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User Manual
UUsseerr MMaannuuaal
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1. Cautions
Please read the following notices carefully before installing and using
OPCOM3100-155 multiplexer .
There must be grounding protection for the
sake of safety; the installing, maintaining and
plugging/pulling must be operated by technical
staff following in steps of anti static.
OPCOM3100 must be installed in the equipment
center where temperature and humidity are
proper, and please be attention to the electric
features of surrounding devices.
There are high sensitivity optical fittings inside
the device, so the power of network device’s
optical output interface must be checked before
connecting. To avoid damaging, it is not allowed
that the optical power of network device’s
output interface is higher than that of
OPCOM3100.
OPCOM3100 is integrated device that has
precise elements, please avoid violent shakes
and impacts, and do not disassemble or
maintain the device yourself, we regard it as
you waiver your rights of repair guarantee.
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Contents
1. Cautions.............................................................................................................. 1
2. Overview............................................................................................................. 4
2.1. Main feathers ........................................................................................... 4
2.2. Explanation of device number: ................................................................. 5
2.3. Part number explanation: ......................................................................... 5
2.4. Power number explanation: ..................................................................... 5
2.5. Dimension: ............................................................................................... 5
3. Parameters ......................................................................................................... 6
3.1. Basic configuration................................................................................... 6
3.2. Optical interface parameters: ................................................................... 6
3.3. E1 interface parameters: .......................................................................... 6
3.4. EOS sub card Ethernet interface parameters:.......................................... 6
3.5. CONSOLE interface parameters .............................................................. 7
3.6. SNMP network management interface parameters:................................. 7
3.7. Clock parameters: .................................................................................... 7
3.8. Power supply parameters: ....................................................................... 7
3.9. Work environment: ................................................................................... 7
4. Structure and indicator lights explanation ........................................................... 8
4.1. Front panel ............................................................................................... 8
4.2. Front panel indicator lights explanation: ................................................... 8
4.3. Rear panel view: .................................................................................... 10
5. Function and application ....................................................................................11
5.1. Network element type .............................................................................11
5.2. Network topology ................................................................................... 12
5.3. Clock ...................................................................................................... 13
5.4. Protection switch .................................................................................... 14
6. Installation & Preparation .................................................................................. 17
6.1. Cautions ................................................................................................. 17
6.2. Installation .............................................................................................. 17
6.2.1. Cable preparation.......................................................................... 17
6.2.2. Install the extension slot ................................................................ 17
6.2.3. Connect 155M SDH interfaces...................................................... 18
6.2.4. Connect E1 electrical port ............................................................. 18
6.2.5. Connect Ethernet port(If there is Ethernet service) ....................... 18
6.2.6. Connect SNMP network management port ................................... 18
6.2.7. Connect CONSOLE port ............................................................... 18
6.2.8. Power on ....................................................................................... 19
6.2.9. Service configuration..................................................................... 19
6.3. Connections ........................................................................................... 19
6.3.1. Point-to-point topology .................................................................. 20
6.3.2. Chain topology without protection ................................................. 20
6.3.3. Chain topology with protection ...................................................... 20
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6.3.4. 2-fiber ring topology ...................................................................... 21
7. Q & A ................................................................................................................ 22
8. Appendix A: How to make CONSOLE cable..................................................... 23
9. Appendix B: Terminologies and abbreviations .................................................. 24
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2. Overview
OPCOM3100-155 is compact SDH Multi-Service access equipment developed
by Dynamix , technical feature and indexes meet every norm of ITU-T and
national SDH. It deploys 1U structure, and it can provide STM-1, E1 and
Ethernet service. It is suitable for the access of end business of Telecom.
OPCOM3100-155 is mainly applied to service access and transmission of
access layer in communication networks; it also can make up communication
networks through E1 interface together with access devices, GSM mobile
cellular base station, ETS wireless access base station, switches and routers.
OPCOM3100-155 is available for flexible topology: point-to-point, chain and
ring and supports 1+1 low path protection to guarantee high reliable
transportation.
2.1. Main feathers
Provide two STM-1 interfaces, with options of either two individual STM-1
or 1+1 path protection;
The device consists of main card and sub card, and the main card
provides 16 E1 interfaces and sub card provides 4/8 Ethernet interfaces or
16 E1 interfaces.
Ethernet interface supports encapsulation of GFP and LAPS, the minimum
service bandwidth is 2M, it also supports VCG/LCAS and the bandwidth
can be adjusted without any damage for customer need.
Support 126*126 VC12 non-blocking cross capability.
Network Element type: TM, ADM or REG.
Network topology type: point-to-point, chain and ring; provide 1+1 low path
protection, and the switch time is less than 50ms.
Master/slave clock mode supports clock holding, locking, and free running
compliant with G.813 standard.
Provide SNMP and CONSOLE network management interfaces and ECC
embedded channel, available for both local and remote field upgrade and
is very convenient for maintenance.
Provide fault alarm and performance monitor, optical interface and E1
interface provide loop back function for convenient equipment
maintenance.
Support three types of power supply: 220V, -48V and +24V
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Power consumption: <15W.
Temperature: -5 ~50°C
2.2. Explanation of device number:
OPCOM3100-155 consists of main card, extension card and power card, and
the extension card includes E1 sub card and EOS sub card.
Whole device type number: OPCOM3100-155
Explanation: OPCOM3100 stands for RC 1U series SDH transmission platform
and 155 stands for the rate of STM-1.
2.3. Part number explanation:
Type Explanation
OPCOM3100-155-SC-E1
E1 sub card, provide 16 E1
interfaces
OPCOM3100-155-SC-FE-4TX
EOS sub card, provide 4
Ethernet electrical interfaces
OPCOM3100-155-SC-FE-8TX
EOS sub card, provide 8
Ethernet electrical interfaces
2.4. Power number explanation:
Type Explanation
OPCOM3100-155-PWR-AC 220V AC
OPCOM3100-155-PWR-DC48
-48V DC
OPCOM3100-155-PWR-DC24 +24V DC
2.5. Dimension:
OPCOM3100-155 adopts international 19-inch chassis and is convenient for
installation.
Dimension: 440(W)*43.6(H)*266(D)
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3. Parameters
3.1. Basic configuration
● Main circuit card: 16 E1 interfaces, two STM-1 interfaces;
● Extension card: E1 sub card or EOS sub card;
● E1 sub card provides 16 E1 interfaces and EOS sub card provides 4 or 8
Ethernet electrical interfaces;
● Power supply card: 220VAC, –48VDC or +24V;
● Network management interface: CONSOLE interface, SNMP network
interface;
3.2. Optical interface parameters:
● Rate: 155.52Mb/s
● Line coding: NRZ
● Optical interface type: SC interface
3.3. E1 interface parameters:
● Rate: 2048Kb/s±50ppm
● Interface coding: HDB3 code
● Impedance: 75
Ω
/unbalance
● Physical electric feathers compliant with ITU-TG.703 standards;
● Jitter performance compliant with ITU-TG.823 standards;
● Input jitter compliant with ITU-TG.823 standards;
● Output jitter compliant with ITU-TG.783 standards;
3.4. EOS sub card Ethernet interface parameters:
● Rate: 10/100 M auto-adapt
● Interface type: RJ-45
● Compliant with IEEE802.3 standard
● Line sequence is the same with that of switch
● Encapsulation supports LAPS, GFP
● Support LCAS
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3.5. CONSOLE interface parameters
● Interface type: RJ-45
● Compliant with RS232 standard
● Rate: 9600bps
3.6. SNMP network management interface parameters:
● Interface type: RJ-45
● Compliant with IEEE802.3 standard
● 10/100M auto-adapt
● Line sequence is the same with that of PC
3.7. Clock parameters:
● Clock mode: Locking, holding and free running
● Frequency precision: free running:
≤
±4.6×10-6(relative to traceable
G.811 standard clock)
Holding: ≤±0.37×10-6(24 hours)
● Trace range and loss of lock range:
≥
±4.6×10
-6
3.8. Power supply parameters:
● Voltage: -48V DC, tolerance range: -36V
~
-72V
+24V DC, tolerance range: +18V
~
+36V
220V AC, tolerance range: 180V
~
260V
● Power consumption: <15W
3.9. Work environment:
● Temperature:-5°C~50°C
● Humidity: ≤90 %( 35°C)
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4. Structure and indicator lights explanation
4.1. Front panel
Figure 4-1 front panel with DC power supply and 32 E1 interfaces
Figure 4-2 front panel with DC power supply, 16 E1 interfaces and 4 Ethernet
interfaces
Figure 4-3 front panels with DC power supply, 16 E1 interfaces and 8 Ethernet
interfaces
4.2. Front panel indicator lights explanation:
2
4
5
8
1
3
6
9
11
12
15
19
21
14
17
18
7
10
13
16
20
Figure 4-4 front panel explanations
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Table 4-1 OPCOM3100-155 front panel explanations
Number Explanation
Indicator
lights color
Description
1
Grounding
interface
2
LNK/ACT
indicator lights
Green Ethernet indicator light. ON:
Ethernet connection normal;
Flashing: data is being transmitted.
3
100M indicator
lights
Orange Ethernet indicator light. ON: rate of
Ethernet port is 100M, OFF: rate of
Ethernet port is 10M
4
Extension slot
For E1 sub card of 16 E1 port s or
EOS sub card of 4/8 Ethernet port
s
5,8
The first and
second optical
interfaces
STM-1 optical interface
6,9
LOS indicator
lights
Red ON: loss of optical signal; OFF:
normal
7,10
LOF indicator
lights
Red ON: loss of SDH frame; OFF:
normal
11
1-8,9-16 E1
For the Rx and Tx of 1-16 E1
channel 2mmHM connector. And
the sequence is: Rx of 18 E1
channels, Tx of 18 E1 channels,
Rx of 916 E1 channels, Tx of 9
16 E1 channels
12
LNK/ACT
indicator lights
Green SNMP interface indicator light. ON:
connection is normal; Flashing:
data is being transmitted
13
100M indicator
Green SNMP indicator light. ON: rate of
Ethernet port is 100M, OFF: rate of
Ethernet port is 10M
14
SNMP
Ethernet port which provides
network management
15
CONSOLE
Local control platform connected to
PC serial interface
16 RST
Reset
17
ALM
Red Whole alarm indicator, the light will
be ON if there is any kind of alarm
18
MASTER
Green ON: master station; OFF: slave
station
19 SYS Green System indicator, Flashing: CPU
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works normally
20 PWR Green Power supply indicator, ON:
power supply works normally
21
-48V power
supply inlet
Power supply type: 220V AC, -48V
DC, +24V DC
4.3. Rear panel view:
Figure 4-5 rear panel view
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5. Function and application
5.1. Network element type
OPCOM3100-155 is suitable for network end access. It can provide STM-1, E1
and Ethernet access and can be configured as TM, ADM and REG.
1
.
Terminal multiplexer (TM)
The main function of terminal multiplexer (TM) is multiplexing low speed E1
or Ethernet signal to high speed STM-1 SDH signal and demultiplexing
high speed STM-1 SDH signal to low speed E1 or Ethernet signal.
STM-1 optical
signal
E1 electrical signal/Ethernet
signal
Figure 5-1 TM network element type
2
.
Add/Drop multiplexer (ADM)
Add/Drop multiplexer (ADM) is the most common network element type in
SDH network, it has both synchronous multiplexing function and digital cross
connection function, and can add/drop the tributary signal flexibly. For example
the access E1 signal can be multiplexed to both east STM-1 signal and west
STM-1 signal.
STM-1 optical
signal
STM-1 optical
signal
E1 electrical signa l/ Ethernet signal
Figure 5-2 ADM network element type
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3
.
Regenerator REG
Regenerator REG can compensate the optical attenuation caused by
transmission fiber and regenerate new optical signal for transmission.
5.2. Network topology
OPCOM3100-155 has flexible networking capacity and high transmission
reliability, and it provides both 1+1 path protection and 2F SNC-P protection.
1
.
Point-to-point network consists of 2 TM devices and transmits STM-1, E1
and Ethernet services.
TM
S TM- 1
TM
opt ica l
si gn a l
E1
el
ect ric al
sig nal /
Et her ne t
s
ign al
E 1
e
lec tri ca l
s
ign al/
Eth ern et
sig nal
Figure 5-3 point-to-point topology
2.Chain topology
Chain topology is made up of two TM devices and several ADM devices.
Data is often transmitted in bi-direction and less optical fiber is needed.
TM
ADM
STM-1 optical
signal
STM-1 optical
TM
signal
E1 electrical signal/
Ethernet signal
E1 electrical
signal/
Ethernet signal
E1 elect
rical signal/
Ethernet signal
Figure 5-4 chain topology
3
.
Ring topology
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OPCOM3100-155 can organize ring topology network at STM-1speed with
flexible service configuration and high reliability, it also can realize 2F
SNC-P function.
E1 electrical signal/Ethernet signal
E1 electrical
signal/Ethernet
signal
ADM
ADM
STM-1 ring
ADM
E1 electrical
signal/Ethernet
signal
ADM
E1 electrical signal/Ethernet signal
Figure 5-5 ring topology
5.3. Clock
Clock of OPCOM3100-155 is compliant with G.813 standard.
1 Clock mode
●
Locking: clock is locked with outside input clock signal.
●
Holding: clock module will work at the last input signal frequency when
the input clock signal reference is lost.
●
Free running: clock module will work at the inside oscillator frequency.
2 Clock source select
The clock mode of OPCOM3100 is related to master/slave station. Master
station uses free running mode and slave station uses recovered clock. For
slave station, there are two recovered clock references: the first optical line
(primary reference clock) and the second optical line (standby reference
clock). OPCOM3100 will switch the reference clock from the first optical line to
the second if the primary reference clock is not available (including there is
LOS and the frequency offset is more than 4.6ppm), and if the primary
reference clock has recovered it will switch back.
3 Clock source switching
There won’t be error code and too much jitter if OPCOM3100 is forced to
switch from master station to slave station or from slave station to master
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station, and it is compliant with ITUT standard.
Every index is compliant with ITUT standard when OPCOM3100 change the
recovered clock reference (e.g. if there is LOS)
5.4. Protection switch
OPCOM3100 provides 1+1 low path protection in the case that the optical fiber
is broken off, PCB is damaged or middle notes are invalid, and the protection
switch time will be less than 50ms. There are two kinds of protection switch:
automatic protection switch and force protection switch, the force protection
switch can be configured through network management. The conditions of
automatic protection switch are as follows:
Switch type Switch conditions
Path protection
TU_AIS, TU_LOP
TU_AIS, TU-LOP are caused by:
Segment: SPI-LOS, RSLOF, MS-AIS,
MS-EXC, MS-SD (optional);
AU:AU-AIS,AU-LOP;
HP:HP-LOM, HP-EXC, HP-SD (optional);
1
.
Protection switch in chain topology:
Opt
ical
port 1
O
PCO
M3100
-155
wor
k
OP
COM
3100
-155
Opt
ica
l
port 1
Opt
ical
port 2
O
PCO
M3100
-155
pro
tect
OP
COM
3100
-155
Opt
ica
l
port 2
As the above figure, in chain 1+1 path protection between two ends, there
are two transmission lines transmitting the data, and every note receives
the data twice. One of the transmitting lines is working line and the other
one is protection line. Receiving end will select a better quality signal from
the two lines. Generally the Rx data is from working line and if there is
protection switch the Rx data is from protection line. When the working line
has recovered the Rx data is from working line again.
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2
.
2F SNC-P:
The principle of 2F SNC-P protection is that: “transmit data bi-directionally,
receive data bi-directionally, select one better quality signal and use the other
signal as standby”. 2F SNC-P uses one fiber to transmit service, called S fiber
(working fiber); uses another fiber for protection, called P fiber (protection fiber).
If every note of the ring works normally, the direction Tx signal and Rx signal is
the same (that is to say, if a note transmits data clockwise so does it receives
data), but the routing is not the same (e.g. if station A transmits data to station
C, the routing is A→B→C; and if station A receives data from C, the routing is
C→D→A, so the middle stations passed by are not same). See in the following
figure:
CA
AC
S
P
A
D
B
C
P
S
(a)
CA
AC
CA AC
S
P
A
D
B
C
P
S
(b)
CA
AC
switch
The Tx and Rx routing is in figure (a) when it works normally: data from A to C
is transmitted both in S fiber and P fiber, S fiber will transmit the data from A to
C clockwise though middle station B, and P fiber will transmit the data from A to
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C anticlockwise though middle station D. C receives two signals bi-directionally
and it will select a better quality signal (the signal in working line S fiber
generally). Data from C to A is the same process.
The Tx and Rx routing is in figure (b) when the fiber is cut off: for the signal in S
fiber is lost the switch will shift from S fiber to P fiber to receive the data
transmitted by P fiber, so the service between station A and C will go on. After
5~12 minutes the switch will recover if the fault is resolved and the service
from C to A will not be effected.
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6. Installation & Preparation
6.1. Cautions
Check whether the type of device, spare parts and number are same with that
of packing list. Make sure the device appearance is in excellent condition.
There must be drying process if the device has been damp.
To make sure normal working of the device, please follow the following steps:
● Read this manual carefully
● Fix and install the device
● Prepare the fiber and E1 cable
● Connect the fiber or other cables
●
If this is your first use of the device, please refer to configuration manual
and command manual.
●
Use the device properly
6.2. Installation
6.2.1. Cable preparation
The cables you need to prepare are:
Table 6-1 OPCOM3100-155 cable specifications
Interface
Specifications
10/100Mbps Ethernet
electrical
interface/SNMP
interface
100Base-T category-5 UTP, the maximum distance is
100m.(users provide)
CONSOLE cable Refer to appendix.
Optical fiber
Multi mode fiber or single mode fiber with SC/SC or
SC/FC connector (customized)
E1cable Special 2mmE1 cable.
Power supply
interface
AC, 220V/10A power supply cable.
-48V DC, -48V/10A power supply cable.
+24VDC, +24V/10Apowe
r
supply cable.
6.2.2. Install the extension slot
E1 and EOS sub card can insert into extension slot and cannot hot-swap.
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6.2.3. Connect 155M SDH interfaces
●
Connect the fiber to the SDH interfaces on front panel.
●
If proper connected the LOS indicator light will turn off.
Please refer to 6.3
6.2.4. Connect E1 electrical port
Connect E1 electrical port (2MM) through E1 cable with other device. Each E1
cable has 8 E1 IN or OUT pins in one end and the other end has 8 BNC
connectors, each connector has a number stands for the first channel to the
eighth channel.
6.2.5. Connect Ethernet port(If there is Ethernet service)
Connect the Ethernet port through Ethernet cable with router or Ethernet
switch and the LNK/ACT will ON if the connection is correct.
6.2.6. Connect SNMP network management port
Connect the SNMP network management port through Ethernet cable with
related device and the LNK/ACT will ON if the connection is correct.
6.2.7. Connect CONSOLE port
● Connect the RJ45 connector of CONSOLE cable with CONSOLE interface
on the front panel.
● Connect the DB9 connector PC serial interface.
● Start Hyper Terminal on PC:
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● Configure the network management of OPCOM3100-155; please refer to
command manual and configuration manual of OPCOM3100-155.
6.2.8. Power on
If you use -48V DC as power supply, connect the ground with protection
grounding first, “-48V” with low level voltage cable and “0V”with high level
voltage cable. Make sure of firm installation and no short-circuit, then power
on.
If you use 220V AC, use the affixing power supply cable.
After powered on, PWR indicator light will be normal, and the system has
finished initialized if SYS starts to flick
6.2.9. Service configuration
OPCOM3100 support time slot configuration of VC12 level, please refer to
command manual and configuration manual.
6.3. Connections
Different topology has different connection methods, and different protection
mode also has different connection methods.
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6.3.1. Point-to-point topology
Point-to-point topology is very simple and the connection method will not
change. See in the following figure:
Optical
port 1
O
pti
cal
port 1
OPCOM3
100
-155
OPCOM3
100
-
155
Optical
port 2
Optical
p
ort 2
Figure 6-1 Point-to-point topology
6.3.2. Chain topology without protection
See in figure 6-2.
O
pti
cal
port 1
Op
tic
al
p
ort 1
Opt
ical
port 1
O
pti
cal
port 1
OPCOM3
100
-155
O
PCO
M3100
-155
OPCOM3100
-155
OPCOM3
100
-155
Op
tic
al
port 2
O
pti
cal
port 2
Figure 6-2 Chain topology without protection
6.3.3. Chain topology with protection
See in figure 6-3.
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Opt
ical
port 1
OP
COM3100
-155
Optic
al
port 1
Optical
port 2
Optic
al
work
Optical
port
1
O
ptical
port 2
Optica
l
Opt
ical
port 1
OPC
OM3100
-155
Op
tical
port 1
pr
ote
ct
port
1
Opti
cal
port 2
Optical
port 2
Op
tical
port 2
port 2
Figure6-3 Chain topology with protection
6.3.4. 2-fiber ring topology
See in figure 6-4.
Op
tical Opti
cal
Optical Optical
port 1
port 2
port
1 port
2
Op
tical Opti
cal
Optical Optical
port 2 port 1
p
ort 2 port 1
Figure 6-4 2-fiber ring topology
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7. Q & A
If you have problems during the installation or application, please try to solve
them through the following suggestions. And if it does not work, please contact
the sellers to get technical supports.
● PWR light of power supply card turns OFF.
Check the power supply cable first, and then the power supply card.
● LOS alarms of SDH optical interface
That is to say, there is receiving signal loss. First, check whether the cable is
connected correctly; second, if there are still alarms when self-loop the cable
(perhaps optical attenuation is needed), change the cables; if there are still
alarms then there is something wrong with device.
● Indicator light of Ethernet interface or SNMP network management
interface is OFF.
First, check whether the cable works normally or not; then, check whether the
devices connect to Ethernet interface or SNMP network management interface
works normally or not. And make sure the cable is correct.
● E1 channel failed
Check the E1 cable, optical interface and time slot configuration, check the
alarms in the EMS and use loop back function to find where the problem is.
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8. Appendix A: How to make CONSOLE cable
● CONSOLE interface cable
CONSOLE interface uses RJ45 connector and the pin definition is as follows:
RJ-45 Pin
number
Signal Relative PC Pin
number
1 NC 2 DSR# 6
3 RxD 3
4 GND 5
5 GND 5
6 TxD 2
7 DTR# 4
8 NC -
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9. Appendix B: Terminologies and abbreviations
STM-1
Synchronous Transport Module (-N)
SDH
Synchronous Digital Hierarchy
TM
Terminal Multiplexer
ADM
Add/Drop Multiplexer
GFP
The Generic Frame Protocol
LAPS
Link Access Procedure SDH
LCAS
Link capacity adjustment scheme
EOS
Ethernet Over SDH
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