- play_arrow Fast Track: Initial Installation
- play_arrow Site Planning and Preparation
- play_arrow Installation and Configuration
- play_arrow Maintain Components
- play_arrow Troubleshoot Hardware
- play_arrow Contact Customer Support and Return the Chassis or Components
- play_arrow Safety and Compliance Information
- Safety Information for EX4100-H
- AC Power Electrical Safety Guidelines
- General Laser Safety Guidelines
- General Safety Guidelines and Warnings
- Laser LED Safety Guidelines
- Multiple Power Supplies Disconnection Warning
- Qualified Personnel Warning
- Restricted Access Warning
- TN Power Warning
- Hazardous Area Installation Warning
- General Electrical Safety Guidelines and Warnings
- Definitions of Safety Warning Levels
- Qualified Personnel Warning
- Warning Statement for Norway and Sweden
- Fire Safety Requirements
- Installation Instructions Warning
- Chassis and Component Lifting Guidelines
- Restricted Access Warning
- Ramp Warning
- Cabinet-Mounting Warnings
- Grounded Equipment Warning
- Radiation from Open Port Apertures Warning
- Laser and LED Safety Guidelines and Warnings
- Maintenance and Operational Safety Guidelines and Warnings
- Action to Take After an Electrical Accident
- Prevention of Electrostatic Discharge Damage
- Compliance Standards for EX4100-H Switches
- Compliance Statements for EMC Requirements for EX Series Switches
- Statements of Volatility for Juniper Network Devices
EX4100-H Power System
This topic details the power systems (PSUs) and their specifications for the EX4100-H switches.
AC Power Supply Unit in EX4100-H Switches
The EX4100-H-12MP uses 340 W AC and 340 W DC external fanless power supply units (PSUs). You can connect up to two PSUs to the switch.
You can connect the EX4100-H-12MP switch to any one of the following:
- One external 340 W AC PSU
- One external 340 W DC PSU
- Two external 340 W AC PSUs
- Two external 340 W DC PSUs
- One external 340 W AC PSU and one external 340 W DC PSU
- Characteristics of the AC PSU
- Specifications of the AC PSUs
- PoE Budget Planning
- Specifications of the Power Cord for AC PSUs for EX4100-H Switches
Characteristics of the AC PSU
The AC PSU for the EX4100-H-12MP switch is an external PSU.


1 — PSU power output terminal | 3 — PSU grounding points |
2 — PSU LED | 4 — PSU power input terminal |
Table 1 lists details of the 340 W AC external PSUs used in EX4100-H-12MP switches. Refer Figure 5 for the external PSU LED colors and statuses.
Details | 340 W AC PSU | |
---|---|---|
Model number |
| |
AC appliance inlet Note: Each AC appliance inlet requires a dedicated AC power source. | Number | 1 |
Type | Terminal block | |
Power supply status LED (OUT_OK) | One single bi-color LED (green and amber) |
Specifications of the AC PSUs
Table 2 provides the PSU specifications of the 340 W AC PSUs.
Item | Specification |
---|---|
Input voltage range and frequency | 100-240 V, 50-60 HZ |
Output power | 340 W |
PoE Budget Planning
Table 3 shows the PoE budget planning details in EX4100-H-12MP switch models.
Model | System Budget | PoE Budget | Total Budget | PSU |
---|---|---|---|---|
EX4100-H-12MP with one PSU | 66 W | 240 W | 306 W | 340 W |
EX4100-H-12MP with two PSU | 66 W | 360 W | 426 W | 680 W |
Specifications of the Power Cord for AC PSUs for EX4100-H Switches
A detachable AC power cord is supplied with the AC PSUs. The coupler is a custom lug-type. The plug end of the power cord fits into the power source outlet that is standard for your geographical location.
The AC power cord provided with each power supply is intended for use with that PSU only and not for any other use.
The power cord of spare PSUs is separately orderable.
In North America, AC power cords must not exceed 4.5 m (approximately 14.75 ft) in length, to comply with National Electrical Code (NEC) Sections 400-8 (NFPA 75, 5-2.2) and 210-52 and with Canadian Electrical Code (CEC) Section 4-010(3). The cords supplied with the switch are in compliance.
Table 4 gives the AC power cord specifications for the countries and regions listed in the table.
Country or Region | Electrical Specifications | Plug Standards | Juniper Model Number |
---|---|---|---|
Argentina | 250 VAC, 10 A, 50 Hz | IRAM 2073 | CBL-PWR-RGD-RNG-AR |
Australia | 250 VAC, 10 A, 50 Hz | AS/NZS 3112 | CBL-PWR-RGD-RNG-AU |
Brazil | 250 VAC, 10 A, 50 Hz | NBR 14136 BR/3 | CBL-PWR-RGD-RNG-BR |
China | 250 VAC, 10 A, 50 Hz | GB 2099/GB1002 | CBL-PWR-RGD-RNG-CH |
Europe (except Italy, Switzerland, and the United Kingdom) | 250 VAC, 10 A, 50 Hz | CEE(7)VII | CBL-PWR-RGD-RNG-EU |
India | 250 VAC, 10 A, 50 Hz | IS1293 | CBL-PWR-RGD-RNG-IN |
Israel | 250 VAC, 10 A, 50 Hz | SI32 IL/3G | CBL-PWR-RGD-RNG-IL |
Italy | 250 VAC, 10 A, 50 Hz | CEI 23-50 I/3G | CBL-PWR-RGD-RNG-IT |
Japan | 125 VAC, 12 A, 50 Hz or 60 Hz | JIS C8303/CNS690 | CBL-PWR-RGD-RNG-TW |
Korea | 250 VAC, 10 A, 50 Hz or 60 Hz | KSC8305 | CBL-PWR-RGD-RNG-KR |
North America* | 125 VAC, 13 A, 60 Hz | NEMA 5-15P | CBL-PWR-RGD-RNG-US |
125 VAC, 15 A, 60 Hz | NEMA 5-15P | CBL-PWR-RGD-RNG-US | |
South Africa | 250 VAC, 10 A, 50 Hz | SAN 164/1 ZA/3 | CBL-PWR-RGD-RNG-SA |
Switzerland | 250 VAC, 10 A, 50 Hz | SEV 1011- 12G | CBL-PWR-RGD-RNG-SZ |
United Kingdom | 250 VAC, 10 A, 50 Hz | BS1363A/SS145 | CBL-PWR-RGD-RNG-UK |
CBL-PWR-RGD-DC | |||
CBL-PWR-RGD-SYS |
Figure 3 illustrates the plug on the power cord for some of the countries or regions listed in Table 4.

Do not use the AC power cord with any other product other than EX4100-H.
Power cords must not block access to switch components.
DC PSU in EX4100-H Switches
The EX4100-H-12MP switches can be powered by external 340 W DC PSUs.
- Characteristics of a DC PSU
- Specifications of the DC PSUs Used in EX4100-H Switches
- Specifications of the Power Cord for DC PSUs for EX4100-H Switches
Characteristics of a DC PSU
The DC PSUs for EX4100-H-12MP switches are available in the 340 W fanless model.

Table 5 lists the details of the 340 W DC PSUs used in EX4100-H-12MP switches.
Details | 340 W DC PSU | |
---|---|---|
Model number |
| |
DC appliance inlet Note: Each DC appliance inlet requires a dedicated power source. | Number | 1 |
Type | DC input power connector | |
Power supply status LED (OUT_OK) | One single bi-color LED (green and amber) |
Specifications of the DC PSUs Used in EX4100-H Switches
Table 6 provides the power supply specifications of the DC power supplies.
Item | Specification | DC PSU |
---|---|---|
DC input voltage and range | Range at input of terminal block: 20.4 VDC to 72 VDC DC input voltage nominal: +24V/-48V/-60VDC | EX4100-H-12MP-DC-PSU (340 W external) |
The wire gauge measurement of the external 340 W DC PSU of the EX4100-H-12MP is 12 AWG with temperature rating of wire 90C or as per country code. CBL-PWR-RGD-SYS is the Juniper Model Number of the DC power cord that connects the external 340 W DC PSU to the switch.
Specifications of the Power Cord for DC PSUs for EX4100-H Switches
A detachable DC power cord is supplied with the DC PSUs.
The following two DC power cords are available for the external 340 W DC PSU of EX4100-H-12MP.
CBL-PWR-RGD-DC - Juniper Model Number of the DC power cord that connects from the DC power source to the DC PSU
CBL-PWR-RGD-SYS - Juniper Model Number of the DC power cord that connects the external 340 W DC PSU to the switch
Do not use the DC power cord with any other product other than EX4100-H.
Power cords must not block access to switch components.
The wire gauge measurement of the external 340 W DC PSU of the EX4100-H-12MP is 12 AWG. CBL-PWR-RGD-SYS is the Juniper Model Number of the DC power cord that connects the external 340 W DC PSU to the switch.
Power Supply LEDs in EX4100-H Switches
The PSUs of the EX4100-H switches have one LED that indicates the state of the power supply (see Figure 5).

1 — PSU LED |
Table 7 describes the 340-W AC PSU external power supply LED.
Table 8 describes the 340-W DC PSU external power supply LED.
LED Label | LED State | Power Supply Condition |
---|---|---|
OUT_OK | Green | 54V output OK or 12V output OK. |
Amber | Indicates a fault condition even though there is power supply. The following are the possible fault codes:
| |
Off | No AC input |
LED Label | LED State | Power Supply Condition |
---|---|---|
OUT_OK | Green | 12V output OK. |
Amber | Indicates a fault condition even though there is power supply. The following are the possible fault codes:
| |
Blinking Amber | OTW, OCW, OVW | |
Blinking Green | 12V off, the PSU entering ISP mode | |
Off | No input |