Black-box MWU2000-X21 Uživatelský manuál stáhnout pdf (Strana 61)

2.048Mb

s Wireless Modem

TECHNICAL: 0118 931 2233

Table 3-9. MCP Parameters Menu Options

Master-Slave

In synchronous data communications systems, all components of the link should operate

using the same clock. The Master unit provides the clock and the Slave unit reconstructs it

from the data received from the master unit.

Total Link Delay

In order to improve performance the 2.048Mbps Wireless Modem uses an Automatic

Retransmission Queuing (ARQ) mechanism that enables to detect errors in the received data

and to request retransmission of that data. The ARQ mechanism breaks the data into

fragments (called buffers) and adds a Cyclical Redundancy Check (CRC) code, which

enables detection of errors in the received fragment. A header providing unique identification

as well as Acknowledge/Not Acknowledge response is attached to each fragment.

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 131 132

Žádné komentáře

Black-box MWU2000-X21 Uživatelský manuál Strana 61