AT&T System 25 User Manual

Page 276

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MAINTENANCE

Special Port Circuit Options for Stations and Trunks

Tables 4-E and 4-F provide the special port circuit options that are administered

in the system. System defaults and associated action codes applicable to the
various port CPS are also shown. Procedures are available in the Administration

Manual for logging onto the system and accessing the information shown in

Table 4-E. The administrable items shown in Table 4-E should not be changed
unless CO and maintenance personnel agree that an item needs changing.

Table 4-E.

Station/Trunk/Special Port Circuit Pack Options

CIRCUIT PACK-OPTIONS

(See Applicable Actions-Table 4-F)

DEFAULT

ACTION

DESCRIPTION

DATA

[500]

CO Disconnect Time (in 20-msec
increments)

( 0 - 2 5 4 0 ) M s e c s

32

End-to-End Signaling Tone Timing
(in 20-msec increments)

33

FOR TN742 AND ZTN78 ONLY:
FOR ALL OTHER BOARDS:

(20-2540) Msecs
(0-2540) Msecs

[ 3 4 0 ]
[ 6 0 ]

End-to-End Signaling Pause Timing
(in 20-msec increments)

34

[60]

[ ]

FOR TN742 AND ZTN78 ONLY:
FOR ALL OTHER BOARDS:

(20-2540) Msecs
(0-2540) Msecs

[100]

Hybrid Balance

1- Resistor
0 - Resistor/Capacitor

35

*

1- Gain = 3db

0- Gain = 0db

[0]

36

G a i n

0 - Type I Compatible

1- Type V

2- Type I

[ 2 ]

37

E&M Signaling Type

[300]

Answer Supervision Delay Timing (0-51 00) Msecs

38

* Default depends on CP type. Trunk ports are defaulted to 0 (RC termination)

while station ports are defaulted to 1 (R termination).

4-99

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