Specifications

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).
DS0–DP Card
Digital Signal Zero–Dataport Card (one of the data cards for this system).
DS1
Digital Signal, Level 1
DSL
Digital Subscriber Line
DSR
Data Set Ready
DSX
Digital Signal Cross-connect