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Card Setup

Sealevel Systems VERSA COMM+4/EX Page 2

Card Setup

The VERSA COMM+4/EX contains several jumper straps that must be set for

proper operation.

Address Selection

Each port on the VERSA COMM+4/EX occupies eight consecutive I/O

locations. A DIP-switch is used to set the base address for these locations.

The VERSA COMM+4/EX has a unique addressing scheme that allows it to be

completely compatible with Sealevel Systems’ older four port RS-232 interface

adapters (p/n 3064, 3065, 3066 and 3400) and provides the ability to select

specific non-linear address combinations (i.e. 3F8, 2F8, 3E8, 2E8).

The first addressing scheme allows the user to select the addresses for its ports

from a table of available address combinations.

The following table shows the addressing combinations available. If different

address combinations are required, please contact Sealevel Systems Technical

Support about custom PAL options.

Switch 6 Switch 7 Switch 8 Port 1 Port 2 Port 3 Port 4

On On Off 3F8 2F8 3E8 2E8

On Off On 2F8 3E8 2E8 2E0

On Off Off 3E8 2E8 280 288

Off On On 500 508 510 518

Off On Off 580 588 590 598

Off Off On 1500 1508 1510 1518

Off Off Off 3220 3228 4220 4228

On On On Addresses set up by switches 1 - 5

Figure 1 - Available Address Combinations

Note: Each COM: port in the system should have a unique address. Typically

COM1: - COM4: addresses are 3F8, 2F8, 3E8 and 2E8 Hex.

Refer to Appendix A for common address contentions.

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Impulse 3405 Bedienungsanleitung Seite 5