Chapter 2. Installation and SetupASMi-31Installation and Operation Manual

Table 2-1 ASMi-31 Internal Jumpers and Switches (Cont.)

Item Jumper

Description

Values

Default Setting

 

 

 

 

Section 7

Controls the DTR to DSR

ON – Indicates only that the

DSR

 

transfer

local unit is powered up. It

 

 

 

does not indicate the status of

 

 

 

the communication channel or

 

 

 

operational status of the remote

 

 

 

site

 

 

 

OFF – Indicates that the DSR of

 

 

 

the local unit follows the DTR

 

 

 

signal of the remote unit

 

 

 

 

 

Section 8

Controls the ASMi-31

ON – Slave

Slave

 

operational status – slave or

OFF – Master

 

 

master

 

 

 

 

 

 

 

 

Closing the ASMi-31 Case

After completing the internal settings, close the unit case.

To close the ASMi-31 case:

1.Replace the upper half of the unit and press firmly until the plastic tabs fit into the tab housing.

2.Insert the original cover screws in their positions and tighten carefully. Do not use excessive torque.

Connecting the

Figure 2-2illustrates the rear panel of the ASMi-31 modem.

Interfaces

 

 

DTE

LINE

 

 

 

 

 

 

GND

 

 

 

2

4 5

~230V

0.1A T 250V

 

 

Figure 2-2 ASMi-31 Rear Panel

Connecting the Line

The ASMi-31 line connector is a terminal block/RJ-45 connector. Connect the transmission line (twisted pair) to the two clips marked LINE and the cable shield to the clip marked GND (optional). High rate data communication twisted pair cable is highly recommended in order to prevent crosstalk.

Before connecting the cables, make sure that the equipment is earthed by its power cable.

Caution

Insert the GND lead first.

 

2-6 Installation and Setup

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RAD Data comm operation manual Closing the ASMi-31 Case, To close the ASMi-31 case, Connecting the Line