Starplus Triad Xts Installation Digital Key Telephone System Instructions Guide

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Chapter 2 - Features and Operation
T-1 Signaling Type
Description
The T-1 trunk card provides theXTSDigital Systems with the ability to connect to digital T-1
trunk circuits. The T-1 trunk card supports either the standard D4 framing format with
Alternate Mark Inversion (AMI) or Extended Superframe (ESF-B8ZS) format coding. The
system can support TIE, loop start, ground start, and DID signaling per channel. The T-1 trunk
card fits into one card slot.
The T-1 signaling protocols provided are: Loop Start, Ground Start, TIE. TheXTSDigital
Systems use the TIE signaling simulation from the Central Office to add the additional
protocol of Direct Inward Dial (DID).
T-1 trunking provides services called Automatic Number Identification (ANI) and Dialed
Number Identification Service (DNIS). The T-1 feature supports both of these services. TheXTS
Digital Systems support ANI, DNIS, or an ANI and DNIS combination on a per channel (line)
basis.
Programming Steps
1. PressFLASHand dial[40]. The following message displays:
2. Enter a valid number for the range of lines being programmed. If only one line is being
programmed, enter that number twice (001 001).
3. Press HOLD to save the entry. A confirmation tone sounds and the display updates.
Flexible Button #19 (Page A) is lit.
4. Press the PAGE B flexible button (Button #20). The following message displays:
XXX-XXX = CO Line Range
5. Press the T-1 SIGNALING flexible button(FLASH 40, Page B, Button #1). The following
message displays:
CO LINE AT TRIBUTES
SELECTACOLINERANGE
If HOLD is pressed without entering a CO range, ALL CO lines are selected.
XXX - XXX PAGE B
ENTER BUTTON NUMBER
T-1 SIGNAL TYPE 0-7
LOOP START 
						

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6. Enter a valid number (0-7) on the dial pad that corresponds to one of the following types:
7. Press the HOLD button. A confirmation tone sounds and the display updates.
DEFAULT…T-1 Signal Type option is Loop Start.
T-1RingbackOption
Description
The T-1 Ringback option supports T-1 channels which require ringback tone to be
transmitted to the caller while a call is ringing. Some carriers require the system to generate
the ringback tone, this feature allows the system to provide this option. Ringback tone is not
used with the DISA, TIE Line, or DID signal options.
Programming Steps
1. Press the RINGBACK OPTION flexible button(FLASH 40, Page B, Button #2).The
following message displays:
Table 2-22: T-1 Signaling Options
Signaling Option Description
[0] = None None is used for fractional T-1 spans. All unused channels in a
fractional T-1 span should be marked as None.
[1] = Data (future)
[2] = Loop Start Disconnect supervision is not supported for Loop Start
emulation of T-1 circuits.
[3] = Ground Start Software supports disconnect supervision for ground start
emulation of T-1 circuits.
[4] = DID The DID signaling (wink, delay, and immediate) is controlled in
Flash 45. DID digits from the carrier are routed via the DID
table. To program the DID table, refer to Flash 44
programming on
page 2-99andtoFlash43programmingonpage 2-104.
[5] = TIE This is used for point-to-point T-1 applications.
[6] = TIE/DNIS The DNIS signaling (wink, delay, and immediate) is controlled
in Flash 45. DNIS digits from the carrier are routed via the DID
table. To program the DID table, refer to Flash 44
programming on
page 2-99andtoFlash43programmingonpage 2-104.
[7] = TIE/ANI The ANI number is treated and routed as an ICLID number. It
follows the Flash 43 programming (
page 2-104)forrouting
information and Flash 55 programming (page 2-200)for
Name/Number Translation.
T-1 RINGBACK 0-1
ENABLE 
						

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2. Enter a 0 or 1 on the dial pad to enable/disable this feature.
[0] = Disabled
[1] = Enabled
3. Press the HOLD button. A confirmation tone sounds and the display updates.
DEFAULT…T-1 Ringback option is enabled.
T-1 Dial Tone Option
Description
AnoptionhasbeenaddedtosupportT-1channelswhichdonotsupplydialtone.Some
carriers require the system to generate dial tone to its users, while other carriers do not.
Programming Steps
1. Press the T-1 DIAL TONE flexible button(FLASH 40, Page B, Button #3). The following
message displays:
2. Enter a 0 or 1 on the dial pad to enable/disable this feature.
[0] = Disabled
[1] = Enabled
3. Press the HOLD button to save the entry. A confirmation tone sounds and the display
updates.
DEFAULT…Dial Tone option is disabled.
Wink Timer
Description
When Wink signaling is programmed, this timer determines how long theXTSsystem keeps
the T-1 TIE Line circuit reversed before any DTMF digits are sent from the Central Office. This
option allows the installer a method to adjust the Wink Signal on a per CO Line basis. The
Wink Signal can be used on DID and TIE-type trunks.
Programming Steps
1. PressFLASHand dial[40]. The following message displays:
T-1 DIAL TONE 0-1
DISABLED
CO LINE AT TRIBUTES
SELECTACOLINERANGE 
						

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2. Enter a valid number for the range of lines being programmed. If only one line is being
programmed, enter that number twice (001 001).
3. Press Button #21 to select Page C. The display updates. The following message displays to
indicate current programming of that line or group of lines:
XXX-XXX = CO Line Range
4. Press the WINK TIMER Button(FLASH 40, Page C, Button #3)intheflexiblebuttonfield.
The following message displays:
5. Enter a valid number which corresponds to 100-290ms.
6. Press HOLD button to save entry. A confirmation tone sounds and the display updates.
DEFAULT…Wink Timer is set for 140ms.
T-1 Collect Timer
Description
The T-1 Collect Timer is only used when the T-1 Incoming Signaling is set for dial pulse. This is
a time-out timer that looks at the incoming digits one digit at a time.
Ifaseconddigitisn’t detected within the 150ms, the telephone system attempts to process
that digit. If a second digit is detected, the system waits 150ms to see if a third digit is
received. Otherwise, the telephone system attempts to process the two digits already
received. This process continues until no additional digits are received and the time-out
timer expires.
The T-1 Collect Timer setting is variable from 100ms to 2.0 seconds.
Programming Steps
1. Press the T-1 COLLECT TIMER flexible button(FLASH 40, Page C, Button #10).The
following message is shown on the display phone:
2. Enter a valid number on the dial pad which corresponds to 010–200 (100 ms to
2.0 seconds).
If HOLD is pressed without entering a CO range, ALL CO lines are selected.
XXX - XXX PAGE C
ENTER BUTTON NUMBER
WINK TIMER 100-290
140
T1 COLLECT TIMER 010-200
015 
						

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3. Press the HOLD button to save the entry. A confirmation tone sounds and the display
updates.
DEFAULT…T-1 Collect Timer is set for 150ms.
T-1 Incoming Signaling
Description
The T-1 Incoming Signaling option allows the installer to determine the type of incoming
signaling to be used by all T-1 trunks in the system.
Programming Steps
There are two types of T-1 Signaling available for T-1 Trunks. To change the type of signaling:
1. Press the T1 INCOMING SIGNALING flexible button(FLASH 41, Button #6)for
programming the type of T-1 signaling desired. The following message is shown on the
display phone:
2. Enter a 0 or 1 on the dial pad.
[0] = Dial Pulse
[1] = DTMF
3. Press the HOLD button to save the entry. A confirmation tone sounds and the display
updates.
DEFAULT…T-1 Signaling type is set for DTMF.
T- 1 F r a m i n g Ty p e
Description
T-1 board 8031-31 will work with D4SF-AMI or ESF-B8ZS framing. The T-1 service should be
ordered from the serving company.
Programming Steps
There are two types of T-1 Framing Types available. To change the framing type:
1. Press the T1 FRAMING TYPE flexible button(FLASH 41, Button #7)for programming the
type of T-1 framing desired. The following message is shown on the display phone:
2. Enter a 0 or 1 on the dial pad.
[0] = D4SF-AMI
[1] = ESF-B8ZS
T1 INC SIGNAL 0-1
DTMF
T1 FRAMING TYPE 0-1
D4SF-AMI 
						

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Chapter 2 - Features and Operation
3. Press the HOLD button to save the entry. A confirmation tone sounds and the display
updates.
DEFAULT…T-1 Framing type is set for D4SF-AMI.
Conditions
»TheT-1boardmusthavefirmwareVersion1.0Gorhigher.
T-1/ISDN Alarm Programming
Description
The T-1 Trunk card and the system software provide tools to help detect and isolate problems
which may occur with the T-1 circuit. There are six LEDs mounted on the outside edge of the
T-1 Trunk card which either light or flash to indicate a variety of conditions on the T-1 circuit.
The Central Office Maintenance Center can send a command to place the CSU into Line Loop
Back mode. If there is no CSU, the T-1 Trunk card responds to the Line Loop Back command.
The buttons on the digital telephone are defined as shown below when entering the T-1
Alarm programming area:
Programming Steps
If the system is in the programming mode, continue using the program codes. If starting to
program here, enter the programming mode.
1. PressFLASHand dial[47]. The following message displays:
2. Press a button (1-7) that represents the desired alarm setting.

						

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Chapter 2 - Features and Operation
Programming Steps
1. Press the BLUE ALARM flexible button(FLASH 47, Button #2).Button#2andButton#11
LEDs are lit steady. The following message displays:
2. Enter a 0 or 1 on the dial pad to enable/disable this feature.
[0] = Disabled
[1] = Enabled
3. Press the HOLD button to save the entry. A confirmation tone sounds and the display
updates.
4. Continue programming the Blue Alarm parameters using the steps provided earlier in
this section for Clearing the alarm, Minor alarm, Major alarm, Time Period and Attendant
display.
DEFAULT…Blue Alarm is enabled for all T-1 Trunks.
Ye l l ow A l a r m
Description
The Yellow Alarm is recorded when the T-1 Trunk card detects a yellow Carrier Failure Alarm
(CFA) signal from the distant end for a minimum 335 ms. The Yellow Alarm is transmitted by
the remote system because of a RED alarm condition there.
Programming Steps
1. Press the YELLOW flexible button(FLASH 47, Button #3).Button#3andButton#11LEDs
are lit steady. The following message displays:
2. Enter a 0 or 1 on the dial pad to enable/disable this feature.
[0] = Disabled
[1] = Enabled
3. Press HOLD button to save entry. A confirmation tone sounds and the display updates.
4. Continue programming the Yellow Alarm parameters using steps provided in this section
for Clearing the alarm, Minor alarm, Major alarm, Time Period and Attendant display.
DEFAULT…Yellow Alarm is enabled for all T-1 Trunks.
BLUE ALARM 0-1
ENABLED
YELLOW ALARM 0-1
ENABLED 
						

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Red Alarm
Description
The Red Alarm is declared by the T-1 Trunk card when a loss of signal is detected, or an Alarm
Indication Signal is received. A Red Alarm can be caused by a loss of carrier signal, a receive
out of frame sync condition, or an alarm indication signal.
Programming Steps
1. Press the RED ALARM flexible button(FLASH 47, Button #4). Button #4 and Button #11
LEDs are lit steady. The following message displays:
2. Enter a 0 or 1 on the dial pad to enable/disable this feature.
[0] = Disabled
[1] = Enabled
3. Press HOLD button to save entry. A confirmation tone sounds and the display updates.
4. Continue programming Red Alarm parameters using the steps provided in this section
for Clearing the alarm, Minor alarm, Major alarm, Time Period and Attendant display.
DEFAULT…Red Alarm is enabled for all T-1 trunks.
Bipolar Variations Alarm
Description
Excessive Bipolar Violations (BPV) are declared when a T-1 Trunk card detects a BPV rate in
excess of 1x10+6errors in 1000 seconds.
Programming Steps
1. Press the BIPOLAR VARIATIONS flexible button(FLASH 47, Button #5).Button#5and
Button #11 LEDs are lit steady. The following message displays:
2. Enter a 0 or 1 on the dial pad to enable/disable this feature.
[0] = Disabled
[1] = Enabled
3. Press HOLD to save the entry. A confirmation tone sounds and the display updates.
4. Continue to program Bipolar Variations Alarm parameters using the steps in this section
for Clearing the alarm, Minor alarm, Major alarm, Time Period, and Attendant display.
DEFAULT…Bipolar Variations are enabled at all T-1 trunks.
RED ALARM 0-1
ENABLED
This condition can exist if the Telco is providing B8ZS frame coding and the system
is programmed for AMI.
BIPOLAR VARIATIONS 0-1
ENABLED 
						

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Frame Slip Alarm
Description
When a Frame Slip or change in frame alignment is detected, the T-1 Trunk card freezes all
incoming signaling states and realigns the receive buffer. If all alarm conditions are clear,
signaling states are released and normal operation resumes.
Programming Steps
1. Press FRAME SLIP flexible button(FLASH 47, Button #6).Button#6andButton#11LEDs
are lit steady. The following message displays:
2. Enter a 0 or 1 on the dial pad to enable/disable this feature.
[0] = Disabled
[1] = Enabled
3. Press HOLD button to save entry. A confirmation tone sounds and the display updates.
4. Continue to program the Frame Slip Alarm parameters using steps provided in this
section for Clearing the alarm, Minor alarm, Major alarm, Time Period and Attendant
display.
DEFAULT…Frame Slip is enabled on T-1 trunks.
Data Errors Alarm
Description
Data errors are illegal bit formations. If the Data Errors Alarm is enabled, an error message is
sent to the attendant when the data error limit is reached.
Programming Steps
1. Press the DATA ERRORS flexible button(FLASH 47, Button #7). Button #7 and Button #11
LEDs are lit steady. The following message displays:
2. Enter a 0 or 1 on the dial pad to enable/disable this feature.
[0] = Disabled
[1] = Enabled
3. Press HOLD button to save entry. A confirmation tone sounds and the display updates.
4. Continue to program Data Error Alarm parameters using steps provided in this section for
Clearing the alarm, Minor alarm, Major alarm, Time Period and Attendant display.
DEFAULT…Data Errors Alarm is enabled for all T-1 Trunks.
SLIP 0-1
ENABLED
DATA ERRORS 0-1
ENABLED