-test access connects
you to the entire loop but a co request tests only the inside portion. An MDF
access is only connected to the inside portion of the loop. The outside
portion is physically disconnected. Use a no-test access when you are fairly
sure the trouble is inside the central office. Use a co on an MDF access when
you are not sure where the trouble is.
Coin: Test a coin telephone set
Coin initiates a full series of tests on a telephone line. The station set,
the totalizer, the coin relay, the loop and the co equipment are checked. If
the coin request finds something wrong with either the totalizer or the relay,
it stops testing and tells you the trouble is in the set. If it finds nothing
wrong, it runs the full entries of tests. Coin may be used when a repair
person is trying to fix a coin telephone. If a coin phone is newly installed,
coin will check the set even though there is no line record.
Cret: Operate coin relay to return coins
Cret attempts to return any coins that may be lodged in the hopper of a coin
telephone set. It operates the coin relay so that it will return the coins.
It tries to return them 3 times before giving up. If it is successful, it
also checks the speed of the relay. It does not check the totalizer or the
rest of the line. You should have access to the line before you request a
cret. You will use cret primarily when you are talking to a repair person who
is trying to repair coin telephone.
Cset: Check totalizer and relay in coinset
Cset checks the totalizer and the coin relay in a coin telephone set. The
totalizer is the mechanism in the phone that counts deposited coins and sends
a tone back to the co for every 5 cents that is deposited. The relay is the
mechanism that either returns or collects the coins that are deposited. Cset
does not check the co or loop parts of the line. Cset can be used when you
are talking to a repair person who is fixing a coin telephone.
Dial: Test a subscriber's rotary dial
Dial checks the subscriber's rotary dial. You must be in contact with the
subscriber,either over a callback path or over a ddd line. For the dial
request to work correctly, tell the subscriber to dial a "0" after hearing
brief dial tone. The results of a dial request tell you whether the dial is
okay or not, whether the dial speed is okay and what the speed is, and whether
the break is okay and what the break is. Use the dial request when you
suspect a problem with the telephone set. The trouble report could be "Can't
call out' or 'Gets wrong numbers", for example.
Dtout: Test a pbx line circuit
Dtout initiates a series of tests on a pbx line circuit. Dtout must be
requested using an MDF trunk. It is used to draw dial tone and check the
arrangement of the pbx line circuit. Use dtout when you need to check the
condition of special service circuits that do not use central office switches.
Full: Test the entire telephone line
Full starts a series of tests that do an extensive analysis of the entire
line. This includes both the inside and outside portions. Many individual
tests are run and the most important results are displayed in the summary
message. Outside, MLT checks for AC and DC faults. Inside, it checks the line
circuit and dial tone. The results may also include many other types of
information about the line. You might request full line test when you first
access a line or when you need to know a lot about a line.
Grm: Get fast ground resistance measurement
Grm gives you a quick measurement of the DC resistance of the ground path from
the strap to the test hardware. Before you do a grm, have the repair person
strap the tip and ring wires to ground. If this isn't done, grm will give you
incorrect values. The line must be accessed before you do a grm request. You
can use grm when you are talking to a repair person who is fixing a coinset.
The resistance values obtained from a grm can be compared to old resistance
values that are stored inside each coinset.