Bosch IntuiKey Installation Manual download pdf (Page 23)

IntuiKey Keyboard Installing the IntuiKey Keyboard | en 19

Bosch Security Systems, Inc. Installation Manual F.01U.115.018 | 1.92 | 2008.12

Figure 3.7 Configuration using LTC 8712 Series Console Port Expander

On Allegiant systems with a Printer port, up to two Console Port Expanders can be

connected, supporting a total of eight RS-232 model keyboards.

To configure an Allegiant system to operate with an LTC 8712 Console Port Expander, you

must have access to the Allegiant CPU’s dipswitches, the PC-based LTC 8059 Master Control

Software, and possibly an Allegiant keyboard.

To convert an Allegiant Console port using a CPU dipswitch method, set dipswitches 3 and 4

to the ON position on CPU dipswitch S1, S100, S1001, or S0201 (the switch number depends

on the Allegiant model being used). After a system reset (power off/on, for example), the

Allegiant’s Console port is forced into the Port Expander mode, and the RS-232 data rate is

automatically set to 57,600 baud. To convert an Allegiant Console port via the Master Control

Software, connect to the Allegiant and go online. Select the Parameter tab, and then the

Options tab. Check the box labeled Set Console Port to Port-Expander mode. Download the

table into the Allegiant.

To convert an Allegiant Printer port to operate in the Port Expander mode, first configure the

Printer port to operate as a Console port. This is done by setting dipswitch 4 to the ON

position on CPU dipswitch S2, S101, S1002, or S0202 (the switch number depends on the

Allegiant model being used). After a system reset (power off/on, for example), the Printer port

will begin to operate as a Console port. Next, use either the Allegiant Keyboard User Function

38 or the Master Control Software to change the port to the Port Expander mode. If using the

Master Control Software, connect to the Allegiant and go online. Select the Parameter tab,

and then the Options tab. Check the box labeled Set Printer Port to Port-Expander mode.

Download the table into the Allegiant.

Set the internal dipswitches of the LTC 8712 Console Port Expander as follows:

Dip Switch Position Comment

401.1 ON (down) 57,600 Baud for system communication

401.2 ON Handshaking enabled for system communication

401.3 OFF Reserved

401.4 OFF Reserved

401.5 ON To enable Port 1 for RS-232 Keyboard mode

401.6 ON To enable Port 2 for RS-232 Keyboard mode

401.7 ON To enable Port 3 for RS-232 Keyboard mode

401.8 ON To enable Port 4 for RS-232 Keyboard mode

402.1 OFF 9600 Baud for external communications

402.2 ON 9600 Baud for external communications

402.3 OFF Handshake disabled for external communications

402.4 OFF 1 Stop Bit for external communications

402.5 OFF No parity for external communications

402.6 OFF No parity for external communications

402.7 OFF 8 data bits for external communications

402.8 OFF Reserved

LTC 8712 Expander

Allegiant system main

CPU bay

Refer to text regarding setup of the Allegiant

& LTC 8712 to operate in Allegiant Keyboard

mode.

User-supplied female

9-pin D connector.

3 m (10 ft) data/

power cable

supplied with

keyboard

User-supplied cable or other link

suitable for

full duplex RS-232 transmissions

at 9600 baud

Expander pin 2 (Rx) to Tx of link or directly to pin 3 of IntuiKey's 9 pin connector

Expander pin 3 (Tx) to Rx of link or directly to pin 2 of IntuiKey's 9 pin connector

Expander pin 7 (Gnd) to Data Gnd of link or directly to pin 5 of IntuiKey's 9 pin connector

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BOSCH

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