ZETRON 2000 Series Spezifikationen PDF herunterladen (Seite 189)

189

Additional ZlinkW Troubleshooting Information

Figure 47: Local Connection Option Serial Cable

(The Shield on pin 1 is optional; if used, it should be connected only on one end of the

cable, to prevent ground loops; however, it usually does not cause problems if both ends

are connected).

If any of these lines are missing, ZlinkW probably will not work.

Modem Connect

Modem Connect - Internal

Some modems are set with software commands instead of the hardware switches or

jumpers shown below. For these modems, you need to obtain the correct setup codes from

the modem manual, corresponding to the settings noted below. Then the proper codes are

put into an initialization file in the Zetron directory called modem.ini. When ZlinkW starts

up, it looks for this file, and if found, sends its contents to the modem. See Modem Setup -

Software on page 190 for details. (Applies to version 300 software).

If you have purchased a modem in a market outside the U.S., be sure it uses Bell, not

CCITT, 1200 baud standards as default. If it defaults to CCITT and you cannot change it

with a switch or jumper, you will need to use an initialization file, or a Hayes command

along with the telephone number, to put it into Bell standard.

Zetron supports the Hayes Smartmodem 1200B and compatible modem cards. Zetron

does not support using modems that conform to the “WinModem” standard. These

modems use internal software to accomplish tasks that used be done by hardware units

called UARTs. This can create memory address problems that ZbaseW cannot deal with.

The simplest solution is to use a modem model that still has UARTs.

Modem Connect - External

The cable between the modem and computer should simply bring all the wires directly

through. Some cables might bring only a few lines through, causing problems. We require

only the wires shown in Figure 48.

DB-25S DB-9S Signal

1 — Shld

2 3 TXD

3 2 RXD

7 5 GND

8 1 CD

20 4 DTR

Signal DB-25S

Shld 1

TXD 2

RXD 3

GND 7

CD 8

DTR 20

PC Female Connector

Model 2X00

Female Connector

N.C.

1 2 ... 184 185 186 187 188 189 190 191 192 193 194 ... 375 376

Kommentare zu diesen Handbüchern

Keine Kommentare

ZETRON 2000 Series Spezifikationen Seite 189

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für POS-Terminals ZETRON 2000 Series