background image

SDIM/DMX

ii

i

i

iii

DALI indicator is on for DALI power, and blinks 

off for DALI activity.

SDIM indicator flashes during SDIM/DMX activity.

POWER is on to indicate power on.

1–8 are on to indicate relays 1 to 8 being on.

i = 

SDIM/DMX数据线(接前级设备)

ii =  SDIM/DMX数据线(接后级设备)
iii = 短接阻抗端口(如果此设备在SDIM/DMX数据

线末端)

备注: 尽量保持最短裸线长度.

EN

EN

CN

CN

CN

1

2

3

3a

3b

3c

Wire for override, if required.

Note: Maximum cable 

length 50 m.

Close switch to cause level 

override.

越级控制线,如需要.
备注: 最大接线长度 50米
闭合开关触发越级控制命令.

EN

CN

Do NOT connect DALI and SDIM/DMX 

at the same time.

A = DALI screen (if required)

B = DALI/DIGIDIM devices

不能同时接DALI和SDIM/DMX数据线.
A = DALI屏蔽线(如需要)
B = DALI/DIGIDIM数据线

EN

CN

Status Display

EN

CN

A

B

状态指示

i = 

SDIM/DMX data cable (from previous device)

ii = 

SDIM/DMX data cable (to next device)

iii =  Link (0Ω) for termination (if unit is at end 

of SDIM/DMX cable line)

Note:  Keep unscreened wire lengths to a minimum.

DALI常亮指示DALI供电,闪烁指示DALI数据.
SDIM闪烁指示SDIM/DMX数据.
POWER常亮指示POWER供电.
1-8通道亮指示相应的继电器1-8开启.

A:  Relay mimics 1 to 8

B:  ‘Power’ indicator

C:  SDIM/DMX activity indicator

D:  ‘Up’ button

E:  ‘Down’ button

F:  Hardware (wired) override indicator

G:  DALI power / activity indicator

H:  Software override indicator

A: 继电通道显示屏 1-8
B: ‘电源’指示灯
C: SDIM/DMX数据指示灯
D: ‘上’键
E: ‘下’键
F: 硬指令(外部接线)触发越级控制命令指示灯
G: DALI供电/数据指示灯
H: 软件指令触发越级控制命令指示灯

EN

Helvar Ltd

Hawley Mill,

Hawley Road

Dartford, Kent

DA2 7SY

UK

www.helvar.com

Helvar 499

8-Channel Latching Relay Unit

Doc: 7860334, issue 1
Date: 2015-07-20

Installation Guide

8-Channel Latching 

Relay Unit (499)

RELAY 

TERMINALS

OVERRIDE

DALI

AC

SDIM/ 

DMX

5

6

7

8

F

E

H

G

B

A

C

D

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