Moxa VPORT 254-M-SC-T Manual do Utilizador descarregar pdf (Página 15)

VPort 254 User’s Manual Introduction

1-9

RS-232/RS-422/RS-485 COM port

The VPort 254 has 1 COM port for connecting a PTZ motorized camera or serial device. The

COM port transmits RS-232 or RS-422/485 signals over the TCP/IP network. Users can use this

COM port (DB9 male connector) to monitor data or control a serial device, or for the control of a

PTZ motorized camera. The pin assignments are as follows:

PIN RS-232

RS-422

4-wire RS-485

2-wire

RS-485

1 DCD TxD-(A) ---

2 RXD TxD+(B) ---

3 TXD RxD+(B) Data+(B)

4 DTR RxD-(A) Data-(A)

5 GND GND GND

6 DSR --- ---

7 RTS --- ---

8 CTS --- ---

9 --- --- ---

Redundant 12/24 VDC and 24 VAC power inputs

The VPort 254 has two power inputs to provide redundancy. Each power input support both 12/24

VDC and 24 VAC power for greater versatility.

NOTE

The supported power input specifications for the VPort 254 series are 12-32 VDC for a 12/24

VDC power input, or 18-30 VAC for a 24 VAC power input. This differs from the Moxa EDS

switch’s 12-45 VDC power input.

General I/O Terminal Blocks

A 8-pin terminal block and an 10-pin terminal block are located on the VPort 254’s top panel. The

terminal blocks provide 4 digital inputs (DI), 2 relay outputs (Relay), and 2 power inputs. The

digital inputs and relay outputs are for linking to peripheral devices, such as sensors and alarms.

These I/O connections can be employed when using the VPort 254 to create an intelligent alarm

system for system operation (power failure, video loss, disconnected network) or triggered event

(VMD).

Normal Open

Common

Relay Output

Normal Close

Max. 1A, 24 VDC

Initial status is Normal Open

DI-

Digital Input

I1, I2 DI+

“High”: +13V to +30V

“Low”: -30V to +3V

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 97 98

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