qpcom QP-748MI Instructions for use

QP-748MI User Manual
Version 1.0
www.qpcom.com
Hardware User Manual
Industrial Managed Ethernet Switch
QP-748MI

QP-748MI User Manual
Version 1.0
www.qpcom.com
Contents
Overview ................................................................................................................................................. 1
Package Check List ............................................................................................................................ 1
Hardware Description ............................................................................................................................. 2
Front Panel Instruction...................................................................................................................... 2
Dimensions ......................................................................................................................................... 2
Top View ............................................................................................................................................ 3
LED Instruction................................................................................................................................... 3
Reset Button ...................................................................................................................................... 4
USB Port ............................................................................................................................................. 4
Hardware Installation ............................................................................................................................. 5
SFP Cabling......................................................................................................................................... 5
Wiring Power Inputs........................................................................................................................... 6
Wiring Fault Alarm............................................................................................................................. 7
Wiring Digital Inputs .......................................................................................................................... 7
Double-Secure Power Input Fault Alarm........................................................................................... 7
Mounting............................................................................................................................................. 8
Installation Steps ............................................................................................................................... 9
Specification .......................................................................................................................................... 10

QP-748MI User Manual
Version 1.0
1
Overview
This user manual is for QP-748MI is an industrial managed gigabit Ethernet switch with the following hardware
features:
Interface
▪MDI/MDI-X function supported on all copper ports
▪Embedded 8x Gigabit Ethernet ports + 4x 1000 SFP Slot
▪Store-and-forward switching architecture
Switch Properties
▪Up to 16K MAC Address Table supported
▪Up to 16000bytes Jumbo Frame supported
▪Up to 12Mbits Packet Buffer supported
Power Input
▪Redundant 12-48VDC power
Temperature
▪Standard operating temperature: -10°C ~ 60°C (14°F ~ 140°F)
▪Extended operating temperature: -40°C ~ 75°C (-40°F ~ 167°F)
▪Storage temperature: -40°C ~ 85°C (40°F ~ 185°F)
Mechanical Construction
▪Class IP30 protection
▪DIN-Rail Mounting, Optional Wall Mounting
PACKAGE CHECK LIST
The QP-748MI is shipped with the following items. Ensure that all the items are in the box. If any item
is missing or damaged, contact us for assistance.
▪QP-748MI switch x 1
▪Protective caps for 8x copper ports, 4x SFP slots, 1x USB port, and 1x RJ45 console port
▪User manual CD x 1
▪Wall mount brackets and screws (Optional)
▪RJ45 to RS232 Serial console cable x 1

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Hardware Description
FRONT PANEL INSTRUCTION
The following picture is the front panel for "QP-748MI".
DIMENSIONS
WxHxD: 72x145x118 mm

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TOP VIEW
This is the top view of the QP-748MI containing the
ground, power inputs, and fault alarm relay.
LED INSTRUCTION
System LEDs
LED
Color
Status
Description
PWR1
Green
On
Power is supplied on the power input 1.
Off
Power is not supplied on the power input 1.
PWR2
Green
On
Power is supplied on the power input 2.
Off
Power is not supplied on the power input 2.
Fault
Green
On
The system boots up and in normal operation.
Off
The system is powered off or during booting.
Red
On
The configured event of failure is triggered.
RM
Green
On
This device has the Ring Master.
Off
The Ring Master is not on the device.
Ring
Green
On
The Ring protocol is enabled and works normally.
Flickering
The Ring protocol is enabled, but works abnormally.
Off
The Ring protocol is disabled.

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Interface Status LEDs
LED
Color
Status
Description
SFP Slot
P9 to P12
(1000M)
Green
On
The 1000Mbps link of the fiber port is active.
Flickering
Data is transmitted on the fiber port at 1000Mbps.
Off
The 1000Mbps link of the fiber port is inactive.
LAN Port
P1 to P8
(1000M)
Green
On
The 1000Mbps link of the port is active.
Flickering
Data is transmitted on the port at 1000Mbps.
Off
The 1000Mbps link of the port is inactive.
LAN Port
P1 to P8
(10/100M)
Green
On
The 10/100Mbps link of the port is active.
Flickering
Data is transmitted on the port at 10/100Mbps.
Off
The 10/100Mbps link of the port is inactive.
RESET BUTTON
A multifunctional reset button is provided. Use a pointed object such as toothpick or paper clip
(straightened) to press the reset button.
Continuous
Seconds
Action
1
Save the running configuration to the USB device named "running-config".
4
Reboot the system.
More than 7
Reset the system to factory default and reboot it.
USB PORT
A USB port is available on the switch that is located between the Console port and Reset
button. This USB port provides the following features:
▪Backup/Restore Configurations
▪Auto-Load configuration from USB
▪Auto-Backup configuration to USB
▪Save system logs to USB

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Hardware Installation
SFP CABLING
There are 4x 1000 SFP Slot SFP Slots on the QP-748MIswitch. The 100Tx SFP module is not supported
in this model. The following table is the SFP modules that is recommend to the users.
Part No.
Wave
(nm)
Media
Power
(dBm)
Sen.
(dBm)
Code
Dist.
Temp.
1.25Gbps (Gigabit Ethernet/ 1000Base-X/ Fiber Channel SFP)
QPCOM-1000Base-X1
850
MMF
-9.5~-4
-17
SX
550m
0~70°C
QPCOM-1000Base-X2 (DDM)
1310
SMF
-9.5~-3
-20
LX
10km
0~70°C
QPCOM-1000Base-X3
1310
SMF
-9.5~-3
-20
LX
10km
-40~85°C
QPCOM-1000Base-X4 (DDM)
1310
SMF
-9.5~-3
-20
LX
10km
-40~85°C
1.25Gbps (1000Base-BX, Single Fiber Bi-Directional SFP)
QPCOM-1000Base-BX1 Dual-Rate
T1310
R1490
SMF
-9~-3
-20
1000BX10-U4
10km
0~70°C
QPCOM-1000Base-BX2 (DDM)
T1310
R1490
SMF
-9~-3
-20
1000BX10-U4
10km
-40~85°C
QPCOM-1000Base-BX3 Dual-Rate
T1490
R1310
SMF
-9~-3
-20
1000BX10-U4
10km
0~70°C
QPCOM-1000Base-BX4 (DDM)
T1490
R1310
SMF
-9~-3
-20
1000BX10-U4
10km
-40~85°C
Copper SFP (Gigabit Ethernet/1000BaseT)
QPCOM-1000Base-T
1.25Gbps
Copper
SFP-1000T-LOS
AutoNeg: On
100m
0~70°C
Insert SFP Module
1. Insert the SFP module. A triangle is available on the switch and SFP module.

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2. Push the SFP module down.
Remove SFP Module
1. Press and remove the SFP cable.
2. Open the SFP module and remove it.
WIRING POWER INPUTS
1. Insert the positive and negative wires into the PWR1 (+,-) and PWR2
(+,-) on the 4-contact terminal block connector.
2. Tighten the screws to prevent the wires from loosening.

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WIRING FAULT ALARM
1. Insert the wires into the left two contacts of the 4-contact terminal
block (Fault Alarm Relay).
2. Tighten the screws to prevent the wires from loosening.
3. The relay will detect the power and link failure.
4. Users can connect the relay to an alarm and buzzer so that when
the relay forms an open circuit, the users will be notified.
WIRING DIGITAL INPUTS
1. Insert the positive and negative wires into the right two contacts
(+,-) of the 4-contact terminal block (DI).
2. Tighten the screws to prevent the wires from loosening.
3. The system will detect the voltage go through the DI.
▪+13 to +30V for state "1"
▪-30 to +3V for state "0"
▪Max. input current: 8mA
DOUBLE-SECURE POWER INPUT FAULT ALARM
The power inputs are designed as a "common
negative", which implies that the negative input is
connected, but "double-secure" is supported to
prevent the unnotified failure of power from one of the
negative inputs. If one of the negative power input
fails, the system will detect it and the system will
trigger the event if the users set the fault alarm or
event log for powers.

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MOUNTING
Din-Rail Mounting
a. Screw the DIN-Rail bracket to the switch.
b. Insert the top of the DIN-Rail bracket to the DIN-
Rail track.
c. Pull down the DIN-Rail bracket to the DIN-Rail track and check if it is mounted tightly on the DIN-Rail
track.