Gree GMV-120WM/B-F

GMV5 D.C INVERTER MULTI VRF SERVICE MANUAL
323
SN
Interface Name
Description
Remark
1
Power interface
Input AC220V~50HZ; Output 12~30V DC 800mA
Accompanied power supply of
the converter
2
Communication
interface
Line A of RS485 connected to R+ on 485 terminal, and
Line B connected to R-. RS232 port connected to
RS232 on computer
See related instructions
3
Power indicator
Normally bright when it is energizing.
See related instructions
4
Communication
indicator
RX/TX indicator blinks during normal communication.
See related instructions
(4) Dimensions
POWER
RX
TX
V+ V- E RS232
R+ R-
C53
94mm
25mm
72mm
88mm
(5) Cautions on Installation
 It must be installed indoors. Avoid knock or exposure to sunshine or rain. It is suggested to place it
in the monitoring room together with the computer.
 The manufacturer's original equipment must be used. Never use any other model or substitute
product.
 Independent power supply is required. Make sure to install adequate 220V AC socket for power
supply.
2.1.4.4 Introduction of Optoelectronic Isolated Repeater
(1) Function Introduction
Function of optoelectronic isolated repeater
1) To ensure the signal completeness and prevent the signal from attenuation under long distance
communication when the distance of the whole communication line exceeds 800m.