CBC ZR-DH1621NP Guia de Instalação descarregar pdf (Página 6)

TCOMMAND OPERATING INSTRUCTIONS V1.3 09-03-2009 V18 SOFTWARE.DOC Page 6

Fig. 2 Rear view of the T-Command Keypad.

4. DATA CONNECTIONS

The T-Command has two serial data ports both support RS422. The 1

port is labelled as KEYBOARD

this is dedicated for use with BBV equipment. The second is labelled as AUXILIARY this port is for

further development and not defined in this manual. The T-Command is supplied with one CAT5 Patch

Cable and one break out box. The Break out box enables the keypads to be installed over the site

without cutting Patch cables.

Fig. 3 Example of RS422 Keypad wiring.

0V +9Vdc 0V +9Vdc

RJ45 patch cable max length = 2M

Rx Data (TO CPU)

Tx Data (FROM CPU)

RJ45 patch cable max length = 2M

T-Command Keypad 1

BBUS Un-Terminated

T-Command Keypad 2

BBUS Terminated

1 2 3 4 5 6 7 8

1-4 = Keyboard Address

5&6 = Keyboard (BBUS) port termination

7&8 = Auxiliary port termination

BBUS maximum distance 1200M

RJ45 patch cable max length = 2M

1 2 3 4 5 6 7 8 9 10 11 ... 19 20

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CBC ZR-DH1621NP Guia de Instalação Página 6