RMM Rack Mount Modem; User's Guide

4.2. Dip Switch Settings

Switch

 

Factory

 

Function

 

 

Setting

 

 

 

1

 

 

 

Data Terminal Ready (DTR) Override

 

 

X

 

 

Normal DTR operations: Computer must provide

 

 

 

UP

DTR signal for modem to accept commands.

 

 

 

 

 

Dropping DTR terminates call.

 

 

 

 

DOWN

DTR Override: Modem ignores DTR

2

 

 

 

Verbal/Numeric Result Codes

 

 

X

 

UP

Verbal (Word) Results

 

 

 

 

DOWN

Numeric Results

3

 

 

 

Result Code Display

 

 

 

 

UP

Suppress Result Codes

 

 

X

 

DOWN

Display Result Codes

4

 

 

 

Command Mode Local Echo Suppression

 

 

X

 

UP

Enable Echo

 

 

 

 

DOWN

Suppress Echo

5

 

 

 

Auto Answer Suppression

 

 

X

 

UP

Auto Answer On: Modem answers on first ring, or

 

 

 

higher if specified in NVRAM

 

 

 

 

 

 

 

 

 

DOWN

Auto Answer Off: Disable auto answer

6

 

 

 

Carrier Detect (CD) Override

 

 

X

 

UP

Normal: Modem sends CD signal when connecting

 

 

 

with another modem, drops CD on disconnect

 

 

 

 

 

 

 

 

 

DOWN

Override: CD always ON

7

 

 

 

Power-On and ATZ Reset Software Defaults

 

 

 

 

UP

User Defaults: Load Y or Y1 configuration from

 

 

 

 

user-defined nonvolatile memory (NVRAM).

 

 

 

 

 

XDOWN Factory Defaults; Load &F0 (Generic) template from read-only memory (ROM).

8

AT Command Set Recognition

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Western Telematic RMM-288 manual Switch Factory Function