Mitel SX-200 DIGITAL Pabx General Description Manual

							Features Description 
, TABLE 4-1 (CONT’D) 
TRUNK HARDWARE OPTIONS 
Trunk Type: 2-CCT DID/TIE 
-ar-End Gives Answer Supervision 
Nnhibit Automatic Supervision 
No Seize Alarm 
No Release Alarm 
Toll Office 
Is this a CO 
DTMF 
Impedance (600 Ohms or Complex) 
Remote End is a Satellite 
Remote End is a Satellite with OPS Lines 
Trunk Type: 6-CCT DID 
Far-End Gives Answer Supervision 
Inhibit Automatic Supervision 
No Seize Alarm 
No Release Alarm 
Toll Office 
Is this a CO 
DTMF 
impedance (600 Ohms or Complex) 
Ignore Remote Disconnect 
Disconnect Timer (150 - 300 ms) x (50 ms increments) 
Release Acknowledge Timer (2000 + 9900 ms) x (100 ms inc) 
Start Type 
Debounce Timer (20 - 150 ms) x (10 ms increments) 
Wink Timer (150 q 300 ms) x (50 ms increments) 
Remote End is a Satellite 
Remote End is a Satellite with OPS Lines 
Trunk Descriptor Definitions 
l Far-End Gives Answer Supervision 
If selected, answer signals will be expected, and acted upon 
when received on the trunk; answer signals are not generated 
internally. 
If not selected, answer signals received will be ignored; answer 
signals will be generated internally, using a timer and pseudo 
answer supervision (System Option 38). 
0 Inhibit Automatic Supervision 
If selected, system will wait for the far-end to provide answer 
supervision; no system-simulated answer supervision will be 
provided. 
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							Features Description 
0 No Seize Alarm 
If selected, a trunk failing to return a seize acknowledgement on 
three successive occasions will be removed from service; 
maintenance will be notified. 
If not selected, the trunk will remain in service. 
l No Release Alarm 
If selected, a trunk failing to release will be removed from 
service; maintenance will be notified. 
If not selected, the trunk will remain in service. 
@ 
lmpedence 
“600” should be selected if the trunk is to be connected to a 
carrier facility, or the cable is short. This setting provides a 600 
ohm + I&F termination impedance match for the incoming line. 
“Complex” should be selected if the trunk is to be connected 
directly to cable facilities. This setting provides the standard 
AT&T complex baiance network as a termination impedence for 
the incoming line. 
0 Toll Office 
Select if the CO trunk is to be connected to a Toll Office. This 
option is applicable to systems using the North American loss 
plan. It provides a 3 dB loss for trunk-to-OPS line connections, 
and a 6 dB loss for trunk-to-ONS line connections. 
If not selected, “normal” through switch loss will be provided. 
0 Long Loop 
This option is applicable to systems using the UK loss plan. Sf 
selected, this option provides 4 dB gain for trunk-to-ONS line 
connections, and 4 dB loss for ONS line-to-trunk connections. 
If not selected, a 2 dB loss is provided for trunk-to-ONS line 
connections, and a 6 dB loss is provided for ONS line-to-trunk 
connections. 
0 is this a CO 
Select if trunk is to terminate at the Central Office. 
0 DTMF 
If selected, will allow DTMF digits to be transmitted through the 
trunk. 
If not selected, tone-to-pulse conversions will be performed. 
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							Features Description 
l Post Call Metering (0 - 15 s) x (1 s inc) 
This defines how long the system will wait for and record meter 
pulses after the release signal is received. 
0 Calling Party Disconnect Timer (1 - 12 min) x (1 min inc) 
This defines how long the system will wait for the far-end, a 
ground start trunk, to acknowledge a trunk release. 
0 Dictation Trunk 
If selected, this will keep the caller’s DTMF receiver for the 
duration of the call, such that the tone-to-pulse conversions 
may be performed. 
l Ignore Remote Disconnect 
If selected, release signals from the far-end will be ignored. 
If not selected, release signals will cause disconnection of the 
call. 
a Disconnect Timer (100 - 1000 ms) x (100 ms inc) 
This defines the time a release signal must be continuously 
present before a call is disconnected. 
l Guard Timer (0 - 3000 ms) x (900 ms inc) 
This defines how long the system will wait after releasing the 
trunk before seizing it again for an outgoing call. 
0 Ring Cycle Timer (5 - 10 s) x (I s incj 
This defines a period during which a minimum ring burst (250 
ms) must be present before the system will recognize it as an 
incoming call. 
0 Ignore Line Reversal During Seizure 
If selected, line reversal will not be recognized as an incoming 
seizure. 
l Ringing Expected 
If selected, incoming calls are not reported unless ringing is 
recognized. If other seize signals are received before ringing, 
the trunk is busied-out for outgoing calls, but the incoming call 
is not reported until ringing is received. 
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							Features Description 
Ringing Debounce Timer (5 - 12 s) x (1 s inc) 
This defines the duration during which the system tries to 
detect the minimum ring burst, indicating the persistence of an 
incoming call. 
Seize Timer (10 - 60 s) x (1 s inc) 
This defines the time the system will wait for a seize acknowl- 
edge from a ground start trunk. If this times-out three times in 
succession, the trunk will be removed from service, and main- 
tenance will be notified. 
Flash Timer (200 - 700 ms) x (100 ms inc) 
This defines the duration of a flash-hook transmitted on to the 
trunk. 
Interdigit Timer (300 - 600 ms) x (100 ms inc) 
This defines the time gap inserted between outpulsed digits. 
Remote End is a Satellite 
Select if the trunk is to terminate at a satellite PBX. 
Remote End is a Satellite with OPS lines 
Select if the trunk is to terminate at a satellite PBX with OPS 
lines 
E lead invert/ M lead invert 
These two fields provides the flexibility to specify the polarity 
of the E and M leads to match the far end connection. 
Release acknowledge timer 
Range 2000-9900 ms, 100 ms increments. This specifies the 
time-out period to wait for a release acknowledge signal from 
the far end. 
Guard timer 
Range 200-1000 ms, 100 ms increments. This specifies the 
guard time used to bar outgoing calls after releasing a call. 
incoming start type 
This field specifies the incoming type of the trunk, which can be 
set to immediate incoming, wink start incoming or delay dial 
incoming. 
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							Features Description 
e 
Debounce timer 
Range 20-50 ms, ‘lo ms increments. This timer specifies the 
period for which an incoming seizure is to be debounced before 
being recognized as a valid incoming seizure. 
l Wink timer 
Range 150-300 ms, 50 ms increments. This specifies the length 
of the wink signal sent to far end if trunk is wink start incoming 
or delay dial incoming. 
8 
Outgoing start type 
This field specifies the outgoing type of the trunk, which can be 
set to immediate outgoing, wink start outgoing, delay dial out- 
going or delay dial with integrity. 
a Digit outpulsing ratio 
This field specifies the break/make ratio during outpulsing. It 
can be set to 50/40, 66/33 or 30/20. 
l Outpulse delay timer. 
Range 100-2000 ms, 100 ms increments. This timer specifies 
the pause between seizing and the start of dialing, applicable to 
immediate outgoing trunks only. This value should be specified 
after determining the far end characteristics. 
0 Interdigit timer 
Range 300-800 ms, 100 ms increments This timer specifies the 
length of the interdigit pause during outpulsing. 
0 Wait for delay timer 
Range 300-5008 ms, 100 ms increments. This timer specifies 
the period to wait for the delay signal from the far end. It is 
only applicable if the trunk is of type delay dial outgoing 
(without integrity). 
Conditions 
None 
Programming 
Trunk circuit descriptors are selected in Form 13 (Trunk ‘Circuit De- 
scriptors). See Section MITL9108-093-210-NA, Customer Data Entry 
for further information. 
If the system is to provide pseudo answer supervision, set an appro- 
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							Features Description 
priate time for the time-out period via System Option 38 (Pseudb 
Answer Supervision Timer = IO - 60 Seconds). 
Operation 
None 
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							Features Description 
4.86 TRUNK CONNECT 
Description 
This feature allows an Attendant, station user or SUPERSET@ set user 
to connect specific types of trunks together. Also see ‘Device Inter- 
connection’. 
Conditions 
l At least one of the trunks in a connection must provide release 
supervision, or the connection will not automatically release 
from the system when the call is completed. 
e These options override the rules specified in ‘Device Inter- 
connection Table’ (CDE Form 29). 
Programming 
Select the Trunk Connect COS Options as required: 
l 313 (CO Trunk To CO Trunk Connect) 
l 314 (CO Trunk To Tie Trunk Connect) 
l 315 (CO Trunk To DID Trunk Connect) 
l 316 (Tie Trunk To Tie Trunk Connect) 
l 317 (Tie Trunk To DID Trunk Connect) 
l 318 (DID Trunk To DID Trunk Connect) 
l 319 (Extension non-CO Trunk To Trunk Connect) 
e To specifically prevent an attendant from connecting a DID 
trunk to a non-CO type trunk, select System Option 16 (DID to 
Non-CO Trunk Via Attendant Inhibit). 
Qperation 
None 
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							Features Description 
4.87 TRUNK GROUPS 
Description 
This feature controls extension access to selected groups of trunks. 
Trunk groups are defined, and used in the ARS CDE forms to control 
extension access to trunks. Extensions have access to the trunk groups 
through their Classes of Restriction (CDRs). For further information, 
refer to Sections MITL9108-093-213-NA, Automatic Route Selection, 
and MITL9108-093-210-NA, Custcmer Data Entry. 
Conditions 
a A maximum of 50 individual trunk groups are available. 
0 A maximum of 50 trunks are permitted in an individual trunk 
group. 
l A trunk may be a member of only one trunk group. 
e All trunks within a group must be of the same type. 
a Individual trunks must be programmed before they are entered 
into trunk groups. 
Programming 
Trunks are entered into trunk groups vla CDE Form ‘IS (Trunk Groups). 1 
Each trunk group may be given a unique systemwide name via CDE 
Form 16 as well. 
Stations and SUPERSET@ Sets are assigned their CORs in CDE Form 09 
(Stations/SUPERSET@ Sets). 
Station/SUPERSET@ access to trunk groups is determined using the 
ARS CDE forms (primarily Form 20 - ARS: COR Group Definition). 
See Sections MITL9’108-093-210-NA, Customer Data Entry and 
MITL9108-093-213~NA, Automatic Route Selection Description for fur- 
ther information. 
Operation 
None 
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							Features Description 
4.88 TRUNK RECALL PARTIAL INHIBIT 
Description 
By selecting this option, all switchhook flashes that occur while an 
extension is on a trunk will be partially inhibited. This will avoid the 
system mistaking a hang-up for a switchhook flash and ringing the 
extension back (i.e., phantom ringback). 
Conditions 
0 CCS Options 401 (Call Park) and 403 (Trunk Recall Partial Inhibit) 
are mutually exclusive. 
Programming 
a 
Select COS Option 403 (Trunk Recall Partial Inhibit) for the 
extension. 
Operation 
None 
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							Features Description 
4.89 TRUNKS - MISCELLANEOUS OPTIONS 
Description 
(a) Any trunk in the system,may be programmed to ignore incom- 
ing DTMF digits, and recognize only rotary digits. 
(b) Any trunk in the system may be programmed to wait a speci- 
fied time for dial tone before outpulsing digits. When the time- 
out period expires, digits are outpulsed with, or without dial 
tone. Also see LIMITED WAIT FOR DIAL TONE. 
Conditions 
None 
Programming 
To program a trunk to ignore incoming DTMF digits, select COS Option 
801 (Incoming Trunk Call Rotary Only) for the trunk. 
To program a trunk to wait for dial tone, select COS Option 802 
(Limited Wait For Dial Tone) for the trunk. 
Enter a value for the Limited Wait For Dial Tone Timer (Option 37 in 
CDE Form 04 - System Options and Timers). 
Operation 
None 
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