18
T1 Facility Interface Codes
If equipped with an ISDN PRI DBM, make the ISDN PRI connection using a USOC-type
RJ48C jack. When ordering an ISDN line from the telephone company, specify the
following:
Service Order Code 6.0F
Facility Interface Code 04DU-1SN
Up to 23B Service for an ISDN PRI DBM – Supports up to 23 circuit-switched
B-channels, with one local phone number for the entire T1 network connection.
Circuit Switched Data capability should be specified.
If equipped with an ISDN BRI DBM, make the ISDN BRI connection using a USOC-type
RJ49C jack. When ordering an ISDN line from the telephone company, specify the
following:
Facility Interface Code 02IS5
Calling Number Identification Service (CNIS) for both the originating and answering
units for data traffic on the B-channel.
Capability Package B for 1B-service, which supports up to two circuit-switched
B-channels, BRI-B1 and BRI-B2, with one Service Profile Identification (SPID)
number and one local phone number.
Capability Package R for 2B-service, which supports up to two circuit-switched
B-channels, BRI-B1 and BRI-B2, with two SPID numbers and two local phone
numbers.
Busy Fixed Call Forwarding for the answering system (typically the central site
system) is recommended if getting Capability Package R (2B-service). This feature
is only required if all remote systems will call the same phone number. Busy Fixed
Call Forwarding forwards a call to the BRI-B2 channel when the BRI-B1 channel is
busy.
Make the modem connection using a USOC-type RJ11C jack. The modem cannot be
used on public coin phone service provided by the telephone company. Connection to
party-line service is subject to state tariffs. Contact the state public utility commission,
public service commission, or corporation commission for tariff information.
Interface Code
Description
04DU9-BN
1.544 Mbps superframe format (SF) without line power
04DU9-DN
1.544 Mbps SF and B8ZS without line power
04DU9-1KN
1.544 Mbps ANSI ESF without line power
04DU-1SN
1.544 Mbps ANSI ESF and B8ZS without line power
