Starplus Triad Xts Digital Key Telephone System System Programming And Operation Manual

T- 1  Tr u n k i n g2-283
Chapter 2 - 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  S TART
Table 2-24: T-1 Signaling Options
Signaling Option Description
[0] = None None is...

2-284T- 1  Tr u n k i n g
Chapter 2 - 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,...

T- 1  Tr u n k i n g2-285
Chapter 2 - Features and Operation
Wink Timer
Description 
When Wink signaling is programmed, this timer determines how long the XTS system 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. Press FLASH and dial [40]. The following message displays:
2. Enter a...

2-286T- 1  Tr u n k i n g
Chapter 2 - Features and Operation
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.
If a second digit isn’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...

T- 1  Tr u n k i n g2-287
Chapter 2 - Features and Operation
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...

2-288 T-1 /IS D N Al a rm  P ro g ram mi n g
Chapter 2 - Features and Operation
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...

T-1/ISDN Alarm Programming 2-289
Chapter 2 - Features and Operation
Button #16 = Sends LCD message of Major alarms to first
Attendant Station
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...

2-290 T-1 /IS D N Al a rm  P ro g ram mi n g
Chapter 2 - 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...

T-1/ISDN Alarm Programming 2-291
Chapter 2 - 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...

2-292 T-1 /IS D N Al a rm  P ro g ram mi n g
Chapter 2 - 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...