HP JG221A User manual

HP A3100 v2 Switch Series
Installation Guide
HP A3100-8 v2 SI Switch (JG221A)
HP A3100-16 v2 SI Switch (JG222A)
HP A3100-24 v2 SI Switch (JG223A)
HP A3100-8 v2 EI Switch (JD318B)
HP A3100-16 v2 EI Switch (JD319B)
HP A3100-24 v2 EI Switch (JD320B)
HP A3100-8-PoE v2 EI Switch (JD311B)
HP A3100-16-PoE v2 EI Switch (JD312B)
HP A3100-24-PoE v2 EI Switch (JD313B)
Part number: 5998-1961
Document version: 6W100-20110909

Legal and notice information
© Copyright 2011 Hewlett-Packard Development Company, L.P.
No part of this documentation may be reproduced or transmitted in any form or by any means without prior
written consent of Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice.
HEWLETT-PACKARD COMPANY MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS
MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not be liable for errors contained herein or for
incidental or consequential damages in connection with the furnishing, performance, or use of this material.
The only warranties for HP products and services are set forth in the express warranty statements
accompanying such products and services. Nothing herein should be construed as constituting an additional
warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

i
Contents
Product overview······························································································································································ 1
Switch models····································································································································································1
Panel views ········································································································································································1
A3100-24 v2 SI/A3100-24 v2 EI·························································································································1
A3100-16 v2 SI/A3100-16 v2 EI·························································································································2
A3100-8 v2 SI/A3100-8 v2 EI······························································································································3
A3100-24-PoE v2 EI ················································································································································3
A3100-16-PoE v2 EI ················································································································································4
A3100-8-PoE v2 EI···················································································································································5
Preparing for installation················································································································································· 7
Safety recommendations ··················································································································································7
Examining the installation site ·········································································································································7
Electricity safety ························································································································································7
ESD prevention ·························································································································································7
Laser safety ·······························································································································································8
Temperature/humidity ·············································································································································8
Cleanness··································································································································································9
EMI·············································································································································································9
Grounding······························································································································································ 10
Cooling··································································································································································· 10
Space······································································································································································ 10
Installation tools······························································································································································ 11
Installing the switch························································································································································12
Installing the switch························································································································································ 12
Selecting an installation method·························································································································· 12
Installation accessories ········································································································································· 13
Installing the switch into the 19-inch rack··········································································································· 15
Mounting the switch on a workbench················································································································· 20
Grounding the switch ···················································································································································· 21
Grounding cable ··················································································································································· 21
Grounding the switch with a grounding strip····································································································· 21
Grounding the switch with a grounding conductor buried in the earth ground············································· 23
Grounding the switch by using the AC power cord·························································································· 24
Connecting the power cord ·········································································································································· 24
Connecting an AC power cord to the switch····································································································· 24
Connecting the DC power cord··························································································································· 25
Verifying the installation················································································································································ 26
Accessing the switch for the first time··························································································································27
Setting up the configuration environment···················································································································· 27
Connecting the console cable ······································································································································ 27
Console cable························································································································································ 27
Connection procedure ·········································································································································· 27
Setting terminal parameters ·········································································································································· 28
Powering on the switch ················································································································································· 31
Verification before power-on ······························································································································· 31
Powering on the switch········································································································································· 31
Initially configuring the switch ······································································································································ 32
Configuring a login authentication method········································································································ 32

ii
Configuring the basic access function ················································································································ 33
Connecting the switch to the network··························································································································34
Connecting your switch to the network through twisted pair cables········································································ 34
Connecting your switch to the network through optical fibers ·················································································· 34
Installing an SFP transceiver module··················································································································· 35
Connecting an optical fiber connector to an SFP transceiver module····························································· 35
Troubleshooting······························································································································································37
Configuration terminal problems·································································································································· 37
Power supply failure ······················································································································································ 37
Interface failure ······························································································································································ 38
PoE system failure ·························································································································································· 38
Appendix A Technical specifications···························································································································39
A3100 v2 SI Switch Series technical specifications ·································································································· 39
A3100 v2 EI Switch Series technical specifications ·································································································· 40
Non PoE switches technical specifications ········································································································· 40
PoE switches technical specifications·················································································································· 41
Appendix B Ports and LEDs ··········································································································································44
Ports················································································································································································· 44
Console port ·························································································································································· 44
10/100Base-TX Ethernet port······························································································································ 44
Combo interface···················································································································································· 44
10/100/1000Base-T Ethernet port ···················································································································· 45
100/1000Base-X SFP port ·································································································································· 45
LEDs ················································································································································································· 46
LEDs for the non PoE switches······························································································································ 47
LEDs on the PoE switches······································································································································ 48
Appendix C Ethernet twisted pair cable ·····················································································································50
Ethernet twisted pair cable············································································································································ 50
RJ-45 connector ····················································································································································· 50
Cable pinouts························································································································································· 50
Cable type ····························································································································································· 50
Pin assignments ····················································································································································· 52
Making an Ethernet twisted pair cable··············································································································· 53
Index················································································································································································54

1
Product overview
Switch models
Table 1 Switch models in the HP A3100 v2 Switch Series
Sub-series
Model
Product code
Description
Alias
HP A3100 v2 SI
Switch Series
Non
PoE
JG221A
HP A3100-8 v2 SI Switch
A3100-8 v2 SI
JG222A
HP A3100-16 v2 SI Switch
A3100-16 v2 SI
JG223A
HP A3100-24 v2 SI Switch
A3100-24 v2 SI
HP A3100 v2 EI
Switch Series
Non
PoE
JD318B
HP A3100-8 v2 EI Switch
A3100-8 v2 EI
JD319B
HP A3100-16 v2 EI Switch
A3100-16 v2 EI
JD320B
HP A3100-24 v2 EI Switch
A3100-24 v2 EI
PoE
JD311B
HP A3100-8-PoE v2 EI Switch
A3100-8-PoE v2 EI
JD312B
HP A3100-16-PoE v2 EI Switch
A3100-16-PoE v2 EI
JD313B
HP A3100-24-PoE v2 EI Switch
A3100-24-PoE v2 EI
Panel views
A3100-24 v2 SI/A3100-24 v2 EI
Front panel
Figure 1 A3100-24 v2 SI/A3100-24 v2 EI front panel
12 3
456
78
(1) Speed LED for a 10/100Base-TX Ethernet port
(2) 10/100Base-TX Ethernet port
(3) Speed LED for a combo interface
(4) Console port
(5) Combo interface (10/100/1000Base-T Ethernet port on the left, 100/1000Base-X SFP port on the right)
(6) Link/Act LED for a combo interface
(7) Link/Act LED for a 10/100Base-TX Ethernet port
(8) Power LED

2
Rear panel
Figure 2 A3100-24 v2 SI/A3100-24 v2 EI rear panel
12
(1) Grounding screw
(2) AC-input power receptacle
A3100-16 v2 SI/A3100-16 v2 EI
Front panel
Figure 3 A3100-16 v2 SI/A3100-16 v2 EI front panel
123
4
5
678
(1) Speed LED for a 10/100Base-TX Ethernet port
(2) 10/100Base-TX Ethernet ports
(3) Speed LED for a combo interface
(4) Console port
(5) Combo interface (10/100/1000Base-T Ethernet port on the left, 100/1000Base-X SFP port on the right)
(6) Link/Act LED for a combo interface
(7) Link/Act LED for a 10/100Base-TX Ethernet port
(8) Power LED
Rear panel
Figure 4 A3100-16 v2 SI/A3100-16 v2 EI rear panel
12
(1) Grounding screw
(2) AC-input power receptacle

3
A3100-8 v2 SI/A3100-8 v2 EI
Front panel
Figure 5 A3100-8 v2 SI/A3100-8 v2 EI front panel
1 2 3
4
5
678
(1) Speed LED for a 10/100Base-TX Ethernet port
(2) 10/100Base-TX Ethernet ports
(3) Speed LED for a combo interface
(4) Console port
(5) Combo interface (10/100/1000Base-T Ethernet port on the left, 100/1000Base-X SFP port on the right)
(6) Link/Act LED for a combo interface
(7) Link/Act LED for a 10/100Base-TX Ethernet port
(8) Power LED
Rear panel
Figure 6 A3100-8 v2 SI/A3100-8 v2 EI rear panel
12
(1) Grounding screw
(2) AC-input power receptacle
A3100-24-PoE v2 EI
Front panel
Figure 7 A3100-24-PoE v2 EI front panel
12 3 4 56
7
8
9
10
(1) 10/100Base-TX Ethernet port
(2) 10/100Base-TX Ethernet port LEDs (left: yellow, right: green)
(3) Combo interface (10/100/1000Base-T Ethernet port on the left, 100/1000Base-X SFP port on the right)

4
(4) LINK LED for a combo interface
(5) Console port
(6) Port LED mode switching (Mode) button
(7) Power (PWR) LED
(8) Port mode (A/L) LED
(9) Port mode (D/S) LED
(10) ACT LED for a combo interface
Rear panel
Figure 8 A3100-24-PoE v2 EI rear panel
12
3
(1) AC-input power receptacle
(2) DC-input terminal block
(3) Grounding screw
A3100-16-PoE v2 EI
Front panel
Figure 9 A3100-16-PoE v2 EI front panel
1 2 3 456
7
8
9
10
(1) 10/100Base-TX Ethernet port
(2) 10/100Base-TX Ethernet port LEDs (left: yellow, right: green)
(3) Combo interface (10/100/1000Base-T Ethernet port on the left, 100/1000Base-X SFP port on the right)
(4) LINK LED for a combo interface
(5) Console port
(6) Port LED mode switching (Mode) button
(7) Power (PWR) LED
(8) Port mode (A/L) LED
(9) Port mode (D/S) LED
(10) ACT LED for a combo interface

5
Rear panel
Figure 10 A3100-16-PoE v2 EI rear panel
1
2
(1) AC-input power receptacle
(2) DC-input terminal block
(3) Grounding screw
A3100-8-PoE v2 EI
Front panel
Figure 11 A3100-8-PoE v2 EI front panel
12 3 4 56
7
8
9
10
(1) 10/100Base-TX Ethernet port
(2) 10/100Base-TX Ethernet port LEDs (left: yellow, right: green)
(3) Combo interface (10/100/1000Base-T Ethernet port on the left, 100/1000Base-X SFP port on the right)
(4) LINK LED for a combo interface
(5) Console port
(6) Port LED mode switching (Mode) button
(7) Power (PWR) LED
(8) Port mode (A/L) LED
(9) Port mode (D/S) LED
(10) ACT LED for a combo interface
Rear panel
Figure 12 A3100-8-PoE v2 EI rear panel
后面板
1
2
(1) AC-input power receptacle
(2) Grounding screw

6
Right side panel
The A3100-8-PoE v2 EI switch has one security lock slot on the right-side panel to prevent theft. You must
purchase a cable lock separately.
Figure 13 A3100-8-PoE v2 EI left side panel
1
(1) Security lock slot

7
Preparing for installation
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, unplug 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.
Make sure that the ground is dry and flat and anti-slip measures are in place.
Do not place the switch on an unstable case or desk. The switch might be severely damaged in case of
a fall.
Keep the chassis and installation tools away from walk areas.
Do not wear loose clothing, jewelry (for example, necklace), or any other objects that could get caught
in the chassis when you install and maintain the switch.
To avoid electrical shocks, do not open the chassis while the switch is operating or when the switch is
just powered off.
Examining the installation site
The A3100 v2 Switch Series must be used indoors. To ensure normal operation and long service life of your
switch, install it in an environment that meets the requirements described in the following subsections.
Electricity safety
Clear the work area of possible hazards, such as ungrounded power extension cables, missing safety
grounds, and wet floors.
Make sure that the operating voltage is as required.
Locate the emergency power-off switch in the room before installation. Shut the power off at once in
case accident occurs.
Unplug all the external cables (including power cords) before moving the chassis.
Always check that the power has been disconnected.
ESD prevention
To prevent the electronic components from being damaged by the electrostatic discharge (ESD), you should
not only take ESD measures where the switch is located, but also take the following precautions:
Make sure the switch is well grounded. For how to ground the switch, see ―Grounding the switch.‖
Always wear an ESD-preventive wrist strap when installing hot swappable modules.
To use the ESD-preventive wrist strap:

8
1. Wear the wrist strap on your wrist.
2. Lock the wrist strap tight around your wrist to keep good contact with the skin.
3. Attach the ESD-preventive wrist strap to a post on the rack or ground it by using other methods.
Figure 14 Use an ESD-preventive wrist strap
1
(1) Rack post
Laser safety
The A3100 v2 switches are Class 1 laser devices.
WARNING!
Do not stare into any fiber port when the switch has power. The laser light emitted from the optical fiber
may hurt your eyes.
Temperature/humidity
Maintain appropriate temperature and humidity in the equipment room.
Lasting high relative humidity can cause poor insulation, electricity creepage, 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.
Table 2 Temperature requirements
Temperature
Range
Operating temperature
0°C to 45°C (32°F to 113°F)
Storage temperature
–40°C to +70°C (–40°F to +158°F)

9
CAUTION:
If condensation appears on the switch when you move it to a high-temperature environment, dry the switch
before powering it on to avoid short circuits.
Table 3 Humidity requirements
Humidity
Range
Operating humidity (noncondensing)
10% to 95%
Storage humidity (noncondensing)
5% to 95%
Cleanness
Dust buildup on the chassis may 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 4 Dust concentration limit in the equipment room
Substance
Concentration limit (particles/cu m)
Dust particles
≤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 5.
Table 5 Harmful gas limits in the equipment room
Gas
Max. (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 a conduction pattern of capacitance coupling, inductance coupling,
electromagnetic wave radiation, or common impedance (including the grounding system) coupling. To
prevent EMI, take the following actions:
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.

10
Route interface cables only indoors to prevent signal ports from getting damaged by overvoltage or
overcurrent caused by lightning strikes.
Grounding
Using a good grounding system to protect your switch against lightning shocks, interferences, and ESD is
essential to the operating reliability of your switch. Make sure that the resistance between the chassis and
ground is less than 1.5 ohm. For more information about grounding the A3100 v2 Switch Series, see
―Grounding the switch.‖
Cooling
The cooling system of the A3100 v2 Switch Series varies by the switch model:
Non PoE switches (fanless): There are openings on the left, right, and rear of the switch for natural heat
dissipation.
PoE switches (built-in fans): Fans blow air from the left to the right of the chassis for heat dissipation. See
Figure 15.
Figure 15 Airflow through a PoE switch
1
2
(1) Air intake
(2) Air exhaust
For adequate heat dissipation, plan the installation site according to the airflow of your switch, and adhere
to the following requirements:
Leave a clearance of at least 10 cm (3.94 in) around the air intake and exhaust vents.
Consider the heat dissipation of the installation site when determining air-conditioning requirements to
ensure that cool air can enter the switch.
Make sure the hot air generated by equipment at the bottom of the rack is not drawn in the intake of the
equipment above.
The installation site has a good cooling system.
Space
For adequate ventilation and ease of maintenance, adhere to the following requirements:
The clearance between the rack and walls or other devices is at least 1 m (3.28 ft).
The headroom in the equipment room is no less than 3 m (9.84 ft).

11
Installation tools
Table 6 Tool list
Category
Tool
Measuring and marking tools
Long tape, ruler of 1 m (3.28 ft), gradienter, marker, chalk line, and pencil
Drills
Percussion drill, electric drill, and several auxiliary drill bits
Fastening tools
Flat-blade screwdriver P4-75 mm
Phillips screwdriver P1-100 mm, P2-150 mm, and P3-250 mm
Socket wrench M5
Socket wrench M6
Small tools
Needle-nose pliers, diagonal pliers, combination pliers, wire-stripping pliers,
crimping pliers, RJ-45 crimping pliers
Auxiliary tools
ESD-preventive wrist strap, hair brush, tweezers, paper knife, hand bellows,
electric iron, solder wire, ladder, cable stripper, vacuum cleaner, crowbar,
rubber hammer, and blower
Tools for fiber-optic cleaning
Lint-free paper and optical fiber microscope
Equipment
Multimeter, 500 V Megohmmeter for measuring the insulation resistance,
error detector, optical power meter, and earth resistance tester
NOTE:
Tools and equipment are not supplied with the switch. Prepare them yourself as needed.

12
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 the local agent of HP for permission. Otherwise, HP shall not be liable for any
consequence caused thereby.
Figure 16 Hardware installation flow
Ground the switch
Install the switch
to a specific
position
Start
Connect the power cord
Verify the installation
Power on the switch
Operating properly? Power off the switch
Troubleshoot
the switch
No
Yes
End
Installing the switch
Selecting an installation method
The A3100 v2 Switch Series supports multiple installation methods. You can select one as needed.
Table 7 A3100 v2 Switch Series installation methods
Switch model
Installation methods
Installation accessories
A3100-24 v2 SI
A3100-24 v2 EI
Installing the switch into the
19-inch rack (Rack mounting by
using front mounting brackets)
Front mounting bracket. See callout A in
Figure 17 (supplied with the switch).

13
Switch model
Installation methods
Installation accessories
Mounting the switch on a
workbench
Rubber pad: See Figure 19 (supplied
with the switch).
A3100-16 v2 SI
A3100-16 v2 EI
Installing the switch into the
19-inch rack (Rack mounting by
using front mounting brackets)
Front mounting bracket: HP A3100-16
Rack Mount Kit (JD321A).
See callout C in Figure 17 (optional).
Mounting the switch on a
workbench
Rubber pad: See Figure 19 (supplied
with the switch).
A3100-8 v2 SI
A3100-8 v2 EI
Installing the switch into the
19-inch rack (Rack mounting by
using front mounting brackets)
Front mounting bracket: HP A3100-8
Rack Mount Kit (JD322A).
See callout B in Figure 17 (optional).
Mounting the switch on a
workbench
Rubber pad: See Figure 19 (supplied
with the switch).
A3100-24-PoE v2 EI
Installing the switch into the
19-inch rack (Rack mounting by
using front and rear mounting
brackets)
Front mounting bracket. See callout A in
Figure 17 (supplied with the switch).
Rear mounting bracket: See Figure 18
(supplied with the switch).
Mounting the switch on a
workbench
Rubber pad: See Figure 19 (supplied
with the switch).
A3100-16-PoE v2 EI
A3100-8-PoE v2 EI
Installing the switch into the
19-inch rack (Rack mounting by
using front mounting brackets)
Front mounting bracket: HP
A3100-16-PoE and 8-PoE Rack Mount
Kit (JD323A).
See callout D in Figure 17 (optional).
Mounting the switch on a
workbench
Rubber pad: See Figure 19 (supplied
with the switch).
Installation accessories
Mounting brackets for rack mounting
The A3100 v2 Switch Series provides different mounting brackets for different models. Select them as
required.

14
Figure 17 Front mounting brackets
(A) (B:JD322A)
(C:JD321A) (D:JD323A)
1
2
3
1
2
3
1
2
3
1
2
3
(1) Screw hole (for M6 screw) for fixing the front mounting bracket to the rack
(2) Screw hole for fixing the front mounting bracket to the switch
(3) M4 screws for fixing the front mounting bracket to the switch
Figure 18 Rear mounting bracket
1
2
(1) Screw hole (for M6 screw) for fixing the rear mounting bracket to the rack
(2) Load-bearing screw (installed to the switch)

15
Rubber pads
Each A3100 v2 switch provides four rubber pads, as shown in Figure 19. Before mounting the switch to a
workbench, attach the four rubber pads to the switch bottom first.
Figure 19 Rubber pad appearance
1
(1) Rubber pad
Installing the switch into the 19-inch rack
CAUTION:
Ensure a clearance of 1U (44.45 mm, or 1.75 in) between equipment for heat dissipation.
For a switch with a depth greater than 300 mm (11.81 in), the front mounting brackets only secure the
switch rather than bear its weight. To mount this switch to a rack, you need to use front mounting
brackets and other accessories. For example, use front mounting brackets and rear mounting brackets
(for more information, see “Rack mounting by using front and rear mounting brackets.”), or use front
mounting brackets and a rack shelf (if there is a rack shelf on the rack, put the switch on the rack shelf,
move the switch to an appropriate position, and fix the switch by using front mounting brackets.).
Rack mounting by using front mounting brackets
NOTE:
The installation procedures for front mounting brackets with different length are similar. The following uses
front mounting brackets supplied with the switch as an example.
To install the switch to the rack by using front mounting brackets:
1. Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well grounded,
check that the rack is sturdy and well grounded.
2. Unpack the screws (packed with the front mounting brackets), and install the front mounting brackets
to the switch with the screws. See Figure 20.

16
Figure 20 Install the front mounting brackets
1
(1) Chassis front panel
3. Determine where to install the switch in the rack, and install the cage nuts to the corresponding
positions on the front rack posts.
4. Supporting the bottom of the switch, move the switch to the appropriate position. Have another person
to install the mounting brackets to the rack posts with the M6 screws. See Figure 21.
Figure 21 Mount the switch to the rack by using front mounting brackets
1
2
3
1
(1) Front rack posts
(2) Chassis front panel
(3) Front mounting bracket
Rack mounting by using front and rear mounting brackets
To mount the switch to the rack by using front and rear mounting brackets:
1. Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well grounded.
2. Check that the rack is sturdy and well grounded.