AT&T DS1/DMi/ISDN-PRI manual 2PORT TYPES/INSTALLATION Compatibilities, FX, Wats, Dmi-Bos E

6-2PORT TYPES/INSTALLATION COMPATIBILITIES

Generic 1, Generic 2, CEM, or D4-channel bank). The other line-interface unit connects to the NCTE and T1 facility.

Dedicated data applications, both point-to-point and multipoint, can be connected to the CDM and inserted in selected channels. At the receive end, particular channels may be dropped from a DS1 or T1 facility by another CDM, or routed through a dedicated switch connection (DSC) as required.

TABLE 6-1.Supported Digital Facilities

DS1/DMI/ISDN-PRI Circuit-Pack Suffix Compatibility Matrix

	Signaling			System 85 R2 and G2					System 75 R1 and G1
	Type
			Switch	TN380_	ANN11_	ANN35_	TN555	TN767	Switch	TN722_	TN767
			Version		(Note 1)		(G2 Only)	(G2 Only)	Version
	E&M		V1-V4,G2	B, C, D	B, C, D, E	N/A	N/A	all	V2,V3,G1	all	all
	Signaling			(Note 2)	(Notes 2&3)
	Ground Start		V3,V4,G2	C, D	C, D, E	N/A	N/A	all	G1	N/A	all
(CO,	FX, WATS,	RA,									(Note 4)
	Plus DID)
	Loop Start		V3,V4,G2	C, D	C, D, E	N/A	N/A	all	G1	N/A	all
(CO,	FX, WATS,	RA)									(Note 4)
OPS Line (Note 5)			V3,V4,G2	C, D	C, D, E	N/A	N/A	all	G1	N/A	all
DMI-BOS (Note 3)			V3,V4,G2	C, D	D, E	N/A	N/A	all	V2,V3,G1	B	all
DSC (analog data)			V3,V4,G2	C, D	C, D, E	all	N/A	all	N/A	N/A	N/A
			(Note 6)
DMI-MOS and ISDN			V4,G2	D	N/A	all	N/A	all	G1	N/A	all
	(Note 7)						(Note 8)
	Proprietary		V1-V4,G2	B,C,D	C,D,E	N/A	N/A	all	V2,V3,G1	all	all
				(Note 2)

NOTES:

1.The ANN11E and ANN11C have similar functions with one exception: the ANN11E supports the DMI-BOS 24th-channel-signaling format and the ANN11C does not. The DMI-BOS format was added in addition to the proprietary 24th-channel and robbed-bit formats supported by ANN11C. The applications of these formats are summarized below in a feature comparison. The ANN11C and ANN11E are compatible with respect to all other options not listed in this table (including robbed-bit (RB) signaling, D4/ESF framing, and ZCS/B8ZS line coding).

SIG. TYPE ANN11 REQ	APPLICATIONS SUPPORTED
Robbed Bit C or E	Voice-grade tie, DID, & CO trunks, OPS lines, connections to D4-channel banks, DSCs, ACCUNET®
	switched digital
Proprietary C or E	AVD-tie trunks between System 85s and between System 85 and System 75
24th Chan.
DMI-BOS E	Proprietary 24th-channel format applications plus connections to any endpoint conforming to the
24th Chan.	“AT&T Digital Multiplexed Interface Technical Specification”. Examples include 3B5 hosts, HP3000
	hosts, and IBM® IDNX multiplexers. These endpoints are called “DMI-BOS endpoints” in these
	notes. Other vendor equipment is certified by AT&T for this connectivity. Certified equipment
	requires an ANN11E at the System 85 end.