7090-2 CEM
4.0
Coriant 7090-2 CEM
Hardware Description (HD)
Issue: 04 Issue date: June 2018
A42022-L5991-A051-04-7618
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Disclaimer Hardware Description (HD)
The information in this document is subject to change without notice and describes only the product
defined in the introduction of this documentation. This documentation is intended for the use of
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welcomes customer comments as part of the process of continuous development and improvement of
the documentation.
The information or statements given in this documentation concerning the suitability, capacity, or
performance of the mentioned hardware or software products are given "as is" and all liability arising
in connection with such hardware or software products shall be defined conclusively and finally in a
separate agreement between Coriant and the customer. However, Coriant has made all reasonable
efforts to ensure that the instructions contained in the document are adequate and free of material
errors and omissions. Coriant will, if deemed necessary by Coriant, explain issues which may not be
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Copyright © Coriant 2018. All rights reserved.
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Table of Contents Hardware Description (HD)
Table of Contents
This document has 16 pages.
1 Cabinet ........................................................................................................... 5
1.1 Cabinet Specification ...................................................................................... 5
1.2 Cabinet Appearance ....................................................................................... 5
1.3 PDP ................................................................................................................ 6
2 Subrack........................................................................................................... 8
2.1 Subrack Structure ........................................................................................... 8
2.2 Subrack Functions .......................................................................................... 8
2.3 System Hardware ........................................................................................... 9
2.4 Board Structure ............................................................................................. 10
2.5 Interface Specifications ................................................................................. 12
2.6 Indicators ...................................................................................................... 14
Abbreviations 16
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Hardware Description (HD) Cabinet Table of Contents
Summary of Changes
Issue Issue Date Remarks
1 July 2016 Released the initial version.
2 November 2017 Updated for 4.0.
3 February 2018 Added minor changes.
4 June 2018 Added minor changes.
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Cabinet Hardware Description (HD)
1 Cabinet
7090-2 CEM uses unified cabinet of Coriant devices with large capacity. There
are two types of cabinet.
1.1 Cabinet Specification
Table 1 shows specifications of the 7090-2 CEM cabinet.
Dimension (mm) Weight (kg)
2260 (H) x 600 (W) x 300 (D) 50
2260 (H) x 600 (W) x 600 (D) 110
Table 1 7090-2 CEM cabinet specifications
The weight is measured based on an empty cabinet.
1.2 Cabinet Appearance
Figure 1 shows the appearance overview of 7090-2 CEM cabinet. (The one
with 600 mm depth is used as an example.)
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Hardware Description (HD) Cabinet
1 Side door lock 8 Alarm indicator
2 Back door 9 Right door
3 Left door 10 Mounting bracket
4 Rear pillar 11 Lock
5 Grounding rod 12 Front pillar
6 Bottom air vents 13 Front door
7 Top air vents 14 Grounding rod for the door
Figure 1 Appearance overview of 7090-2 CEM cabinet
1.3 PDP
The PDP (Power Distribution Panel) is installed inside the cabinet and under
the alarm indicators. It provides –48 V DC power supply for the device by
accessing an external power source, and the magnetic circuit breaker is used.
The PDP has eight (four primary and four standby) channels power (90 A in
total) inputs and outputs. It can supply power with “1 + 1 protection” to
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Cabinet Hardware Description (HD)
maximum four devices at the same time. Each device can access two
channels power supply, and they are mutually protected, so that the device
runs normally even if one power supply fails.
Figure 2 shows the PDP connection diagram.
1 2 3 4 5
6 7 8 9 10
1. –48 V input 2. BGND input 3. PGND 4.BGND input 5. –48 V input
one one input two one
6. –48 V 7. BGND output 8. PGND 9. BGND output 10. –48 V output
output one one (A1–A4) output two (B1–B4) two (B1–B4)
(A1–A4)
Figure 2 PDP connection diagram
PDP –48 V and BGND both have two inputs, and PGND have one input.
The output one (A1–A4) and output two (B1–B4) of –48 V connect to the DC
power connector separately, providing power protection for the device. The
BGND output connects to the power ground of each group, and PGND output
connects to the grounding rod.
PDP specifications are shown in Table 2.
Dimension (mm) Weight (kg)
177 (H) x 442 (W) x 84 (D) 4.9
Table 2 PDP specifications
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Hardware Description (HD) Subrack
2 Subrack
2.1 Subrack Structure
Coriant 7090-2 CEM supports the optical interface, electrical interface, power
port, network management system (NMS) port, and other ports, which are all
front-facing.
The design of 7090-2 CEM meets the ETSI ETS-300119 standard. Figure 3
shows the sub-rack structure overview.
1. Antistatic wrist strap jack 3. Fan area
2. Grounding terminal 4 Power port
Figure 3 Subrack structure
2.2 Subrack Functions
7090-2 CEM is a highly integrated cartridge device, which is composed of a
master unit, switching unit, clock unit, service processing unit, and other
functional units. It provides 10 x GE (o) + 4 x GE (e) + 2 x STM-1.
7090-2 CEM mainly supports the following functions:
Service forwarding and scheduling
System control and communication
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Subrack Hardware Description (HD)
Clock
Hardware and software resets
Table 3 lists the specific functions of 7090-2 CEM.
Functions Description
Service forwarding and scheduling
System control and communication
Basic 10 x GE (o) + 4 x GE (e) +2 x STM-1
functions
TDM services
All fabric modules management
Power supply
126 (Each CES has a
Supported number
corresponding PW.)
Supported clock mode Addaptive/Differential
CES Configurable jitter cache time of CES: 0.125 ms–16 ms
Configurable package cache of CES: 64/128/384/256/512
byte
Supports performance and alarm monitoring
Reset Supports hardware and software resets
Supports circuit clock extracting
Clock Supports Synchronization Status Message (SSM)
Supports the 1588v2 clock with two encapsulation messages:
L2 multicast and UDP/L3 unicast
Table 3 Specific functions of 7090-2 CEM
Table 4 lists the technical data of 7090-2 CEM subrack. The subrack can be
mounted in the cabinet with 300mm depth, and all connections to the 7090-2
CEM are front-facing.
Dimension (mm) Weight (kg)
DC power: 2.25
44.5 (H) x 266 (W) x 209 (D)
AC power: 2.10
Table 4 Subrack Specification
The size of the hanger is not counted.
2.3 System Hardware
The non-blocking switching capacity of the system is 14 G.
Figure 4 shows the operating principle of 7090-2 CEM hardware infrastructure,
including the data switching plane, system control plane, system clock, as well
as management plane interface of the device. The service processing module
supports functions of NNI and UNI for PTN devices.
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Hardware Description (HD) Subrack
Figure 4 Operating principle of 7090-2 CEM hardware infrastructure
2.4 Board Structure
The following two figures show the appearance of 7090-2 CEM board (DC and
AC) and Table 5 describes details of the board components.
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Subrack Hardware Description (HD)
2. Database status 3. Database alarm
1. Antistatic wrist strap jack
Indicator Indicator
5. Control unit status 6. Switch clock alarm
4. NE alarm indicator
indicator indicator
7. Network management 8. 10/100/1000BASE-T
9. GE/FX interface
interface interface
10. Grounding terminal 11. Fan area 12. Power port
13. Power supply status 14. Switch clock status
15. Reset button
indicator indicator
16 Reserved interface 17. GE/FX interface 18. STM-1 interface
Figure 5 7090-2 CEM board structure (DC version)
The power port of the AC board is different from the DC board. For details
about the AC board, refer to the following figure.
Figure 6 7090-2 CEM board structure (AC version)
Item Description
CALM Red; indicates network elements alarms
Green; indicates the operating status of the
XSTA
switch clock module
Indicator
XALM Red; indicates board alarms
Green; indicates the status of the control
CSTA
module
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Hardware Description (HD) Subrack
Item Description
DBALM Red; indicates database alarms
DBSTA Green; indicates the status of the database
Green; indicates sending status of GE laser
TX
interface
Red; indicates receiving status of GE laser
RX
interface
PWR Green; power supply indicator
NMS port, used for connecting the network
NMS
management system
GE GE/FX interface
Interface
10/100/1000MBASE-T 10/100/1000MBASE-T interface
STM-1 STM-1interface
PWR Power port
Grounding terminal Used to connect the protective earth wire
Antistatic wrist strap
Component Used to connect the wrist strap
jack
RST Used to reset
Table 5 7090-2 CEM board description
2.5 Interface Specifications
GE interface
Table 6 shows technical specifications of the GE interface.
Item Value
Interface 1000BASE- 1000BASE- 1000BASE- 1000BASE- 1000BASE-
type SX (0.3 km) LX (10km) EX (40km) ZX (80km) T (0.1 km)
Multi-mode Single- Single- Single- Category 5
Cable type
fiber mode fiber mode fiber mode fiber cable
Encoding NRZ
Centre
wavelength 850 1310 1310 1550 -
(nm)
Transmitting
optical power –9.5 to –3 –11 to –3 –5 to 0 0 to 5 -
(dBm)
Receiving
sensitivity –17 –19 –22 –22 -
(dBm)
Minimum
overload 0 –3 –3 –3 -
point (dBm)
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Subrack Hardware Description (HD)
Item Value
Extinction
9 9 9 9 -
ratio (dB)
Table 6 GE interface technical specifications
FE interface
Table 7 shows technical specifications of the FE interface.
Item Specification
Encoding Manchester Encoding
FE Electrical interface rate 10Mbit/s, 100Mbit/s, and 1000Mbit/s
RJ-45 electrical interface metric Compliant with IEEE 802.3
Table 7 FE interface technical specifications
FX interface
Table 8 shows technical specifications of the FX interface.
Item Specification
Two-fiber bidirectional
Optical interface type
15 km 40 km 80 km
Fiber type Single-mode Single-mode Single-mode
Encoding NRZ
Center wavelength (nm) 1310 1310 1550
Transmitting optical power
–15 to –8 –5 to 0 –5 to 0
(dBm)
Receiving sensitivity
–28 –34 –34
(dBm)
Minimum overload point
–8 –10 –10
(dBm)
Extinction ratio (dB) 8.2 10 10
Table 8 FX interface technical specifications
STM-1 interface
Table 9 shows technical specifications of the STM-1 interface.
Item Specification
Standard bit rate (kbit/s) 155520
Two-fiber bidirectional
Optical interface type
S-1.1 (15 km) L-1.1 (40 km) L-1.2 (80 km)
Fiber type Single-mode Single-mode Single-mode
Encoding NRZ
Center wavelength (nm) 1310 1310 1550
Transmitting optical power
–15 to –8 –5 to 0 –5 to 0
(dBm)
Receiving sensitivity –28 –34 –34
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Hardware Description (HD) Subrack
Item Specification
(dBm)
Minimum overload point
–8 –10 –10
(dBm)
Extinction ratio (dB) 8.2 10 10
Table 9 STM-1 interface technical specifications
2.6 Indicators
Power supply indicator
Table 10 lists power module status and corresponding status of indicators.
Working Status PWR (green)
Power on On
Power off or polarity reverse Off
Table 10 PWR indicator description
Switch clock module indicator and control module indicator
Table 11 shows switch clock module indicators and control module indicators.
XALM XSTA CALM CSTA
Working Status
(Red) (Green) (Red) (Green)
Running normally
Flashing (2 Flashing (2
without reporting OFF OFF
times/s) times/s)
alarm
Critical Flashing (4 Flashing (2 Flashing (4 Flashing (2
alarm times/s) times/s) times/s) times/s)
Alarm
Major Flashing (2 Flashing Flashing (2
source is Flashing (1time/s)
alarm times/s) (1time/s) times/s)
the board
Minor Flashing Flashing (2 Flashing Flashing (2
alarm (1time/3s) times/s) (1time/3s) times/s)
Critical Flashing (2 Flashing (4 Flashing (2
OFF
alarm times/s) times/s) times/s)
Alarm
Major Flashing (2 Flashing Flashing (2
source is OFF
alarm times/s) (1time/s) times/s)
NE
Minor Flashing (2 Flashing Flashing (2
OFF
alarm times/s) (1time/3s) times/s)
Table 11 Switch clock module indicators and control module indicators
Flashing (4 times/s) means that the indicator is ON for 0.25 second and OFF
for another 0.25 second.
Flashing (1 time/s) means that the indicator is ON for 1 second and OFF for
another one second.
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Subrack Hardware Description (HD)
Flashing (1 time/3s) means that the indicator is ON for 3 seconds and OFF for
another 3 seconds.
Database indicator
Table 12 lists the database alarm indicator (DBALM) and operating indicator
(DBSTA).
Working status DBALM(red) DBSTA(green)
Normal running OFF ON
Reading or writing OFF Flashing
Table 12 Device DBALM and DBSTA indicator description
Status indicators of GE optical interface
Table 13 lists laser sending status indicator (TX) and laser receiving status
indicator (RX) of GE interface board laser.
Indicator Status
Working Status ALS Status
TX (Green) RX (Red)
GE Interface in status of connection ON OFF
LOS alarm OFF ON ON
Deactivated OFF OFF
Interface in status of connection ON OFF
LOS alarm ON OFF OFF
Deactivated OFF OFF
Table 13 Status indicators of GE optical interface
Status indicators of STM-1 interface
Table 14 lists laser sending status indicator (TX) and laser receiving status
indicator (RX) of STM-1 interface board laser.
Indicator Status
Working Status ALS Status
TX (Green) RX (Red)
STM-1 Interface in status of
ON OFF
connection
OFF
LOS alarm ON ON
Deactivated OFF OFF
STM-1 Interface in status of
ON OFF
connection
ON
LOS alarm OFF OFF
Deactivated OFF OFF
Table 14 Status indicators of STM-1 interface
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Hardware Description (HD) Abbreviations
Abbreviations
CES Circuit Emulation Service
GE Gigabit Ethernet
IEC
International Electrotechnical Commission
LAN Local Area Network
PW Pseudo Wire
SAToP Structure-Agnostic Time Division Multiplexing(TDM) over Packet
STM-N Synchronous Transfer ModuleN
TDM Time Division Multiplex
WAN Wide Area Network
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