MST

MASTER CIRCUIT LOCATION

INDICATES:

The "master" or controlling circuit location on a multipoint service.

DATE:

10/11/2007

BILLING:

CRIS and CABS

APPLICATIONS:

Access Service, Access Service Request (ASR), Data Service

SECTION - POSITION

EXAMPLES

S&E - FL

IG2  CKL 4-295 MAPLE, SUNNYSIDE,NJ
     /LSO 201 221/MST

IG2  CKL 2-444 HOES LA, PISCATAWAY,NJ
     /LSO 908 699/MST A

FID RULES/CONSTRAINTS:
  1. The MST FID, with no data following it, is used to indicate that this location is the master leg/segment.  Element 1 and code set A is used to indicate that the customer has identified this location as a master leg during alternative time periods.
  2. For Digital Data Service (DDS) application, the master circuit location is that leg of the multipoint service connected to the zero port of the first multi-junction unit (bridge) inside the LATA.
  3. MST is used, for example, to identify the controlling CKL on a Dial Select-A-Station (DSAS) multipoint.
  4. The master circuit location may be at any end user Circuit Location, i.e., CKL, designated by the Interexchange Carrier (IC), not necessarily in the same LATA as the bridge. When in a different LATA, CKL1 is the master circuit location for the LATA containing the bridge.
  5. T and F service orders are prohibited for Access Service application.
  6. X action codes prohibited on Access Service orders.

REFERENCES:
  1. ATIS/OBF-ASR-005, 006 and 013, MST field

SECTION - POSITION

APPEARANCE

MODE

MIN

MAX

S&E - FL

Optional

Alphabetic

0

1

Element: 1

Alternate Master Log

Appearance

Mode

Min

Max

Series

Range

Optional

Alphabetic

1

1

No

No

Code Set:
CodeMeaning
AAlternative to the Master Log

Element Rules:

Not valid for EVCs

ORDER TYPE/ACTION CODE/FID RELATIONSHIPS

Order Section - Position: S&E - FL

 

Order Type

N

T

F

D

C

R

X

P

A

Presence

O

O

O

O

O

O

P

P

P

Action Codes

I,E

I,E

O,D

O,D

I,O, D,E, R,C, T,M X

I,O, C,T, D,E, R,M, X

-

-

-

CRIS

CABS

Data Retention

Yes

Yes

Printed on CSR

Yes

Yes


Note: Please refer to BR-751-000-150 for a complete description of a FID specification and its structure.



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