TFortis PSW-2G4F User manual

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Operation Manual
PSW-2G4F
PSW-2G4F-UPS
Multifunctional Gigabit Managed Switch for IP- video
surveillance systems
Version 7

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Components of power supply units are under high
voltage. Touching conducting components of
active power supply units is forbidden.
When connecting the computer to the switch,
remove PoE jumpers at this port.
Transportation of the switch with installed battery is
forbidden.
It is forbidden to connect over discharged batteries
(voltage at terminals is lower than 9.6V)
SFP module operates only at 1000 Mbit / s. Fast
Ethernet SFP modules will not operate.
For effective operation of lightning protection is
required:
•high quality grounding according to the ELC;
•use of shielded twisted pair with shielded
connectors RJ45;
•minimization of twisted pair and power cable
length;
Modifications
•PSW-2G4F
•PSW-2G4F-UPS (with built-in uninterruptible power supply)
Note.
The text describesthe PSW-2G4F, thedistinctive featuresof the PSW-2G4F-
UPS are specified separately.

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Table of Contents
Table of Contents.............................................................................................................3
1. Designation..................................................................................................................4
2. Description...................................................................................................................6
2.1. Appearance...............................................................................................................6
2.2. Element arrangement ...............................................................................................8
2.3. Power Supply over PoE...............................................................................100
2.4. 220V power supply backup…..……………….....………………………………..12
2.5. Tamper sensor .............................................................................................. 12
2.6. Lightning protection .......................................................................................12
2.7. Additional functions .....................................................................................134
2.7.1. Cold start.......................................................................................................14
2.7.2. Restart of video cameras at their hanging.....................................................14
2.8. Diagnostic functions ......................................................................................15
2.8.1. Cable tester................................................................................................... 15
2.8.2. Remote polling of video cameras ..................................................................15
2.9. Built in UPS (PSW-2G4F-UPS).....................................................................15
2.9.1. Input voltage monitoring ................................................................................15
2.9.2. Description of the UPS operation ..................................................................16
2.9.3. Estimating the time of uninterrupted operation..............................................18
2.9.4. Determination of battery performance ...........................................................18
2.9.5. Battery installation .........................................................................................19
2.9.6. Monitoring the fan operation..........................................................................21
3. Technical parameters....................................................................................22
4. Operation conditions...................................................................................... 23
5. Presetting ...................................................................................................... 23
5.1. Restore switch to Factory Settings ................................................................ 24
5.2. Setting the IP address ...................................................................................24
5.3. Setting Up a user name and password..........................................................24
5.4. Configuring PoE on ports…………………………………………………………..23
5.5. Enabling Preheating of camera housings....................................................254
5.6. Enabling backup protocols.............................................................................25
5.7. Backup power supply configuration……………………………………………….24
6. Device installation.......................................................................................... 26
6.1. Unit mounting ................................................................................................26
6.1.1. Installation of the unit on the wall................................................................... 26
6.1.2. Installation of the unit on the support.............................................................26
6.1.3. Installation of the unit into TFortis-CrossBox cabinet.....................................27
6.2. Optic connection............................................................................................27
6.3. Power connection..........................................................................................27
6.4. Connection of video cameras........................................................................31
7. Manufacturer’s warranty ................................................................................31
8. Appendix........................................................................................................32
8.1 Calculation of the power consumption .....................................................................32

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1. Designation
Device PSW-2G4F is an Outdoor Multifunction Gigabit Managed Switch
designed for networking of IP- video surveillance systems.
Figure 1. Connection scheme for the PSW-2G4F
Weatherproof version
The body of the device is made of a techno-polymer that is resistant to
Stringent Operating Conditions. There is a protection from moisture and dust
IP66.
Operation in extreme temperatures
The device has industrial hardware components that are characterized by an
extended temperature range. Using industrial SFP modules in industrial
version guarantees operation from -55°C to 65°C* (-67 to 149 F)*.
*The maximum temperature depends on the load (see diagram in section
4. Operation conditions)
High- performance Gigabit Switch
The basis of the switch is a high-performance chip from Marvell, which
provides processing of a large traffic coming from IР-video cameras.
PoE Support
The switch can power any PoE-camera that supports IEEE802.3af standard.
Power supply for camera housings over PoE
Switch operating with TFortis TH camera housings powers both video

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camera (IEEE802.3af) and Camera Housing (Passive PoE) via twisted pair.
Connection to 220V
Built-in PSU provides direct connection of the switch to the Power Supply
220V and excludes need in additional PSU.
Lightning protection
Built-in Lightning protection of Ethernet ports and 220V PSU reliably protects
both the switch and connected video cameras from pulse disturbances
induced by lightning discharges.
Cold start
Preheating of camera housing provides safe and guaranteed turn-on of video
cameras in cold conditions.
Automatic restart of video cameras at their hanging
The switch controls operation of video cameras. If video camera is hanging,
switch restart it automatically over PoE. This allows constructing unattended
IP- video surveillance systems.
Operation in a ring and in a chain
With two gigabit ports, you can connect the switches in chain. STP/RSTP
protocol support allows creating ring topologies, what significantly increases
the fault tolerance of the system.
Uninterruptable power supply for the whole system
Since the switch PSW-2G4F-UPS has an uninterruptible power supply unit
and cameras operate via PoE, the whole system is reserved for power.
Resistance to the voltage 380V
When 380V is applied, the switch PSW-2G4F-UPS will switch to the battery
and keep the entire system working from the backup power source.

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2. Description
2.1. Appearance
Figure 2.1-1. PSW-2G4F outside view
Figure 2.1-2. PSW-2G4F inside view

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Figure 2.1-3. PSW-2G4F-UPS outside view
Figure 2.1-5. PSW-2G4F-UPS inside view

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2.2. Element arrangement
Figure 2.2-1. Element arrangement of the PSW-2G4F
During normal operation of the processor, a CPU indicator must light
intermittently with a frequency of 2s. (1 sec. - on, 1 sec. - off.) DEFAULT
Indicator is on, when the device is in factory settings (IP 192.168.0.1).

Thermorelay
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Figure 2.2-2. Element arrangement of the PSW -2G4F-UPS

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2.3. Power Supply over PoE
The switch PSW-2G4F maintains power supply through IEEE802.3af and
Passive PoE technology. Power supply is selected according to jumper
configurations (Table 2-3). Power is supplied through pairs 1,2 and 3,6 over
data or through free pairs 4,5 and 7,8. In the PoE standard terminology, first
one is named as mode A and the second - mode B. Power is supplied to video
cameras installed into TFortis TH camera housing using mode A and mode B
simultaneously (I). When you connect other devices (not PoE), remove
jumpers for relevant port (IV).
Table 2-3. Configuration of PoE jumpers
Pairs 1,2 and 3,6
Pairs 4,5 and 7,8
Figure
IEEE802.3af
(video camera)
Passive PoE (TFortis TH
camera housings)
I
IEEE802.3af
(video camera)
-
II
-
IEEE802.3af
(video camera)
III
-
-
IV
IMPORTANT! There are two power units in the switch PSW-2G4F. Left one
supplies power to the video cameras and right one to camera housings. Make
sure that total consumption of video cameras does not exceed 50W. If TFortis
TH camera housings are not used, right PSU can be disconnected. Also, right
PSU can be used as left PSU backup (see 2.4 section)

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Figure 2.3 Power supply scheme over PoE in different cases

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2.4. 220V power supply backup
There are two power supply units in PSW-2G4F switch. Left PSU is designed
to power the switch and the camera housing over PoE. Right PSU has two
operation modes, which are selected by RES_PWR jumper according to 2.4
table.
Table 2.4.
Right PSU operation mode
RES_PWR
Note
1
TFortis TH camera housings
power supply
NO
Default
2
Left PSU backup
YES
2.5. Tamper sensor
On the switch board, there are contacts for connecting tamper sensor. When
the magnetically operated sealed contact is connected, the normal state of
the contact is normally closed, the alarm state is open. For end switches - all
the way around. The state of “normally closed” or “normally open” is set via
the WEB interface.
2.6. Lightning protection
The switch PSW-2G4F has in-built lightning protection modules that
provide protection of Ethernet ports and power supply circuits ~220V from
common-mode and differential electromagnetic disturbances.
Switches are resistant to high-energy microsecond pulse interference
according to GOST R 51317.4.5 standard with a degree of rigidity according
to Table 2.6-1 with performance criteria B.
Switches are resistant to dynamic changes in the voltage of the AC
electrical network in accordance with GOST R 51317.4.11 standard
according to Table 2.6-2 with the performance criteria B.
Table 2.6-1.

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Port
Degree of rigidity according to
the table 1 of standard GOST
R 51317.4.5
Voltage pulse value, kW
+ 10%
Power lines of the switch “wire-
wire”
3
2
Power lines of the switch “wire-
ground”
4
4
Symmetrical communication lines
of the switch “wire-ground”
2/3*
1/2*
* - with installed board ESP-1
Table 2.6-2.
Types of impacts
Degree of rigidity at testing
Test voltage, % in, + 5 %
Amplitude of dynamic voltage
changes,
%
Ur
Duration of dynamic voltage changes,
periods (ms)
Voltage dips
1
70
30
10 (200)
Voltage
interruptions
1
0 to 20
100
1 (20)
Voltage surge
2
120
20
25 (500)
Note - Ur - rated supply voltage.
(Performance criterion B - temporary deterioration in the performance quality
or termination of the established function with the subsequent restoration of
normal functioning, carried out without the operator’s intervention)
Maintainability is preserved during fluctuations in supply voltage from ~ 187
to ~ 246 V

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2.7. Additional functions
2.7.1. Cold start
The most critical moment in the operation of the video camera is the process
of its activation at low ambient temperature. Precisely a cold start can cause
the failure of an expensive video camera. To avoid such cases, unit PSW-
2G4F is implemented with preheating of camera housings TFortis TH. The
essence of it is that after power is applied to the unit, initially will be powered
heating elements of camera housings, and only then in 1 hour, the video
camera itself. This delay allows obtaining comfortable conditions for starting
video cameras and you will be able to save expensive equipment. Option
Comfort Start is available via WEB-interface in the section Special Function.
2.7.2. Restart of video cameras at their hanging
The PSW-2G4F constantly monitors the connection of the video camera to the
switch. There are three ways to determine the camera’s hanging:
1. No connection to the video camera (Link)
2. No response to service requests (Ping)
3. Reducing the flow from the camera (Speed)
Restart of the video camera over the Link signal.
The PSW-2G4F switch constantly (1 time per minute) monitors the Link signal
from the IP camera. If the switch does not detect the Link signal, then it starts
a one-minute timer, when it ends, the connection is reconnected. If the Link
signal does not appear, the PSW-2G4F removes power for 10 seconds and
resets it, rebooting the camera. This mechanism can be described in other
words. If the switch has not seen the Link signal from the video camera twice
in a row with a 1-minute interval, then it reboots it. Option Auto Restart is
available via WEB-interface in the section Special Function.
Restart the video camera when there is no response to Ping.
The PSW-2G4F switch constantly (1 time per minute) polls the IP camera. If
the switch does not receive a response, then starts a one-minute timer, during
which the poll is repeated every 10 seconds. If the video camera does not
response within a minute, the PSW-2G4F removes power for 10 seconds and
resets it, rebooting the camera. If the camera has responded at least once, the
switch decides that the camera is functioning properly and will start the poll
cycle once again, referring to the camera 1 time per minute. Option Auto
Restart is available via WEB-interface in the section Special Function. To use
this mechanism, you will need to enter the IP address of your video camera.
Make sure your video camera is responding to the PING (see diagnostic
functions section).

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The PSW-2G4F switch constantly controls traffic level (intensity) from the
camera. If the activity falls below the set level the switch restarts the camera
by removing power from the PoE. This function is enabled via WEB interface
for a specific port.
3.8 Diagnostic functions
3.8.1 Cable tester
The PSW-2G4F has functions of a virtual cable tester (VCT - Virtual
Cable Tester), which allows you to determine the break of the twisted pair,
short-circuited twisted pair wires, unconnected cable to the video camera,
distance between the defect and the switch. A cable tester diagnoses pairs
that transmit data (1, 2 и 3, 6). Please note that the accuracy of the cable
tester is ±2 meters.
By default, VCT operates on an average algorithm and does not take
into account the specific features of a particular cable, which can affect the
accuracy of the measurement. To improve the accuracy of the cable tester, it
is recommended to calibrate it. Note that calibration is not recommended for
cables with a length of less than 10 meters. See detailed information in 7.7.2.
3.8.2 Remote polling of video cameras
With the PSW-2G4F it is possible to ping any device in the network via
the WEB-interface, which is convenient when solving network problems.
3.9 Built in UPS (PSW-2G4F-UPS)
3.9.1 Input voltage monitoring
The PSW-2G4F-UPS switch monitors input voltage. If the input voltage is
above 260V or below 180V, the switch disconnects from the power supply and
switches to the battery power.
This node protects the device from such phenomena as:
1. electrical imbalance
2. zero loss (380V)
3. connection error (380V)
Video camera restart when reducing the flow from the camera

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ATTENTION! When the power isturned on, the ALARMindicator always lights
up. And only after 5-10 seconds the device goes into normal operation mode.
3.9.2 Description of the UPS operation
The PSW-2G-UPS switch has a built-in uninterruptible power supply,
implemented in the PSU, charge control unit and the battery (if included).
Three indicators VBAT, VOUT and VAC. describe the operation status.
If there is a mains voltage, the switch is powered and the battery is
charging. Every 10 seconds the battery charge circuit is disconnected for 1
second and the voltage level at the battery terminals is checked. If the battery
is not connected or not properly connected, or if the battery terminals are
closed, the VBAT LED is off.
When the mains voltage is disconnected, then power is supplied an
automatically from the backup battery. The indicator VAC goes out. In the
standby mode, the voltage level at the battery terminals is monitored. When
this voltage drops below 46V, the VBAT indicator starts to flash intermittently
at intervals of 2 seconds. (1 sec. on, 1 sec - off). With a further voltage drop
below 42V, the VBAT indicator starts to flash intermittently at intervals of 4
seconds. (1 sec. on, 3 sec - off), and the switch is turned off, preventing deep
battery discharge.
The switch has a deferred activation mechanism. Operating principle is
as follows. If you connect the battery terminals in the absence of an external
220V mains voltage, the switch will not work. It will go into sleep mode and
wait for the mains voltage to appear. In this state, the indicator VBAT flashes
once every 10 seconds. This mechanism allows you to save the battery
capacity before the start of the entire system. When 220V is supplied, the
Table 2.9 -Indicators of voltage control relay
Indicator
Description
NORM
Switch is powered by mains voltage
ALARM
Mains voltage is not supplied to the switch due to high or low
voltage.
Table 2.9-1 - uninterruptible power supply unit indicators
Indicator
Description
VOUT
Presence of the output voltage
VBAT
Presence of the connected battery
VAC
Presence of the AC network

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batteries will go into the standby mode.
In practice, at first, the whole system is assembled and only then, when
everything is checked, the 220V power is supplied. Sometimes this process is
stretched. If there is no delayed start mechanism, then after connecting the
battery, the switch and video cameras will start working immediately.
Consumers gradually discharge the battery to a safe voltage. Deep discharge
is excluded. However, a prolonged stay in a semi-discharged state results in a
drop in the battery capacity. To prevent this phenomenon, the deferred
activation mechanism was implemented.

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IMPORTANT! It is forbidden to connect over discharged batteries (voltage at
terminals is lower than 9.6V)
Table 2.9-2 - state indication of the uninterruptible power supply unit
VBAT
VOUT
VAC
Description
The switch is powered by the network, battery is
present, voltage at the battery is normal.
The switch is powered by the network, battery
failure (battery is not connected, polarity is not
correct or terminals are closed)
The switch is powered by the battery (voltage at
the battery is higher than 46V), mains voltage is
absent.
The switch is powered by the battery (voltage at
the battery is lower than 46V but higher than
42V), mains voltage is absent. VBAT LED
flashing indicates that battery will soon be
discharged.
The switch is completely de-powered or is in a
sleep mode with discharged batteries.
The switch is in the waiting mode and waits
supply of 220V mains voltage.
where
indicator is not lightning
indicator is lightning >V
indicator 1 s - on, 1 s - not lightning
indicator flashes 1 time in 10 s

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3.9.3 Estimating the time of uninterrupted operation
Time of uninterrupted operation depends on manyfactors. The most significant
is the power consumption of the video camera and camera housing. As a rule,
cameras without heating consume from 3W to 5W. The main power is
consumed by the camera housing. Please note that the TFortis PSW-2G4F-
UPS switch turns off the power of the camera housing when switching to the
battery. This will allow the system to run longer from the battery, and the heat
that the camera dissipates is enough for not freezing during this time.
* Load - is the total power of cameras + power loss on the UTP/FTP cable
Note that the Table 2.9.3 shows the approximate battery life. These values are
recommended for use in system design.
The switch constantlyrecalculates the time that it can operate using the battery
at the current consumption. This information is available via the WEB interface.
3.9.4 Determination of battery performance
Battery capacity - the amount of electricity released by a fully charged
battery when it is discharging before reaching the final voltage. The capacity
of batteries does not remain constant throughout their life. During operation,
the container remains stable for some time, and then starts to gradually
decrease (residual capacity).
The residual capacity can be estimated by special devices (battery
Table 2.9.3. Estimation of uninterrupted operation time
uninterrupted operation
Load*, W
Time
0
7:10
5
5:40
10
4:10
15
3:10
20
2:30
25
2:10
30
1:50
35
1:40
40
1:30
45
1:10

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capacity testers). It is recommended to evaluate the battery condition once a
year. Using a battery with a small residual capacity reduces the time of
uninterrupted operation of the switch.
The switch battery operates in a buffer mode. The service life of the
batteries supplied in this kit (if included) is 5 years under normal conditions.
When the switch is operating in conditions of frequent power outages or when
operating in hot climates, the deterioration of the battery will occur sooner. If it
is not possible to test the battery as described above, we recommend to
replace the battery every 2 years.
3.9.5 Battery installation
Recommended battery models
1. DTM12022 Delta
2. DJW12-2.3 Leoch
3. BP2.3-12 BB
4. GP1222 CSB
Place the battery into the battery compartment observing the polarity. Fix the
batteries with metal holders, having previously placed a board with a thermal
cell between them. The thermal cell must fit snugly against the battery
housings. Connect wires (Figure 2.9.5).
IMPORTANT! When installing, do not short-circuit the battery holder.
IMPORTANT! The thermal cell is supplied with a voltage of 220V.
Figure 2.9.5. Connecting the battery