Digisol DG-GS4900 SERIES User manual

DG-GS4900 SERIES
Installation Guide
V1.0
2015-05-12
As our products undergo continuous development the specifications are subject to change without prior notice

DG-GS4900 Series Installation Guide
2
Index
1.1 OVERVIEW.............................................................................................3
1.2 INTRODUCTION TO PRODUCT...................................................................4
1.2.1 Product Overview.......................................................................................4
1.2.2 Features and Benefits................................................................................4
1.3 PHYSICAL SPECIFICATIONS .....................................................................5
1.4 DESCRIPTION OF HARDWARE ..................................................................6
1.4.1 Front Panel..................................................................................................6
1.4.2 Back Panel ..................................................................................................7
1.4.3 DC Power/PoE Power(specific models only) Input................................8
1.4.4 Status LEDs ................................................................................................8
1.4.5 Interface Description of Front Panel......................................................11
1.4.6 Extended Module Description ................................................................11
2.1 INSTALLATION NOTICE ..........................................................................14
2.1.1 Environmental Requirements.................................................................14
2.1.2 Installation Notice ....................................................................................17
2.1.3 Security Warnings....................................................................................17
2.2 INSTALLATION PREPARATION.................................................................18
2.2.1 Verify the Package Contents...................................................................18
2.2.2 Required Tools and Utilities....................................................................18
2.3 INSTALLATION GUIDE............................................................................19
2.3.1 Installing Switch.......................................................................................19
2.3.2 Connecting Console................................................................................19
2.3.3 SFP Transceiver Installation ...................................................................20
2.3.4 DG-SA-GS4900-2XFP Extended Module Installation............................21
2.3.5 DG-SA-GS4900-2SFP+ extended module Installation..........................21
2.3.6 Copper Cable/Fiber Cable Connection..................................................22
2.3.7 AC Power Supply Connection................................................................23
2.3.8 DC Power Supply Connection................................................................24

DG-GS4900 Series Installation Guide
3
Chapter 1 Introduction
1.1 Overview
DG-GS4900 series switches are ethernet switches. DG-GS4900 series switches are
intelligent network management switches used by the network environment which need
high performance, bigger port density and convenient installation.
DG-GS4900 series switches include the following:
Name Type Description
DG-GS4900 Series DG-GS4928F 12 FIBER PORTS ＋12 COMBO
PORTS ＋2
EXTENDED CARDS
SLOTS
DG-GS4952F 44 GigabitSFP and 4 Gigabit combo
ports and 2 extended cards slot
DG-GS4928S
24 PORTS GIGA L3 SWITCH INCL
4XGBE COMBO, 2X10G UPLINK
SLOTS
DG-GS4952S
48 PORTS GIGA L3 SWITCH INCL
4XGBE COMBO, 2X10G UPLINK
SLOTS

DG-GS4900 Series Installation Guide
4
1.2 Introduction to Product
1.2.1 Product Overview
Front panel of DG-GS4928F supplies 12 1000M-fiber-ports and 12 Combo ports.
Front panel of DG-GS4952F supplies 44 1000M-fiber-ports and 4 Combo ports.
DG-GS4928F and DG-GS4952F , can input 48V DC power. The front panel of
DG-GS4928S is also shown below.
1.2.2 Features and Benefits
Various Interfaces
DG-GS4928F provides 12 1000Mb fiber ports, 12 1000Mb Combo ports (1000Mb
fiber SFP ports/1000Mb copper ports) and 2 slots with the extended cards.
Secure Power Supply
DG-GS4900 series switches provide DC/AC power backup, support 220V AC input,
48V DC input, 12V DC input, 220V AC, 48V DC input simultaneously or 220V AC, 12V DC
input simultaneously.
Support 10Gb Ethernet
10Gb Ethernet which adopts full-duplex technology instead of low-speed, half-duplex
CSMA/CD protocol, is a big leap in the evolution of Ethernet. 10Gb Ethernet can be
deployed in star or ring topologies. DG-GS4900 series switches provide broad bandwidth
and powerful processing capacity. It is suitable for metropolitan networks and wide area
networks. Using DG-GS4900 series switches, users can simplify network structures and
reduce cost of network construction.
Networking Protocols
DG-GS4900 series switches support 802.1d/w/s, 802.1Q, 802.1p, 802.3ad, 802.3x,
GVRP, DHCP and SNTP etc. The switches also support the multicast protocols such as
IGMP, DVMRP and PIM. Moreover, DG-GS4900 series switches support RIPv1/2, OSPF,
BGP and IPv6 protocols. All these protocols supported enable DG-GS4900 series
switches to meet the requirements of complex network constructions.
ACL
DG-GS4900 series switches support comprehensively ACL policies. The traffic can
be classified by source/destination IP addresses, source/destination MAC addresses, IP
protocols, TCP/UDP, IP precedence, time ranges and ToS. And various policies can be
conducted to forward the traffic. By implementing ACL policies, users can filter the virus

DG-GS4900 Series Installation Guide
5
packets such as “Worm.Blaster”, “Worm.Sasser” and “Red Code” etc. DG-GS4900 series
switch also support IEEE802.1x port based access authentication, which can be deployed
with RADIUS, to ensure the port level security and block illegal users.
QoS
DG-GS4900 series switches fully support DiffServ Module. Users can specify a
queue bandwidth on each port. WRR/SP/SWRR scheduling is also supported.
DG-GS4900 series support the port trust. Users can configure trusted CoS, DSCP, IP
precedence and port priority. User can also modify packet’s DSCP and COS values. The
traffic can be classified by port, VLAN, DSCP, IP precedence and ACL table. User can
also modify packet’s DSCP and IP precedence values. Users can specify different
bandwidths for voice/data/video to customize different qualities of service.
3D-SMP Ready
DG-GS4900 series are upto the mustard of Self-defending security region
management strategy. It is supported interaction with some security system such as
firewall, IDS, etc. It can defense the virus and aggress effectively from the extranet and
internet. Thus enhance the security and stability of the network-wide.
Perfect Web Management.
DG-GS4900 series support SNMP, In-band and Out-of band Management, CLI and
WEB interface and RMON. It can mail the correlative sensitive information to the
administrator abide by SMTP protocol. DG-GS4900 series support SSH protocol, ensure
the configuration management security of the switch.
1.3 Physical Specifications
Item DG-GS4928F
Dimension (W * H * D)（mm）440×324×44
Weight
<6kg
Fixed ports 12 SFP fiber ports
12 1000Mb Combo ports
2 interfaces with extended card
Management Ports
1 console port

DG-GS4900 Series Installation Guide
6
Power •AC input:
The rating voltage range: 100V~240V AC;
50/60HZ.
•DC input:
48V DC input, -48V～-60V/DC; 2.5A
Output power supply of PoE Do not support
The max Power Consumption 35W
Fan Support automatic timing
Operating Temperature 0º~50ºC
Relative Humidity 10%~90%
Table 1-1 Physical Specifications
1.4 Description of Hardware
1.4.1 Front Panel
DG-GS4928F Ethernet switch provides 12 1000Mb fiber ports, 12 1000Mb Combo ports,
8 function LEDs and 1 Console port.
Fig 1-1 Front Panel of DG-GS4928F
Fig 1-2 Front Panel of DG-GS4928S

DG-GS4900 Series Installation Guide
7
1.4.2 Back Panel
DG-GS4928F / DG-GS4928F / DG-GS4928F -R / supplies 2 plug-in interfaces, 1
-48V DC input power interface, 1 input power interface of PoE and 1 220V input power
interface.
DG-GS4928F supplies 2 interfaces with the extended card, 1 interface with -48V DC
power input and 1 interface with 220V AC power input. Back Panel of DG-GS4928F is
same with DG-GS4952F , it supplies 2 interfaces for the extended card, 1 interface with
-48V DC power input and 1 interface with 220V AC power input.
Fig 1-3 Back Panel of DG-GS4952F
Fig 1-4 Back Panel of DG-GS4952S
Fig 1-5 Back Panel of DG-GS4928S

DG-GS4900 Series Installation Guide
8
1.4.3 DC Power/PoE Power (specific models only) Input
DG-GS4900 series support AC/DC input power backup and PoE power output.
pin-outs signal of DC power and PoE power are distributed as below:
Fig 1-6 Pin-outs Distribution of DC Input for DG-GS4928F
There are 3 pin-outs for DC socket:
PIN1: GND Ground connection
PIN2: -48V DC power cathode input
PIN3: 0V DC power positive electrode input
1.4.4 Status LEDs
LEDs of DG-GS4928F show the corresponding state. Mainboard LEDs include two
parts, one is 24/48 1000M interface LEDs, they show each port state at RJ45 plug-in,
each port corresponds a LED with double colors.
LED Status Description
Green
On On means ports are in the link state
of 1000M、100M、10M
Off Off means ports are not in the link
state of 1000M、100M、10M
Blink Send or receive the data
Table 1-2 Port LEDs

DG-GS4900 Series Installation Guide
9
The other is system LEDs, they are used to show the work status of the system at the
right of front panel.
Panel
Symbol Status Description
PWR On (Green) Power is operating normally
Off
Power is abnormally
DIAG On (Green, blink) System is loading
On (Green)
System is operating normally
ALM On (Green) System is malfunctioning
Off
System is operating normally
RPS On (Green)
System is using DC power
Off
System does not use DC power
M1 On (Green)
M1 is in place
Off
M1 is not in place
M2 On (Green)
M2 is in place
Off
M2 is not in place
Table 1-3 DG-GS4928F System LEDs
LEDs of DG-GS4928F show the corresponding state. There are two kinds of LEDs on
front panel, one of its kinds is fiber/copper LEDs of port transceiver, they are at RJ45 linker
or SFP linker. Each port of RJ45 linker corresponds a LED with double colors, each port of
SFP linker corresponds two LEDs, detailed descriptions are shown in the following tables.
LED Status Description
Green
On It means port is at link state
Off It means port is not at link state
Blink Send or receive the data
Table 1-4 RJ45 Port LEDs
LED Status Description
Left LED On SFP port is at link state
Off SFP port is not at link state
Blink There is no this state

DG-GS4900 Series Installation Guide
10
Right LED On There is no this state Off No data is received or sent
Blink Send or receive the data
Table 1-5 SFP Port LEDs
Panel
Symbol Status Description
PWR On (Green) Power is operating normally
Off Power is abnormally
DIAG On (Green, blink) System is loading
On (Green) System is operating normally
ALM On (Green) System is malfunctioning
Off
System is operating normally
DC On (Green)
System is using DC power
Off
System does not use DC power
M1-1
On (Green)
Port1 of M1 is at link state
On (Green,
Blink) Port1 of M1 is receiving or sending
the data
Off
Port1 of M1 is not at link state
M1-2
On (Green)
Port2 of M1 is at link state
On (Green,
Blink) Port2 of M1 is receiving or sending
the data
Off
Port2 of M1 is not at link state
On (Orange) Port2 of M1 is not at link state, but
M1 is in place
M2-1
On (Green)
Port1 of M2 is at link state
On (Green,
Blink) Port1 of M2 is receiving or sending
the data
Off
Port1 of M2 is not at link state
M2-2
On (Green)
Port2 of M2 is at link state
On (Green,
Blink) Port2 of M2 is receiving or sending
the data
Off
Port2 of M2 is not at link state
On (Orange) Port2 of M2 is not at link state, but
M2 is in place
Table 1-6 DG-GS4928F System LEDs

DG-GS4900 Series Installation Guide
11
1.4.5 Interface Description of Front Panel
DG-GS4900 series switches provide RJ-45 1000Mb copper port and the interface of
SFP 1000Mb fiber transceivers.
Interface mode Spec
RJ-45 port •10/100/1000Mbps auto negotiation
•MDI/MDI-X cable mode auto negotiation
•5 kinds of UTP: 100 m
SFP •SFP-SX-L transceiver
1000Base-SX SFP(850nm,MMF,550m)
•SFP-LX-L transceiver
1000Base-LX SFP
Table 1-7 interface descriptions
1.4.6 Extended Module Description
DG-GS4900 series provides 2 slots to install 2
DG-SA-GS4900-2XFP ,DG-SA-GS4900-2SFP+ extended modules.
Extended module
model
DG-GS4900 series switch Extended module
description
DG-SA-GS4900-2XFP Support 10Gb 10Gb XFP extended module
with double ports
DG-SA-GS4900-2SFP+ Support 10Gb 10Gb compatible module with
double ports
DG-SA-GS4900-2SFP Support 1Gb 1Gb compatible module with
double ports
Table 1-8 interface descriptions
Take DG-SA-GS4900-2XFP as an example, extended module diagram is shown as
follows:

DG-GS4900 Series Installation Guide
12
Figure 1-5 DG-SA-GS4900-2XFP structure diagram
Each extended module’s panel diagram is shown as follows:
Figure 1-6 panel diagram of DG-SA-GS4900-2XFP
Figure 1-7 panel diagram of DG-SA-GS4900-2SFP+
Back panel diagrams of switch with extended modules are shown as follows:
Figure 1-8 The back panel with extended modules for DG-GS4928F
Figure 1-9 The back panel with extended modules for DG-GS4952F

DG-GS4900 Series Installation Guide
13
Extended module‘s LED descriptions are in the following:
Table 1-9 LED descriptions of 10Gb extended module
Spec
XFP
•XFP-SR transceiver
10GBase-SR XFP multi-
mode fiber
transceiver (850nm，62.5μm MMF 32m，50
μm 500MHz/km MMF 85m ，50 μm
2000MHz/km MMF 300m)
•XFP-LR transceiver
10GBase-LR XFP single-
mode fiber
transceiver (1310nm,SMF)
SFP+
SFP+-LR transceiver
10GBase-LR SFP+(1310nm, SMF)
SFP+-SR transceiver
10GBase-SR SFP+(850nm, 62.5μm MMF
32m, 50μm 500MHz/km MMF 85m, 50μm
2000MHz/km MMF 300m)
Table 1-10 XFP, SFP+ transceivers descriptions of DG-GS4928F series
LED Status Description
Link/Activity
Green Ports are at link state with 10G
Blink(Green) Ports are at active state with 10G
Off No link or the link is failure

DG-GS4900 Series Installation Guide
14
Chapter 2 Hardware Installation
2.1 Installation Notice
To ensure the proper operation for DG-GS4900 series and your physical security,
please read carefully the following installation guide.
2.1.1 Environmental Requirements
•The switch must be installed in a clean area. Otherwise, the switch may be damaged
by electrostatic adherence.
•Maintain the temperature within 0 to 50 °C and the humidity within 10% to 95%,
non-condensing.
•The switch must be put in a dry and cool place. Leave sufficient spacing around the
switch for good air circulation.
•The switch must work in the right range of power input (AC power: 90 ~ 264V (50Hz),
DC power: -40 ~ -60V)
•The RPS input of the switch must be in the range of +11.5 ~ +13VDC.
•The switch must be well grounded in order to avoid ESD damage and physical injury
of people.
•The switch should avoid the sunlight perpendicular incidence. Keep the switch away
from heat sources and strong electromagnetic interference sources.
•The switch must be mounted to a standard 19’’ rack or placed on a clean level
desktop.
2.1.1.1 Dust and Particles
Dust is harmful to the safe operation of DG-GS4928F series. Dust can lead to
electrostatic adherence, especially likely under low relative humidity, causing poor contact
of metal connectors or contacts. Electrostatic adherence will result in not only reduced
product lifespan, but also increased chance of communication failures. The recommended
value for dust content and particle diameter in the site is shown below:
Max Diameter (µm) 0.5 1 3 5
Max Density
(particles/m³) 1.4×1057×1052.4×1051.3×105
Table 2-1 Environmental Requirements: Dust

DG-GS4900 Series Installation Guide
15
In addition, salt, acid and sulfide in the air are also harmful to the switch. Such
harmful gases will aggravate metal corrosion and the aging of some parts. The site should
avoid harmful gases, such as SO2, H2S, NO2, NH3and Cl2, etc. The table below details the
threshold value.
Gas Average (mg/m³) Max (mg/m³)
SO20.2 1.5
H
2
S 0.006 0.03
NO20.04 0.15
NH3
0.05
0.15
Cl20.01 0.3
Table 2-2 Environmental Requirements: Particles
2.1.1.2 Temperature and Humidity
Although the switch is designed to use 4 fans, the site should still maintain a desirable
temperature and humidity. High-humidity conditions can cause electrical resistance
degradation or even electric leakage, degradation of mechanical properties and corrosion
of internal components. Extreme low relative humidity may cause the insulation spacer to
contract, making the fastening screw insecure. Furthermore, in dry environments, static
electricity is liable to be produced and cause harm to internal circuits. Temperature
extremes can cause reduced reliability and premature aging of insulation materials, thus
reducing the switch’s working lifespan. In the hot summer, it is recommended to use
air-conditioners to cool down the site. And the cold winter, it is recommenced to use
heaters.
The recommended temperature and humidity are shown below:
Temperature: Relative humidity
Long term condition Short term condition Long term condition
Short term
condition
15 ~ 30°C 0 ~ 50°C 40 ~ 65% 10 ~ 95%
Table 2-3 Environmental Requirements: Temperature and Humidity
Caution!
A sample of ambient temperature and humidity should be taken at 1.5m above the
floor and 0.4m in front of the switch rack, with no protective panel covering the front and
rear of the rack. Short term working conditions refer to a maximum of 48 hours of

DG-GS4900 Series Installation Guide
16
continued operation and an annual cumulative total of less than 15 days. Formidable
operation conditions refers to the ambient temperature and relative humidity value that
may occur during an air-conditioning system failure, and normal operation conditions
should be recovered within 5 hours.
2.1.1.3 Power Supply
Before powering on the power supply, please check the power input to ensure proper
grounding of the power supply system. The input source for the switch should be reliable
and secure; a voltage adaptor can be used if necessary. The building’s circuit protection
system should include in the circuit a fuse or circuit-breaker of no greater than 240 V, 10 A.
It is recommended to use a UPS for more reliable power supplying. .
Caution!
Improper power supply system grounding, extreme fluctuation of the input power, and
transients (or spikes) can result in larger error rate, or even hardware damage!
2.1.1.4 Preventing Electrostatic Discharge Damage
Static electric discharges can cause damage to internal circuits, even the entire
switch. Follow these guidelines for avoiding ESD damage:
•Ensure proper earth grounding of the device;
•Perform regular cleaning to reduce dust;
•Maintain proper temperature and humidity;
•Always wear an ESD wrist strap and antistatic uniform when in contact with circuit
boards.
2.1.1.5 Anti-interference
All sources of interference, whether from the device/system itself or the outside
environment, will affect operations in various ways, such as capacitive coupling, inductive
coupling, electromagnetic radiation, common impedance (including the grounding system)
and cables/lines (power cables, signal lines, and output lines). The following should be
noted:
•Precautions should be taken to prevent power source interruptions;
•Provide the system with a dedicated grounding, rather than sharing the grounding with
the electronic equipment or lightning protection devices;
•Keep away from high power radio transmitters, radar transmitters, and high frequency
strong circuit devices;

DG-GS4900 Series Installation Guide
17
•Provide electromagnetic shielding if necessary.
2.1.1.6 Rack Configuration
The dimensions of the DG-GS4900 series is designed to be mounted on a standard
19’’ rack, please ensure good ventilation for the rack.
•Every device in the rack will generate heat during operation, therefore vent and fans
must be provided for an enclosed rack, and devices should not be stacked closely.
•When mounting devices in an open rack, care should be taken to prevent the rack
frame from obstructing the switch ventilation openings. Be sure to check the
positioning of the switch after installation to avoid the aforementioned.
Caution！
If a standard 19’’ rack is not available, the DG-GS4900 series can be placed on a
clean level desktop, leave a clearance of 100mm around the switch for ventilation, and do
not place anything on top of the switch.
2.1.2 Installation Notice
•Read through the installation instruction carefully before operating on the system.
Make sure the installation materials and tools are prepared. And make sure the
installation site is well prepared.
•During the installation, users must use the brackets and screws provided in the
accessory kit. Users should use the proper tools to perform the installation. Users
should always wear antistatic uniform and ESD wrist straps. Users should use
standard cables and connecters.
•After the installation, users should clean the site. Before powering on the switch, users
should ensure the switch is well grounded. Users should maintain the switch regularly
to extend the lifespan of the switch.
2.1.3 Security Warnings
•When using SFP transceiver, do not stare directly at the fiber bore when the switch is
in operation. Otherwise the laser may hurt your eyes.
•Do not attempt to conduct the operations which can damage the switch or which can
cause physical injury.
•Do not install, move or disclose the switch and its modules when the switch is in
operation.
•Do not open the switch shell.

DG-GS4900 Series Installation Guide
18
•Do not drop metals into the switch. It can cause short-circuit.
•Do not touch the power plug and power socket.
•Do not place the tinder near the switch.
•Do not configure the switch alone in a dangerous situation,
•Use standard power sockets which have overload and leakage protection.
•Inspect and maintain the site and the switch regularly.
•Have the emergence power switch on the site. In case of emergence, switch off the
power immediately.
Caution!
Potential risk include: Electric leakage, Power supply arcing, Power line breakage,
Imperfect earth, Overload circuit and Electrical short circuit. If electric shock, fire, electrical
short circuit occurs, please cut off the electricity supply and alarm rapidly. Rescue the
injured person in the contingency under inherently safe, give the injured person proper
first aid treatment according to the injury state, and seek help from the Medical
Emergency using various ways.
2.2 Installation Preparation
2.2.1 Verify the Package Contents
Please unpack the shipping package and verify carefully the contents inside.
2.2.2 Required Tools and Utilities
The required tools and utilities are shown below:
•Cross screwdrivers
•Flat-blade screwdriver
•ESD wrist strap
•Antistatic uniform
Caution!
Users should prepare the required tools by themselves.

DG-GS4900 Series Installation Guide
19
2.3 Installation Guide
2.3.1 Installing Switch
Fig 2-1 Install sketch map on the rack
Please mount DG-GS4900 series on the 19’’ rack as below:
1. Attach the 2 brackets on the DG-GS4900 series with screws provided in the
accessory kit.
2. Put the bracket-mounted switch smoothly into a standard 19’’ rack. Fasten the
DG-GS4928F series to the rack with the screws provided. Leave enough space around
the switch for good air circulation.
Caution!
The brackets are used to fix the switch on the rack. They can’t serve as a bearing.
Please place a rack shelf under the switch. Do not place anything on top of the switch. Do
not block the blowholes on the switch to ensure the proper operation of the switch.
2.3.2 Connecting Console
DG-GS4900 series provides a Mini-USB serial console port.

DG-GS4900 Series Installation Guide
20
Fig 2-2 Connecting Console to switch
The connection procedure is shown below:
1. Find the console cable provided in the accessory kit. Attach the Mini-USB end to
console port of the switch.
2. Connect the other side of the console cable to a character terminal (PC).
3. Power on the switch and the character terminal. Configure the switch through the
character terminal.
2.3.3 SFP Transceiver Installation
DG-GS4900 series provides multiple 1000Mb SFP transceiver slots.
The procedure for installing SFP transceiver is shown below:
Step 1: Put on a ESD wrist strap (or antistatic gloves).
Step 2: Insert SFP transceiver to the guide rail inside the fiber interface line card. Do not
put the SFP transceiver up-side-down.
Step 3: Push SFP transceiver along the guide rail gently until you feel the transceiver snap
into place at the bottom of the line card.
Note: SFP transceiver supports the hot swap.
Caution!
Do not stare directly at the 2 fiber bores in the SFP transceiver when the switch is in
operation, otherwise the laser may hurt your eyes.