Справочник Пользователя для Pelco C2908M-B

C2908M-B (4/05)

77

Refer to Figure 44 and the instructions that follow.

Figure 44.  KBD300A (Direct Mode) Connected to a Receiver or Spectra Dome System 

1. Connect a DB9 cable to the RS232/422/485 port on the NET300 receiver. (In the Interface Mode field on the configuration page for the 

interface settings, select RS-422/485.) The data format should be 4800 baud, 8 data bits, no parity, and 1 stop bit.

2. Connect RX

− on the DB9 cable to terminal 2 on the wall block. Connect RX+ on the DB9 cable to terminal 1 on the wall block.

3. Connect a 12 VAC power supply to terminals 3 and 4 on the wall block.

4. Set DIP switch 6 on the KBD300A to ON to enable turbo pan operation or OFF to disable that feature. The KBD300A will recognize Direct 

Mode automatically.

5. Connect the wall block to the KBD300A with an RJ-45 straight cable.

RS232/422/485

RS232/422/485

TX-

TX+

P PROTOCOL ONLY

RECEIVER OR

SPECTRA

RX+

RX-

TRANSMITTER

RX(-)

RX(+)

12 VAC

KBD300A

STRAIGHT

CABLE

DIRECT

MODE

RECEIVER

1

2

3

4

8

7

6

5

4800, 8, NONE, 1

Video In

4800, 8, NONE, 1

MONITOR

Video Out