Vodavi Starplus Sts Key Systems Programming Operation Manual

							T-1 Alarm Programming2-261
Features and Operation
T-1 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. Press FLASH and dial [47]. The following message displays:
2. Press a button (1-7) that represents the desired alarm setting.

These settings govern all T-1 Trunk cards installed in the system.

The LED lights steady when the button is pressed.

Once the desired alarm is selected, the following conditions can be programmed:
Button #12 = Clears the alarm
Button #13 = Minor threshold setting
Button #14 = Major threshold setting
Button #15 = Time period for Minor/Major alarms
Button #16 = Sends LCD message of Major alarms to first Attendant Station
CARRIER
LOSSBLUE
ALARMYELLOW
ALARMRED
ALARM

1Q
2W
3E
4R
BIPOLAR
VARIATIONSFRAME
SLIPDATA
ERRORS

5T
6Y
7U
8I
ENABLE/DISABLECLEAR
ALARM

9O
10 P
11 A
12 S
MINOR
ALARMMAJOR
ALARMTIME
PERIODATTENDANT
DISPLAY

13 D
14 F
15 G
16 H
T1  ALARM
ENTER  BUTTON  NUMBER 
						

							2-262T-1 Alarm Programming
Features and Operation
Enable/Disable (Carrier Loss Alarm)
Description
A Receive Carrier Loss (RCL) condition is declared when no bits have been received by the T-1 
Trunk card for 150ms. It causes an Out of Frame (OOF) condition, and 2.5 seconds later a RED 
Carrier Failure Alarm (CFA) state. During the time the RCL and RED alarm are declared, 
incoming and outgoing signal bits are frozen. Outgoing calls cannot be made.
Programming Steps
1. Press the CARRIER LOSS flexible button (FLASH 47, Button #1). Button #1 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 the HOLD button to save the entry. A confirmation tone sounds and the display 
updates.
DEFAULT … Carrier Loss Alarm is enabled on all T-1 trunks.
Blue Alarm
Description
The Blue Alarm signal is an unframed all ones signal. It is transmitted by a remote device 
(usually a CSU) and when received, indicates a transmission failure upstream of that device 
toward the local end. The AIS alarm signal is also known as the keep alive signal in that it 
prevents the T-1 circuit repeaters from malfunctioning when transmit from the remote end is 
lost.
Programming Steps
1. Press the BLUE ALARM flexible button (FLASH 47, Button #2). Button #2 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 the HOLD button to save the entry. A confirmation tone sounds and the display 
updates.
CARRIER  LOSS 0-1
ENABLED
BLUE  ALARM 0-1
ENABLED 
						

							T-1 Alarm Programming2-263
Features and Operation
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.
Yellow Alarm
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 #3 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 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.
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.
YELLOW  ALARM 0-1
ENABLED
RED  ALARM 0-1
ENABLED 
						

							2-264T-1 Alarm Programming
Features and Operation
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+6 errors in 1000 seconds.
Programming Steps
1. Press the BIPOLAR VARIATIONS flexible button (FLASH 47, Button #5). Button #5 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 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.
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 #6 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
This condition can exist if the Telco is providing B8ZS frame coding and the system 
is programmed for AMI.
B I P O L A R  VA R I AT I O N S 0-1
ENABLED
SLIP 0-1
ENABLED 
						

							T-1 Alarm Programming2-265
Features and Operation
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.
Clear Alarm
Description
The Clear Alarm option allows the alarm condition reported to the Attendant Display to be 
cleared.
Programming Steps
1. Press the CLEAR ALARM flexible button (FLASH 47, Button #12). Button #12 LED is lit 
steady. The following message displays:
2. Press the HOLD button to clear the alarm. A confirmation tone sounds.
DATA  ERRORS 0-1
ENABLED
DATA ERRORS
CLEAR  ALARM  PRESS  HOLD 
						

							2-266T-1 Alarm Programming
Features and Operation
Minor Alarm
Description
If the error counter for an Alarm Code reaches the number programmed as a Minor Alarm 
within the time (in minutes) entered in the Time Period, the system reports a Minor Alarm 
condition. The Minor Alarm threshold setting is variable from 00 to 99 minutes.
Programming Steps
1. Press the MINOR ALARM flexible button (FLASH 47, Button #13). Button #13 LED is lit 
steady. The following message displays:
2. Enter a valid number (00-99) on the dial pad which represents the threshold limit.
3. Press the HOLD button to save the entry. A confirmation tone sounds and the display 
updates.
DEFAULT … Minor Alarm threshold is set for 15 minutes.
Major Alarm
Description
If the error counter for an Alarm Code reaches the number programmed as a Major Alarm 
within the time (in minutes) entered in the Time Period, the system reports a Major Alarm 
condition. The Major Alarm threshold setting is variable from 00 to 99 minutes.
Programming Steps
1. Press the MAJOR ALARM flexible button (FLASH 47, Button #14). Button #14 LED is lit 
steady. The following message displays:
2. Enter a valid number (00-99) on the dial pad which corresponds to the time period limit.
3. Press the HOLD button to save the entry. A confirmation tone sounds and the display 
updates.
DEFAULT … Major Alarm threshold is set for 30 minutes and is variable from 00 to 99 
minutes.
DATA ERRORS 00-99
MINOR  ALARM  15
DATA ERRORS 00-99
MAJOR  ALARM  30 
						

							T-1 Alarm Programming2-267
Features and Operation
Time Period
Description
The Time Period option represents the length of time set for Minor and Major alarm 
conditions to occur.
Programming Steps
1. Press the TIME PERIOD flexible button (FLASH 47, Button #15). Button #15 LED is lit 
steady. The following message displays:
2. Enter a valid number (00-99) on the dial pad which represents the time period limit.
3. Press the HOLD button to save the entry. A confirmation tone sounds and the display 
updates.
DEFAULT … Time Period is set for five minutes.
Attendant Display - T-1 Alarms
Description
The Attendant Display option determines whether the first Attendant station should be 
notified of any T-1 alarm conditions when they occur.
Programming Steps
1. Press the ATENDANT DISPLAY flexible button (FLASH 47, Button #16). Button #16 LED is 
lit steady. The following message displays:
2. Enter a valid number (0 or 1) on the dial pad.
[0] = No alarm
[1] = Alarm enabled
3. Press the HOLD button to save the entry. A confirmation tone sounds and the display 
updates.
DEFAULT … All alarm conditions are enabled to be sent to the first Attendant station LCD 
display.
Operation
The attendant can dial feature code [606] to clear any T-1 alarm from the display. It will not 
clear the condition, just clear the display.
DATA ERRORS 00-99
TIME  PERIOD  05
DATA ERRORS 0-1
AT T  DISPLAY  ENABLED 
						

							2-268T- 1  Tr u n k i n g
Features and Operation
T- 1  Tr u n k i n g
Description
The T-1 trunk card can be used to connect 24 lines (24 channels per T-1 circuit) from a CO to 
the system. These lines can be any mix of inbound WATS, outbound WATS, standard DDD 
lines, DID lines, or TIE lines. The system also supports Fractional T-1 Service.
T- 1  S i g n a l i n g  Ty p e
Description
The T-1 trunk card provides the STS Systems with the ability to connect to 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. The STS Digital 
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. The STS 
Digital Systems support ANI, DNIS, or an ANI and DNIS combination on a per channel (line) 
basis.
Programming Steps
1. Press FLASH and 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 RangeCO  LINE  ATTRIBUTES
SELECT  A  CO  LINE  RANGE
If HOLD is pressed without entering a CO range, ALL CO lines are selected.
XXX - XXX  PAGE  B
ENTER  BUTTON  NUMBER 
						

							T- 1  Tr u n k i n g2-269
Features and Operation
5. Press the T-1 SIGNALING flexible button (FLASH 40, Page B, Button #1). The following 
message displays:
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-1  SIGNAL  TYPE 0-7
LO OP  START
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 40. DID digits from the carrier are routed via the DID 
table. To program the DID table, refer to Flash 44 
programming on 
page 2-107 and to Flash 43 programming 
on page 2-107.
[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 40. DNIS digits from the carrier are routed via the DID 
table. To program the DID table, refer to Flash 44 
programming on 
page 2-107 and to Flash 43 programming 
on page 2-107.
[7] = TIE/ANI The ANI number is treated and routed as an ICLID number. It 
follows the Flash 43 programming (
page 2-107) for routing 
information and Flash 55 programming (
page 2-195) for 
Name/Number Translation. 
						

							2-270T- 1  Tr u n k i n g
Features and Operation
T- 1  R i n g b a c k  O p t i o n
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:
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  D i a l  To n e  O p t i o n
Description
An option has been added to support T-1 channels which do not supply dial tone. 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.
T-1  RINGBACK 0-1
ENABLE
T-1  DIAL TONE 0-1
DISABLED