RAD Data comm ASMI-450 operation manual Jumper and Switch Location Functions, Switch S1

Installation

Jumper and Switch

Location and

Functions

Figure 2-1. Identification of Cover Screws

The ASMi-450 consists of a main board and a user's port interface board. The jumpers and switches located on the ASMi-450 main board are identified in figure 2-2. Their functions are described below.

In addition to the jumpers listed below, the ASMi-450 has additional jumpers, that are set by the manufacturer and must not be changed by you.

Note

Figure 2-2 also indicates the location of the 1A protection fuses, F1 and F2, used to protect the line side of the isolation transformers of the HDSL line.

The type of user's port interface board depends on the interface installed on your ASMi-450. None of the user's port interface boards offered with the ASMi-450 includes user-selectable jumpers.

Switch S1

The ASMi-450 is delivered with a set of default parameters that allow the user to start the configuration activities from a known state. These parameters are stored in its program EPROM, and therefore cannot be modified. By configuring the ASMi-450, the user specifies custom parameter values; these parameter values are stored in the ASMi-450 data base (located in non-volatile memory), and are automatically loaded each time the ASMi-450 is powered up.

Note

If during the power-up self-test, it is found that the user's configuration has been corrupted, the ASMi-450 will automatically reload the default parameters from its EPROM.

2-4 ASMi-450 Installation and Operation Manual