Cisco Systems IGX 8 appendix Data Channel Support

Data Channel Support

Sync. Data Interfaces:	RS-232C/D, RS-449/422, V.24, X.21, and V.35
	with IGX 8 as DCE or DTE.
High-Speed Data Rates	2.4 Kbps to 1.344 Mbps.
(HDM):
Low-Speed Data Rates:	2.4 to 19.2 Kbps per LDM port.
Ports per card:	LDI: 4 or 8.
	SDI: 4.
Control Leads Supported:	SDI: Per interface standards.
	SDI: Up to 7 in each direction for fast EIA.
	LDI: 3 in each direction for DCE and DTE for each port.
Control Lead Sync	Control leads are sampled every 50 ms. and changes will normally
w/Data:	follow data within 100 to 1000 msec. Fast EIA lead will be within 1
	byte.
DS0A Interface:	Superrate, 56 Kbps to 512 Kbps (8 DS0s) per port.
	Subrate: One 2.4/4.8/9.6/19.2/ or 56 Kbps per DS0
	Per Bell TR-TSY-000458, TR-TSY-000280, TR-TSY-000083, and
	TR-TSY-000077.
Data Clocking:	Synchronous and isochronous clocking.
	Normal, looped, and split clock configurations.
Pleisochronous	± 2 percent of nominal data rate.
Clock Range:

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