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Country Differences
D-12 Issue 1 September 1995
Table D-12. Japan
*
PPM means Periodic Pulse Metering.
Japan
Tone Detector TN744C TN2182 TN748D
Tone-Clock TN2182 TN780 TN756
Call Classifier TN744C TN2182 TN744B
R2MFC Circuit Not
Applicable
Speech Synthesizer TN725B
Announcement TN750C TN750B TN750
Auxiliary Trunk TN763D TN763C
Analog Direct Inward Dialed (DID)
Trunk
TN429
Analog Central Office (CO) Trunk (no
PPM *)
TN429 TN465
Analog Central Office (CO) Trunk
(w/PPM *)
Not
Applicable
4 Wire Tie Trunk TN760D
2 Wire Tie Trunk TN439
Digital Central Office (CO)/Direct
Inward Dialed (DID) Trunk
TN464F TN464E TN464D TN464C TN767
Digital Tie Trunk TN464F TN464E TN464D TN464C TN767
Digital Integrated Services Digital
Network (ISDN) Central Office Trunk
TN464F TN464E TN464D TN464C
8 port Analog Line TN742
16 port Analog Line TN746B TN479
4 Wire Digital Line TN754B
2 Wire Digital Line TN2181
Data Line TN726B
Table D-13. Mexico
Mexico
Tone Detector TN744C TN2182 TN748D
Tone-Clock TN2182 TN780 TN756
Call Classifier TN744C TN2182 TN744B
R2MFC Circuit TN744C TN2182 TN744B
Speech Synthesizer TN725B