HPE OfficeConnect 1950 12XGT 4SFP+ User manual

HPE OfficeConnect 1950 12XGT 4SFP+ Switch
Getting Started Guide
Part number: 5200-1204
Document version: 6W100-20160415

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i
Contents
Preparing for installation ····································································1
Safety recommendations···············································································································1
Examining the installation site·········································································································1
Temperature/humidity ············································································································2
Cleanliness ··························································································································2
EMI ····································································································································2
Laser safety ·························································································································3
Installation tools···························································································································3
Installation accessories ·················································································································3
Installing the switch ··········································································4
Installing the switch in a 19-inch rack·······························································································4
Mounting the switch on a workbench ·······························································································7
Grounding the switch····················································································································7
Grounding the switch with a grounding strip ···············································································8
Grounding the switch with a grounding conductor buried in the earth ground ····································9
Grounding the switch by using the AC power cord·······································································9
Connecting the power cord ··········································································································10
Connecting an AC power cord to the switch·············································································· 10
Connecting a DC power cord to the switch··············································································· 11
Verifying the installation ·············································································································· 12
Accessing the switch for the first time ·················································13
Logging in to the quick set-up CLI ·································································································13
Setting up the configuration environment ·················································································13
Connecting the console cable································································································13
Connecting the mini USB console cable ·················································································· 14
Setting terminal parameters···································································································16
Powering on the switch·········································································································16
Logging in to the Web interface ···································································································· 17
Setting up the configuration environment ·················································································17
Restrictions and guidelines····································································································17
Logging in to the Web interface for the first time········································································ 18
Setting up an IRF fabric···································································20
IRF fabric setup flowchart ············································································································20
Planning IRF fabric setup ············································································································21
Planning IRF fabric size and the installation site········································································ 21
Identifying the master switch and planning IRF member IDs························································21
Planning IRF topology and connections···················································································22
Identifying physical IRF ports on the member switches·······························································23
Planning the cabling scheme·································································································23
Configuring basic IRF settings······································································································24
Connecting the physical IRF ports·································································································24
Maintenance and troubleshooting ······················································25
Power module failure·················································································································· 25
Fixed power module failure ···································································································25
Fan failure ································································································································ 26
Configuration terminal display problems ·························································································26
No display·························································································································· 26
Garbled display···················································································································27
Appendix A Chassis views and technical specifications··························28
Chassis views ···························································································································28
Technical specifications ·············································································································· 28

ii
Appendix B Ports and LEDs ·····························································30
Ports········································································································································ 30
Console port·······················································································································30
Management Ethernet port···································································································· 30
1/10GBASE-T autosensing Ethernet port·················································································30
SFP+ port··························································································································31
LEDs ······································································································································· 33
System status LED··············································································································33
RPS status LED··················································································································34
Management Ethernet port LEDs ··························································································· 34
1/10GBASE-T autosensing Ethernet port LED ··········································································34
SFP+ port LED ··················································································································· 35
Appendix C Cooling system······························································36
Document conventions and icons ······················································37
Conventions······························································································································ 37
Network topology icons ···············································································································38
Support and other resources·····························································39
Accessing Hewlett Packard Enterprise Support················································································ 39
Accessing updates·····················································································································39
Websites ···························································································································40
Customer self repair ············································································································40
Remote support ·················································································································· 40
Documentation feedback ······································································································ 40
Index···························································································42

1
Preparing for installation
Table 1 HPE OfficeConnect 1950 12XGT 4SFP+ Switch
Product
code
HPE description
Alias
RMN
JH295A
HPE OfficeConnect 1950 12XGT
4SFP+ Switch
HPE 1950 12XGT 4SFP+
Switch
BJNGA-AD0067
IMPORTANT:
For regulatory identification purposes, the switch is assigned a regulatory model number (RMN).
The RMN should not be confused with the marketing name HPE OfficeConnect 1950 12XGT 4SFP+
Switch, or product code.
Safety recommendations
To avoid any equipment damage or bodily injury caused by improper use, read the following safety
recommendations before installation. Note that the recommendations do not cover every possible
hazardous condition.
Before cleaning the switch, remove all power cords from the switch. Do not clean the switch
with wet cloth or liquid.
Do not place the switch near water or in a damp environment. Prevent water or moisture from
entering the switch chassis.
Do not place the switch on an unstable case or desk. The switch might be severely damaged in
case of a fall.
Ensure good ventilation of the equipment room and keep the air inlet and outlet vents of the
switch free of obstruction.
Connect the yellow-green protection grounding cable before power-on.
Make sure the operating voltage is in the required range.
To avoid electrical shocks, do not open the chassis while the switch is operating.
To avoid damage caused by improper operation, do not open the chassis even if the switch is
powered off.
When replacing power modules, wear an ESD wrist strap to avoid damaging the units.
Examining the installation site
The switch must be used indoors. You can mount your switch in a rack or on a workbench, but make
sure:
Adequate clearance is reserved at the air inlet and outlet vents for ventilation.
The rack or workbench has a good ventilation system.
Identify the hot aisle and cold aisle at the installation site, and make sure ambient air flows into
the switch from the cold aisle and exhausts to the hot aisle.
Identify the airflow designs of neighboring devices, and prevent hot air flowing out of the
neighboring device from entering the device.
The rack is sturdy enough to support the switch and its accessories.
The rack or workbench is reliably grounded.

2
To ensure correct operation and long service life of your switch, install it in an environment that meets
the requirements described in the following subsections.
Temperature/humidity
Maintain temperature and humidity in the equipment room as described in "Appendix A Chassis
views and technical specifications."
Lasting high relative humidity can cause poor insulation, electricity leakage, mechanical
property change of materials, and metal corrosion.
Lasting low relative humidity can cause washer contraction and ESD and bring problems
including loose captive screws and circuit failure.
High temperature can accelerate the aging of insulation materials and significantly lower the
reliability and lifespan of the switch.
For the temperature and humidity requirements of different switch models, see "Technical
specifications."
Cleanliness
Dust buildup on the chassis might result in electrostatic adsorption, which causes poor contact of
metal components and contact points, especially when indoor relative humidity is low. In the worst
case, electrostatic adsorption can cause communication failure.
Table 2 Dust concentration limit in the equipment room
Substance
Concentration limit (particles/m³)
Dust
≤3 x 104 (no visible dust on the tabletop over three days)
NOTE:
Dust diameter ≥ 5 μm
The equipment room must also meet strict limits on salts, acids, and sulfides to eliminate corrosion
and premature aging of components, as shown in Table 3.
Table 3 Harmful gas limits in the equipment room
Gas
Maximum concentration (mg/m3)
SO2
0.2
H2S
0.006
NH3
0.05
Cl2
0.01
EMI
All electromagnetic interference (EMI) sources, from outside or inside of the switch and application
system, adversely affect the switch in the following ways:
A conduction pattern of capacitance coupling.
Inductance coupling.
Electromagnetic wave radiation.
Common impedance (including the grounding system) coupling.

3
To prevent EMI, perform the following tasks:
If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE)
to filter interference from the power grid.
Keep the switch far away from radio transmitting stations, radar stations, and high-frequency
devices.
Use electromagnetic shielding, for example, shielded interface cables, when necessary.
Laser safety
WARNING!
The switch is Class 1 laser device. Do not stare into any fiber port when the switch has power. The
laser light emitted from the optical fiber might hurt your eyes.
Installation tools
The following installation tools are user supplied:
Flat-blade screwdriver.
Phillips screwdriver.
ESD wrist strap.
Installation accessories
Table 4 Installation accessories
Product code
Description
Quantity
5066-0850
1 U four-hole mounting bracket kit (including one pair
of mounting brackets and eight M4 countersunk
screws) (provided)
1 kit
N/A
M6 screw and floating nut (user supplied)
N/A
5185-9292
Grounding cable (provided)
1
5184-6719
Console cable (provided)
1
5184-7298
Rubber feet (provided)
1

4
Installing the switch
CAUTION:
Keep the tamper-proof seal on a mounting screw on the chassis cover intact, and if you want to open
the chassis, contact Hewlett Packard Enterprise for permission. Otherwise, Hewlett Packard
Enterprise shall not be liable for any consequence.
Figure 1 Hardware installation flow
Installing the switch in a 19-inch rack
Use the front mounting brackets to install the switch in a rack.
Start
Install the switch
Ground the switch
Connect power cords
Verify the installation
Power on the switch
Operating correctly? Power off the
switch
Troubleshoot
the switch
Yes
No
End
Install transceiver modules
and cables

5
Figure 2 Front mounting bracket
(1) Hole for attaching the bracket to a rack
(2) Hole for attaching the bracket to the switch chassis
NOTE:
If a rack shelf is available, you can put the switch on the rack shelf, slide the switch to an appropriate
location, and attach the switch to the rack by using the mounting brackets.
This task requires two people.
To install the switch in a 19-inch rack by using the front mounting brackets:
1. Identify the mounting positions.
2. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
3. Attach the front mounting brackets to the chassis:
a. Unpack the front mounting brackets and the M4 screws (provided with the switch) for
attaching the brackets to the switch chassis.
b. Align the round holes in the wide flange of one front mounting bracket with the screw holes
in the chassis.
You can install the front mounting bracket on the port side or power module side of the
switch.
c. Use M4 screws to attach the mounting bracket to the chassis.
d. Repeat the proceeding two steps to attach the other mounting bracket to the chassis.
Figure 3 Attaching the front mounting bracket to the port side
12

6
Figure 4 Attaching the front mounting bracket to the power module side
4. Mount the chassis in the rack:
a. One person supports the chassis bottom with one hand, holds the front part of the chassis
with the other hand, and pushes the chassis into the rack gently
b. The other person uses M6 screws and cage nuts (user supplied) to attach the switch to the
rack.
Figure 5 Mounting the switch in the rack (front mounting brackets at the port side)

7
Figure 6 Mounting the switch in the rack (front mounting brackets at the power module
side)
Mounting the switch on a workbench
IMPORTANT:
Ensure good ventilation and 10 cm (3.9 in) of clearance around the chassis for heat dissipation.
Avoid placing heavy objects on the switch.
To mount the switch on a workbench:
1. Verify that the workbench is sturdy and reliably grounded.
2. Place the switch with bottom up, and clean the round holes in the chassis bottom with dry cloth.
3. Attach the rubber feet to the four round holes in the chassis bottom.
4. Place the switch with upside up on the workbench.
Grounding the switch
WARNING!
Correctly connecting the switch grounding cable is crucial to lightning protection and EMI protection.
The power input end of the switch has a noise filter, whose central ground is directly connected to the
chassis to form the chassis ground (commonly known as PGND). You must securely connect this
chassis ground to the earth so the faradism and leakage electricity can be safely released to the
earth to minimize EMI susceptibility of the switch.
You can ground the switch in one of the following ways, depending on the grounding conditions
available at the installation site:
Grounding the switch with a grounding strip
Grounding the switch with a grounding conductor buried in the earth ground
Grounding the switch by using the AC power cord

8
NOTE:
The power and grounding terminals in this section are for illustration only.
Grounding the switch with a grounding strip
WARNING!
Connect the grounding cable to the grounding system in the equipment room. Do not connect it to a
fire main or lightning rod.
If a grounding strip is available at the installation site, connect the grounding cable to the grounding
strip.
Connecting the grounding cable to the chassis
1. Remove the grounding screw from the rear panel of the switch chassis.
2. Use the grounding screw to attach the ring terminal of the grounding cable to the grounding
screw hole.
Figure 7 Connecting the grounding cable to the chassis
(1) Grounding cable
(2) Grounding hole
(3) Grounding sign
(4) Ring terminal
(5) Grounding screw
3. Verify that the grounding cable has been securely connected to the rear grounding point.
Connecting the grounding cable to a grounding strip
1. Cut the grounding cable to a length required for connecting to the grounding strip.
2. Use a wire stripper to strip 20 mm (0.79 in) of insulation off the end of the grounding cable. Then
use needle-nose pliers to bend the bare metal part to the shape as shown in Figure 8. Make
sure the bended part can securely attached to the grounding post on the grounding strip.
3. Attach the bended part of the grounding cable to the grounding post and use the hex nut to
fasten the bended part to the post.
1
2
3
4
5

9
Figure 8 Connecting the grounding cable to the grounding strip
(1) Grounding post
(2) Grounding strip
(3) Grounding cable
(4) Hex nut
Grounding the switch with a grounding conductor buried in
the earth ground
If the installation site has no grounding strips, but earth ground is available, hammer a 0.5 m (1.64 ft)
or longer angle iron or steel tube into the earth ground to serve as a grounding conductor.
The dimensions of the angle iron must be a minimum of 50 × 50 × 5 mm (1.97 × 1.97 × 0.20 in). The
steel tube must be zinc-coated and its wall thickness must be a minimum of 3.5 mm (0.14 in).
Weld the yellow-green grounding cable to the angel iron or steel tube and treat the joint for corrosion
protection.
Figure 9 Grounding the switch by burying the grounding conductor into the earth ground
(1) Grounding screw
(2) Grounding cable
(3) Earth
(4) Joint
(5) Grounding conductor
(6) Chassis rear panel
Grounding the switch by using the AC power cord
If the installation site has no grounding strips or earth ground, you ground an AC-powered switch
through the PE wire of the power cord. Make sure of the following information:
The power cord has a PE terminal.
The ground contact in the power outlet is securely connected to the ground in the power
distribution room or on the AC transformer side.
The power cord is securely connected to the power outlet.
1 2
34
4
1
2
3
5
6

10
Figure 10 Grounding the switch by using the AC power cord
(1) Power cord that has a PE terminal
(2) Chassis rear panel
NOTE:
If the ground contact in the power outlet is not connected to the ground, report the problem and
reconstruct the grounding system.
As a best practice to guarantee the grounding effect, ground the switch by connecting the
grounding cable provided with the switch to the grounding strip in the equipment room.
Connecting the power cord
CAUTION:
Provide a circuit breaker for each power module and make sure the circuit breaker is off before
installation.
Table 5 Power cord connection procedures at a glance
Power mode
Connection procedure reference
AC input
Connecting an AC power cord to the switch
+12 VDC RPS input (RPS800-A)
Connecting a DC power cord to the switch
Connecting an AC power cord to the switch
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Connect one end of the AC power cord to the AC-input power receptacle on the switch.
3. Insert the cable tie through the cable bridge.
4. Use the cable tie to secure the AC power cord to the cable bridge.
5. Connect the other end of the power cord to the AC power outlet.
1
2

11
Figure 11 Connecting an AC power cord to the switch (1)
Figure 12 Connecting an AC power cord to the switch (2)
Connecting a DC power cord to the switch
WARNING!
RPS power cords are required if the RPS power source is used.
To connect a DC power cord to the switch:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Remove the filler panel from the DC receptacle as shown in Figure 13. Install the filler panel if
no power cord is to be connected to the receptacle.
3. Correctly orient the plug at one end of the cable with the power receptacle on the power
module, and insert the plug into the power receptacle. See callout 1 in Figure 14.
If you cannot insert the plug into the receptacle, re-orient the plug rather than use excessive
force to push it in.
4. Tighten the screws on the plug with a flat-blade screwdriver to secure the plug in the power
receptacle. See callout 2 in Figure 14.
5. Connect the other end of the power cord to an external RPS power source.

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Figure 13 Connecting a DC power cord to the switch (1)
Figure 14 Connecting a DC power cord to the switch (2)
Verifying the installation
After you complete the installation, verify the following information:
There is enough space for heat dissipation around the switch, and the rack or workbench is
stable.
The grounding cable is securely connected.
The correct power source is used.
The power cords are correctly connected.
All the interface cables are cabled indoors. If any cable is routed outdoors, verify that the socket
strip with lightning protection and lightning arresters for network ports have been correctly
connected.
2
1
2
1

13
Accessing the switch for the first time
You can use one of the following default methods to access the switch:
Logging in to the quick set-up CLI—For quick set-up of key device configuration.
Logging in to the Web interface—For detailed device configuration.
Logging in to the quick set-up CLI
Setting up the configuration environment
You can access the switch through the serial console port or the mini USB console port. As a best
practice, use the serial port to access the switch. To access the switch through the mini USB console
port, you need to prepare the mini USB console cable.
Only the mini USB console port takes effect if you connect both the serial console port and mini USB
console port.
Figure 15 Connecting the console port to a PC
Connecting the console cable
A console cable is an 8-core shielded cable, with a crimped RJ-45 connector at one end for
connecting to the console port of the switch, and a DB-9 female connector at the other end for
connecting to the serial port on the console terminal.
Figure 16 Console cable
Main label
1
8B side
B
Pin 9
Pin 1
A side
A

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Table 6 Console port signaling and pinout
RJ-45
Signal
DB-9
Signal
1
RTS
8
CTS
2
DTR
6
DSR
3
TXD
2
RXD
4
SG
5
SG
5
SG
5
SG
6
RXD
3
TXD
7
DSR
4
DTR
8
CTS
7
RTS
To connect a configuration terminal (for example, a PC) to the switch:
1. Connect the DB-9 female connector of the console cable to the serial port of the PC.
2. Connect the RJ-45 connector to the console port of the switch.
NOTE:
Identify the mark on the console port and make sure you are connecting to the correct port.
The serial ports on PCs do not support hot swapping. To connect a PC to an operating switch,
first connect the PC end. To disconnect a PC from an operating switch, first disconnect the switch
end.
Connecting the mini USB console cable
A mini USB console cable has a mini USB-Type B connector at one end to connect to the mini USB
console port of the switch, and a standard USB Type Aconnector at the other end to connect to the
USB port on the PC.
To connect to the PC through the mini USB console cable:
1. Connect the standard USB Type A connector to the USB port of the PC.
2. Connect the mini USB Type B connector to the mini USB console port of the switch.
3. Click the following link, or copy it to the address bar on the browser to log in to download page
of the USB console driver, and download the driver.
http://www.exar.com/connectivity/uart-and-bridging-solutions/usb-uarts/xr21v1410
4. Select a driver program according to the operating system you use:
XR21V1410_XR21B1411_Windows_Ver1840_x86_Installer.EXE—32-bit operating
system.
XR21V1410_XR21B1411_Windows_Ver1840_x64_Installer.EXE—64-bit operating
system.
5. Click Next on the installation wizard.

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Figure 17 Device Driver Installation Wizard
6. Click Continue Anyway if the following dialog box appears.
Figure 18 Software Installation
7. Click Finish.

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Figure 19 Completing the device driver installation wizard
Setting terminal parameters
To configure and manage the switch through the console port, you must run a terminal emulator
program, TeraTermPro or PuTTY, on your PC. You can use the emulator program to connect a
network device, a Telnet site, or an SSH site. For more information about the terminal emulator
programs, see the user guides for these programs.
The following are the required terminal settings:
Bits per second—38400.
Data bits—8.
Parity—None.
Stop bits—1.
Flow control—None.
Powering on the switch
Before powering on the switch, verify that the following conditions are met:
The power cord is correctly connected.
The input power voltage meets the requirement of the switch.
The console cable is correctly connected.
The PC has started, and its serial port settings are consistent with the console port settings on
the switch.
Power on the switch. During the startup process, you can access Boot ROM menus to perform tasks
such as software upgrade and file management. The Boot ROM interface and menu options differ
with software versions. For more information about Boot ROM menu options, see the
software-matching release notes for the device.