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简介

整流模块广泛应用于通信网络节点供电系统中,多个模块并联工作,同时与蓄电池并联,为通信网络节点如光纤接入设备、无线通信基站等提供稳定的直流供电。产品为热插拔模块,可以在线更换,不影响供电系统输出,产品体积小,适合应用于壁挂式、嵌入式通信电源系统。

特点

可支持多个模块并联使用

通过均流母线可以实现自主均流

能用于 1U 高度产品,适用性强

采用 RS485 总线进行通信

Specifications
产品选型表

型号

额定输出电流

最大输出功率

MER048-15

15A@57.6V

870W

MER048-30

30A@57.6V

1740W


工作环境条件

指标

条件

最小

典型

最大

单位

温度

/

-20

25

55

湿度

无凝露

5

---

95

%

海拔高度

/

0

---

2000

m

振动

(10~55)Hz、0.35mm正弦波

冲击

150m/s2、11ms


技术指标

技术名称

指标要求

输出电压

 额定48VDC,缺省53.5VDC,可调范围42~57.6VDC

输入电压

额定220Vac,范围176~295Vac ,低于176Vac降额输出

效率

≥92%(>50%负载,额定输入)

功率因数

≥0.99(满载)

稳压精度

±0.5%

纹波峰峰值

<200 mVpp

动态响应

5%

均分负载不平衡度

<±5%

输入频率范围

45~60 Hz


功能特性

功能名称

功能特性

过温保护

模块内部温度异常上升时,模块将停止工作

过欠压保护

输入电压大于300Vac模块停止工作;输入电压小于85Vac模块停止工作

短路保护

模块长时间短路不损坏

告警功能

出现异常(过欠压,过载,过温,风扇故障,通信故障)时产生LED告警提示

接口定义

序号

引脚

功能

1

L

火线

2

N

零线

3

PE

保护地

4

48V+/48V-

输出电源正负极

6

Pre-Charge

预充电,长针,且必须与输出正连接 

7

FAULT+

模块故障干节点输出

8

ALARM+

模块保护干节点输出

9

ALARM-GND

干节点地

10

Ps-off

备用

11

SHARE+/ SHARE-

模块均流线

12

PS-enable

短针,控制模块上下电,当短针接触时,才上电,没有时模块不工作

13

PS-present

模块在位信号,在模块内部与ALARM-GND短接

14

GND

模块信号线GND

15

ADDR0/ ADDR1/ ADDR2

模块地址线(ADDR2为高位地址,ADDR0为地位地址)

16

5V+/5VGND

外供5V电源,给RS485与模块输出隔离的通信芯片供电

17

RS485+/ RS485-

模块通信线,485总线在模块内部与CPU隔离

外形尺寸图

型号

a(mm)

b(mm)

c(mm)

d(mm)

e(mm)

f(mm)

g(mm)

h(mm)

i(mm)

j(mm)

k(mm)

重量(kg)

MER048-15

109

105

41.5

20.75

100

13.55

203.5

214

234

40.5

6.5

1

MER048-30

125

121

41.5

20.75

116

21.75

207.5

228.5

239.6

40.5

6.5

1.45

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