Toshiba Strata CIX40 General Description Manual page 188

Appendix — Specifications
Reserve Power
6. When ordering DS-1/T1 circuits, six items must be specified:
The number of channels per T1 circuit, fractional increments are normally 8, 12, or 16 channels, full service is
•
24 channels. Unused channels must be bit-stuffed.
CO line types assigned to each channel: Loop Start, Ground Start, Tie (Wink or Immediate Start), DID (Wink
•
or Immediate).
Frame Format Type: Super Frame (SF) or Extended Super Frame (ESF). The T1 provider normally specifies
•
the Frame Format to be used, either is adequate for CO digital voice lines. ESF provides a higher level of
performance monitoring, but requires trained personnel and the ESF CSU normally costs more than an SF
only CSU.
Line Code Type: Alternate Mark Inversion (AMI) or Bipolar 8 Zero Substitution (B8ZS). The T1 provider
•
normally specified the Line Code to be used, either is adequate for T1 CO digital voice lines.
The customer may have to provide the Channel Service Unit (CSU) to interface the CIX T1 circuit to the Telco
•
T1 circuit. (CSUs are a Telco requirement.)
RDTU Network Channel Interface Codes: 04DU9-BN, 04DU9-DNZZ, 04DU9-1SN, 04DU9-1KN, 04DU9-
•
1ZN.
7. For information on how to order ISDN PRI circuits, you should refer to the Toshiba ISDN Training CBT. ISDN
circuits may require a customer-provided CSU for PRI and/or Terminal Adapter or Network Terminal units for
BRI. In U.S. CSU/TAs must be UL-listed in the U.S. In Canada, they must be CSA certified.
8. RPTU2 is required for Strata Net private networking.
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Strata CIX General Description 12/07