Loop Rate - Sw 4; Clear To Send (Cs) - Sw 5; Table 2-A Switch Settings For Dte Async Rate - ADTRAN DSU 5600 User Manual

Data service unit

Table of Contents

Loop Rate - SW 4

61200.078L1-1

DTE Rate

1.2 and 2.4 kbps Async

Sync, Scrambler Disabled

4.8 kbps Async

9.6 kbps Async

19.2 kbps Async

38.4 kbps Async

57.6 kbps Async

Sync, Scrambler Enabled

When the SW4 switch is in the down (56 kbps) position, the

network interface of the DSU 5600 is configured for operation at

56 kbps, and when this switch is in the up (64 kbps) position, the

network interface is configured for 64 kbps operation.

For 64 kbps clear channel operation, there is a possibility that the

DTE data sequences might mimic network loop maintenance

functions and erroneously cause other network elements to

activate loopbacks. To prevent this, a data scrambler is enabled

when the 64 kbps option is selected.

When this switch is in the down (normal) position Clear To Send

(CS) follows the Request To Send (RS) lead with 250 µ ± 125 µ of

delay. The only exceptions to this occur when network or test

conditions prevent data from being transferred over the DTE

interface. During these conditions CS is turned Off.

For the up (On) position CS is forced On all the time.

DSU 5600 User Manual

Chapter 2. Installation

Switch Settings for DTE Rate

SW 1

SW 2

Down

Table 2-A

SW 3

Down

Table of Contents