Anritsu MN25131A Series User manual

Operation Manual
MN25131A Series
Multi-Function Extender
Anritsu Company
490 Jarvis Drive
Morgan Hill, CA 95037-2809
USA
http://www.anritsu.com
Part Number: 10410-00783
Revision: A
Published: July 2020
Copyright 2020 Anritsu Company, USA. All Rights Reserved.

Front-2 PN: 10410-00783 Rev. A MN25131A OM

MN25131A OM PN: 10410-00783 Rev. A Contents-1
Table of Contents
Chapter 1 — Introduction
Chapter 2 — Front and Rear Panel Connections
2-1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Chapter 3 — Performance Considerations
3-1 Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2 Battery Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3-3 Battery Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3-4 Supply Overload Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
SFP Fiber Optic Transceiver Care and Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3-5 USB 3.0 Interface Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3-6 Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3-7 USB Extension Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3-8 USB to SFP Optical Fiber Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Chapter 4 — Specifications

Contents-2 PN: 10410-00783 Rev. A MN25131A OM

MN25131A OM PN: 10410-00783 Rev. A 1-1
Chapter 1 — Introduction
The MN25131A Multi-Function Extender provides USB hub and communication extension, multiple voltage
outputs, and battery power capabilities to enable remote use of USB instruments. USB to SFP (small
form-factor pluggable fiber-optic transceivers) allow two extenders to make a USB communications link over
distances in excess of 100 meters via fiber optic cables. An internal re-chargeable battery system enables
remotely powering measurement instruments in locations that are not necessarily close to AC line power. One
+5 V, four +12 V, and one +20 V supply connections are available. The inclusion of a six-port USB HUB allows
the extender to support multiple USB devices and interface accessories that may be part of a measurement
application. Such an application is the ME7868A 2-Port Modular Vector Network Analyzer System.
Figure 1-1. MN25131A Multifunction Extender
Power Supply
RECHARGEABLE
BATTERY
+5V +12V USB 3.0 HUB
Local
Extender
+20V Local
Extender
Remote
Extender
FIBER FIBER FIBER
USB-B USB-B USB-A
2.5 Amp max
DC input:
+15V to +23V
6 Amps USB-B
2.5 Amp max 4 Amp max total
Battery
Monitor
USB-A connectors

Introduction
1-2 PN: 10410-00783 Rev. A MN25131A OM
Figure 1-2. The MN25131A modules play a key role in supporting the two 25-meter MS46131As in the ME7868A
Modular 2-Port Network Analyzer System.

MN25131A OM PN: 10410-00783 Rev. A 2-1
Chapter 2 — Front and Rear Panel
Connections
2-1 Front Panel
Figure 2-1. MN25131A Front Panel Connectors
Table 2-1. MN25131A Front Panel Connectors (1 of 2)
Ref Name Function
1 Ground Lug Chassis ground
2 CHRG - Green if external supply is > 15 V.
- Orange if external supply is < 15 V.
- Off if no external supply is connected.
3 On/Off Turns Battery Status LEDs on or off.
4 BATTERY STATUS - Four LEDS show internal battery charge status.
- 25% range for each LED.
- For example if 50% LED is on then battery is charged from 26 to 49%.
- 25% LED will turn Orange if charge is < 10%.
- 25% LED will flash Orange is charge is < 5%.
- All four LEDs will flash green if charge is = 100%.
- Battery fully discharged if no status LEDs are illuminated
- LEDs will flash randomly if external supply is applied and no battery is
inserted.
5 +5 V +5 Volt Supply
- 2.5 Amps available.
- LED is Green when connector is inserted.
- LED will turn orange when > 2.2 A is drawn.
- LED will extinguish when > 2.5 A are drawn.
12 65437

2-1 Front Panel Front and Rear Panel Connections
2-2 PN: 10410-00783 Rev. A MN25131A OM
6 +12 V +12 Volt Supply
- Four output connections.
- LED is Green when connector is inserted in any of the four.
- LED will turn orange when > 3.7A is drawn from the supply.
- LED will extinguish when > 4.0 A are drawn.
7 USB 3.0 HUB - Six USB 3.0 Connections.
- Hub input on rear of extender.
- Each connector has an LED indicator that shows of activity present.
Table 2-1. MN25131A Front Panel Connectors (2 of 2)
Ref Name Function

Front and Rear Panel Connections 2-2 Rear Panel
MN25131A OM PN: 10410-00783 Rev. A 2-3
2-2 Rear Panel
Figure 2-2. MN25131A Rear Panel Connectors
Table 2-2. MN25131A Rear Panel Connectors
Ref Name Function
1 FIBER EXTENDER USB Type A to SFP Optical Fiber Converter
S (send) and R (receive) LEDs indicate Activity on the Fiber Outputs
This converter enables the system power only when optical power is sensed
at its SFP input. (See functional description in Section 3-8 “USB to SFP
Optical Fiber Converters” on page 3-4.
2 FIBER EXTENDER USB Type-B to SFP Optical Fiber Converter
S and R LEDs indicate Activity on the Fiber Outputs
3 FIBER EXTENDER USB Type-B to SFP Optical Fiber Converter
S and R LEDs indicate Activity on the Fiber Outputs
4 USB 3.0 IN USB Type-B Input to Front Panel HUB
- Status LED is Green when bus activity is present.
5 +20 V + 20 V Power Supply
- LED turns green when a connector is inserted.
- LED will turn orange when > 2.3 A is drawn.
- LED will extinguish when > 2.5 A is drawn.
6 CHARGE External Supply Input
- Charge indicator is green if input voltage is > 15 V.
- Charge indicator is orange if input voltage is < 15 V.
- Charge rate is 4 Amps.
12 6543

2-2 Rear Panel Front and Rear Panel Connections
2-4 PN: 10410-00783 Rev. A MN25131A OM