Zhone Technologies IMACS-200 - Manual (Page 281)

Glossary -7
d/i
Drop and Insert, one of the modes of operation for the WAN port.
DID
Direct Inward Dialing
DLC
Digital Loop Carrier
DLCI
Data Link Connection Identifier
DM
Degraded Minutes. Number of minutes with ES, UAS or LOS greater than zero (0).
DMA
Direct Memory Access
DPO
Dial-Pulse Originating
DPT
Dial-Pulse Terminating
DRAM
Dynamic Random Access Memory
DS0
Digital Signal - Zero, the standard bandwidth for digitized voice channels. Also referred to as
a time slot.
DS0–A
Strategy for mapping a single low-speed data circuit to a single DS0.
DS0–B
Strategy for multiplexing two or more DS0-A low-speed data circuits onto a single DS0 (e.g.,
5x9.6kbps, 10x4.8kbps or 20x2.4kbps).