Nvidia Spectrum-2 SN3000 1U User manual

Exported on Nov/06/2023 12:51 PM
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NVIDIA Spectrum-2 SN3000 1U and 2U
Switch Systems Hardware User Manual
NVIDIA Spectrum-2 SN3000 1U and 2U Switch Systems Hardware User Manual, SN3420,
SN3700, SN3700C, SN3800


2
Table of Contents
Ordering Information .......................................................................... 6
SN3420 Ordering Part Numbers ....................................................................6
SN3700/SN3700C Ordering Part Numbers ........................................................6
SN3750-SX Ordering Part Numbers ................................................................8
Introduction....................................................................................10
Speed and Switching Capabilities ............................................................... 11
Management Interfaces, PSUs and Fans ........................................................ 12
Features ............................................................................................. 12
Certifications ....................................................................................... 12
Installation.....................................................................................13
System Installation and Initialization ........................................................... 13
Safety Warnings .................................................................................... 13
100A DC Disconnect Switch Requirement ...................................................... 13
Air Flow.............................................................................................. 14
Package Contents .................................................................................. 15
Mounting Options .................................................................................. 15
SN3700/SN3700C Fixed Rail Kit .................................................................. 15
SN3700/SN3700C Telescopic Rail Kit ............................................................ 20
Removing the System from the Rack........................................................ 24
SN3750-SX Tool-less Rail Kit ...................................................................... 25
Cable Installation .................................................................................. 34
Power Cable and Cable Retainer ............................................................ 34
Port Cables...................................................................................... 36
Initial Power On .................................................................................... 39
System Bring-Up.................................................................................... 40
Configuring Network Attributes Using NVIDIA Onyx (MLNX-OS) ......................... 40
Configuring Network Attributes Using Cumulus Linux .................................... 43
FRU Replacements ................................................................................. 43
Power Supplies ................................................................................. 44
Fans .............................................................................................. 45
SN3510 Fixed Rail Kit.............................................................................. 46
Removing the System from the Rack........................................................ 51

3
SN3420 Fixed Rail Kit.............................................................................. 51
Interfaces ......................................................................................56
Data Interfaces ..................................................................................... 56
RS232 (Console) .................................................................................... 57
Management ........................................................................................ 58
USB ................................................................................................... 58
Reset Button ........................................................................................ 58
Status and Port LEDs............................................................................... 58
LED Notifications................................................................................... 59
System Status LED ............................................................................. 59
Fan Status LED.................................................................................. 60
Power Supply Status LEDs..................................................................... 61
Unit Identification LED........................................................................ 62
Port LEDs ........................................................................................ 62
Inventory Information ............................................................................. 65
Software Management .......................................................................67
Software Upgrade.................................................................................. 67
NVIDIA Onyx (MLNX-OS) Software Upgrade................................................. 67
Switch Firmware Update...................................................................... 67
Cumulus Linux Software Upgrade ........................................................... 67
Troubleshooting ...............................................................................68
Specifications..................................................................................70
SN3700/SN3700C Specifications ................................................................. 70
SN3750-SX Specifications ......................................................................... 70
SN3420 Specifications ............................................................................. 71
Appendixes.....................................................................................73
Accessory and Replacement Parts ............................................................... 73
Thermal Threshold Definitions................................................................... 74
Interface Specifications........................................................................... 74
QSFP28 Pin Description ....................................................................... 74
QSFP28 Pin Description ....................................................................... 75
Adapter Dimensions ........................................................................... 76
SFP Pin Description ............................................................................ 77
RJ45 to DB9 Harness Pinout .................................................................. 78

4
RJ45 to DB9 Harness Pinout .................................................................. 79
Disassembly and Disposal ......................................................................... 79
Disassembly Procedure........................................................................ 79
Disposal.......................................................................................... 79
Document Revision History ..................................................................81


5
Relevant for Models: SN3420, SN3700, SN3700C and SN3750-SX.
About this Manual
This manual describes the installation and basic use of NVIDIA Ethernet switches based on the NVIDIA
Spectrum-2 ASIC.
Ordering Information
SeeOrdering Information.
Intended Audience
This manual is intended for IT managers and system administrators.
Related Documentation
Document Description
NVIDIA Onyx (MLNX-OS) User
Manual
This document contains information regarding the configuration and
management of the NVIDIA Onyx® (MLNX-OS®) software. See https://
www.nvidia.com/en-us/networking/ethernet-switching/onyx/.
Cumulus Linux User Guide This document contains information regarding the configuration and
management of the Cumulus® Linux® software. See https://
docs.nvidia.com/networking-ethernet-software/cumulus-linux-51/.
Open Network Install
Environment (ONIE) Quick Start
Guide
See https://github.com/opencomputeproject/onie/wiki/Quick-Start-Guide/.
Hands-on workshops Cumulus on-site/remote training:https://academy.nvidia.com/en/cumulus-
linux-boot-camp/
NVIDIA Onyx on-site/remote training:https://academy.nvidia.com/en/
course/onyx/?cm=242
On-site/remote services For any tailor-made service, contact [email protected].
Revision History
A list of the changes made to this document are provided in Document Revision History.

6
Ordering Information
The following table lists ordering information for the available systems.
Please pay attention to the airflow direction when ordering your system. For more details, seeAir
Flow.
SN3420 Ordering Part Numbers
System
Model
NVIDIA SKU Legacy
OPN
Description Lifecyc
le
Phase
SN3420 920-9N213-00F
7-0X0
MSN3420-
CB2F
NVIDIA Spectrum-2 based 25GbE/100GbE 1U Open Ethernet
switch with Onyx, 48 SFP28 ports and 12 QSFP28 ports, 2
power supplies (AC), x86 CPU, standard depth, P2C airflow,
Rail Kit
MP
(Mass
Producti
on)
920-9N213-00R
7-0X0
MSN3420-
CB2R
NVIDIA Spectrum-2 based 25GbE/100GbE 1U Open Ethernet
switch with Onyx, 48 SFP28 ports and 12 QSFP28 ports, 2
power supplies (AC), x86 CPU, C2P airflow, Short-depth, Rail
Kit
MP
(Mass
Producti
on)
920-9N213-00F
7-0C0
MSN3420-
CB2FC
NVIDIA Spectrum-2 based 25GbE/100GbE 1U Open Ethernet
switch with Cumulus Linux, 48 SFP28 ports and 12 QSFP28
ports, 2 power supplies (AC), x86 CPU, standard depth, P2C
airflow, Rail Kit
MP
(Mass
Producti
on)
920-9N213-00R
7-0C0
MSN3420-
CB2RC
NVIDIA Spectrum-2 based 25GbE/100GbE 1U Open Ethernet
switch with Cumulus Linux, 48 SFP28 ports and 12 QSFP28
ports, 2 power supplies (AC), x86 CPU, standard depth, C2P
airflow, Rail Kit
MP
(Mass
Producti
on)
920-9N213-00F
7-0N0
MSN3420-
CB2FO
NVIDIA Spectrum-2 based 25GbE/100GbE 1U Open Ethernet
switch with ONIE, 48 SFP28 ports and 12 QSFP28 ports, 2
power supplies (AC), x86 CPU, P2C airflow, Short-depth, Rail
Kit
MP
(Mass
Producti
on)
920-9N213-00R
7-0N0
MSN3420-
CB2RO
NVIDIA Spectrum-2 based 25GbE/100GbE 1U Open Ethernet
switch with ONIE, 48 SFP28 ports and 12 QSFP28 ports, 2
power supplies (AC), x86 CPU, C2P airflow, Short-depth, Rail
Kit
MP
(Mass
Producti
on)
SN3700/SN3700C Ordering Part Numbers
System
Model
NVIDIA SKU Legacy
OPN
Description Lifecyc
le
Phase
SN3700C 920-9N201-00
F7-0X0
MSN3700-
CS2F
NVIDIA Spectrum®-2 based 100GbE 1U Open Ethernet Switch
with NVIDIA Onyx, 32 QSFP28 ports, 2 Power Supplies (AC),
Standard depth, x86 CPU, P2C airflow, Rail Kit
MP
(Mass
Producti
on)
920-9N201-00
R7-0X0
MSN3700-
CS2R
NVIDIA Spectrum®-2 based 100GbE 1U Open Ethernet Switch
with NVIDIA Onyx, 32 QSFP28 ports, 2 Power Supplies (AC),
Standard depth, x86 CPU, C2P airflow, Rail Kit
MP
(Mass
Producti
on)

7
System
Model
NVIDIA SKU Legacy
OPN
Description Lifecyc
le
Phase
920-9N201-00
F7-0C0
MSN3700-
CS2FC
NVIDIA Spectrum®-2 based 100GbE 1U Open Ethernet Switch
with Cumulus Linux, 32 QSFP28 ports, 2 Power Supplies (AC),
Standard depth, x86 CPU, P2C airflow, Rail Kit
MP
(Mass
Producti
on)
920-9N201-00
R7-0C0
MSN3700-
CS2RC
NVIDIA Spectrum®-2 based 100GbE 1U Open Ethernet Switch
with Cumulus Linux, 32 QSFP28 ports, 2 Power Supplies (AC),
Standard depth, x86 CPU, C2P airflow, Rail Kit
MP
(Mass
Producti
on)
920-9N201-00
F7-0N1
MSN3700-
CS2FO
NVIDIA Spectrum®-2 based 100GbE 1U Open Switch with ONIE
boot loader, 32 QSFP28 ports, 2 Power Supplies (AC), Standard
depth, x86 CPU, P2C airflow, Rail Kit
MP
(Mass
Producti
on)
920-9N201-00
R7-0N0
MSN3700-
CS2RO
NVIDIA Spectrum®-2 based 100GbE 1U Open Switch with ONIE
boot loader, 32 QSFP28 ports, 2 Power Supplies (AC), Standard
depth, x86 CPU, C2P airflow, Rail Kit
MP
(Mass
Producti
on)
SN3700 920-9N201-00
FA-0X0
MSN3700-
VS2F
NVIDIA Spectrum®-2 based 200GbE 1U Open Ethernet Switch
with NVIDIA Onyx, 32 QSFP56 ports, 2 Power Supplies (AC),
Standard depth, x86 CPU, P2C airflow, Rail Kit
EoL
(End of
Life)
920-9N201-00
RA-0X0
MSN3700-
VS2R
NVIDIA Spectrum®-2 based 200GbE 1U Open Ethernet Switch
with NVIDIA Onyx, 32 QSFP56 ports, 2 Power Supplies (AC),
Standard depth, x86 CPU, C2P airflow, Rail Kit
EoL
(End of
Life)
920-9N201-00
FA-0C0
MSN3700-
VS2FC
NVIDIA Spectrum®-2 based 200GbE 1U Open Ethernet Switch
with Cumulus Linux, 32 QSFP56 ports, 2 Power Supplies (AC),
Standard depth, x86 CPU, P2C airflow, Rail Kit
MP
(Mass
Producti
on)
920-9N201-00
RA-0C0
MSN3700-
VS2RC
NVIDIA Spectrum®-2 based 200GbE 1U Open Ethernet Switch
with Cumulus Linux, 32 QSFP56 ports, 2 Power Supplies (AC),
Standard depth, x86 CPU, C2P airflow, Rail Kit
MP
(Mass
Producti
on)
920-9N201-00
FA-0N0
MSN3700-
VS2FO
NVIDIA Spectrum®-2 based 200GbE 1U Open Ethernet Switch
with ONIE boot loader, 32 QSFP56 ports, 2 Power Supplies
(AC), Standard depth, x86 CPU, P2C airflow, Rail Kit
MP
(Mass
Producti
on)
920-9N201-00
RA-0N0
MSN3700-
VS2RO
NVIDIA Spectrum®-2 based 200GbE 1U Open Ethernet Switch
with ONIE boot loader, 32 QSFP56 ports, 2 Power Supplies
(AC), Standard depth, x86 CPU, C2P airflow, Rail Kit
MP
(Mass
Producti
on)

8
SN3750-SX Ordering Part Numbers
System
Model
NVIDIA SKU Legacy
OPN
Description L
i
f
e
c
y
c
l
e
P
h
a
s
e
SN3750X 920-9N210-00FA
-0C0
MSN3750-
VS2FSO
NVIDIA Spectrum-2 based 200GbE 1U X-Haul Ethernet Switch with
ONIE, 32 QSFP56 ports, 2 Power Supplies (AC), x86 CPU, Secured-
boot, standard depth, P2C airflow, SyncE and PPS, Rail Kit
E
n
gi
n
e
e
ri
n
g
s
a
m
p
le
s
920-9N210-00FA
-0N5
MSN3750-
VS2RSO
NVIDIA Spectrum-2 based 200GbE 1U X-Haul Ethernet Switch with
ONIE, 32 QSFP56 ports, 2 Power Supplies (AC), x86 CPU, Secured-
boot, standard depth, C2P airflow, SyncE and PPS, Rail Kit
E
n
gi
n
e
e
ri
n
g
s
a
m
p
le
s

9
System
Model
NVIDIA SKU Legacy
OPN
Description L
i
f
e
c
y
c
l
e
P
h
a
s
e
920-9N210-00FA
-0C1
MSN3750-
VS2FSC
NVIDIA Spectrum-2 based 200GbE 1U X-Haul Ethernet Switch with
Cumulus Linux, 32 QSFP56 ports, 2 Power Supplies (AC), x86 CPU,
Secured-boot, standard depth, P2C airflow, SyncE and PPS, Rail
Kit
E
n
gi
n
e
e
ri
n
g
s
a
m
p
le
s
920-9N210-00FA
-0C2
MSN3750-
VS2RSC
NVIDIA Spectrum-2 based 200GbE 1U X-Haul Ethernet Switch with
Cumulus Linux, 32 QSFP56 ports, 2 Power Supplies (AC), x86 CPU,
Secured-boot, standard depth, C2P airflow, SyncE and PPS, Rail
Kit
E
n
gi
n
e
e
ri
n
g
s
a
m
p
le
s

10
Introduction
NVIDIASN3000 series switches are the thirdgenerationof NVIDIA Spectrum purpose-built
switchesfor leaf/spine and super-spine datacenter applications. Allowing maximum flexibility,
SN3000 series provides port speeds spanning from 1GbE to 200GbE, and a port density that enables
full rack connectivity to any server at any speed. In addition, the uplink ports allow a variety of
blocking ratios to suit any application requirement. This series is ideal for building wire-speed and
cloud-scale layer-2 and layer-3 networks. SN3000 platforms deliver high performance, consistent
low latency along with support for advanced software defined networking features, making it the
ideal choice for web scale IT, cloud, hyperconverged storage and data analytics applications.
Open Ethernet breaks the paradigm of traditional switch systems, eliminating vendor lock-in.
Instead of forcing network operators to use the specific software that is provided by the switch
vendor, Open Ethernet offers the flexibility to use a choice of operating systems on top of Ethernet
switches, thereby re-gaining control of the network, and optimizing utilization, efficiency and
overall return on investment. Open Ethernet adopts the same principles as standard open solutions
for servers and storage, and applies them to the world of networking infrastructure. It encourages
an ecosystem of open source, standard network solutions. These solutions can then be easily
deployed into the modern data center across network equipment that eases management and
ensures full interoperability. With a range of system form factors, and a rich software ecosystem,
the SN3000 series allows you to pick and choose the right components for your data center.
NVIDIA SN3000 series platforms are based on the high-performance 50G PAM4 capableNVIDIA
Spectrum-2 ASIC. SN3000 platforms are available in a range of configurations, each delivering high
performance combined with feature-rich layer 2 and layer 3 forwarding, ideally suited for both top-
of-rack leaf and fixed configuration spines. The NVIDIA SN3000 series provides full wire speed, cut
through-mode latency, on-chip fully-shared 42MB packet buffering, and flexible port use in addition
to advanced capabilities. Combining a wide range of innovations in the area of programmability,
telemetry, and tunneling with industry leading performance, NVIDIA SN3000 series is capable of
addressing today’s data center’s complex networking requirements, growth and expansion.
As data-center switching architectures increasingly adopt 100GbE, the SN3420 system offers a high
performance, cost-effective way to evolve host connectivity from 10G to 25G. Equipped with 48
ports of 10/25GbE and 12 ports of up to 100GbE in a compact 1U form factor, the SN3420 is an ideal
Top-of-Rack (ToR) switch platform, delivering a total throughput of up to 4.8Tb/s with a processing
capacity of 3.58Bpps. The SN3420 enables the seamless use of QSFP28 connections for leaf-spine
topology and future-proofing the data center.
NVIDIA SN3700 200GbE spine/super-spine offers 32 ports of 200GbE in a compact 1U form factor. It
enables connectivity to endpoints at different speeds and carries a throughput of 6.4Tb/ s, with a
landmark 8.33Bpps processing capacity. SN3700C allows for maximum flexibility, with ports spanning
from 1GbE to 100GbE and port density that enables full rack connectivity to any server at any
speed. SN3700C ports are fully splittable to up to 128 x 10/25GbE ports.
The SN3750-SX NVIDIA Spectrum-2 based 200GbE 1U X-Haul Ethernet switch offers a suite of key
features for both AI and 5G Telco, including ultra-rich Layer 2 and Layer 3 forwarding, VXLAN/EVPN
tunneling, multi-homing and telemetry.
For a full list of all available ordering options, seeOrdering Information.

11
SN3420 Front View
SN3420 Rear View
SN3700/SN3700CFront View
SN3700 Rear View
SN3700C Rear View
SN3750-SX Front View
SN3750-SX Rear View
Speed and Switching Capabilities
The table below describes maximum throughput and interface speed per system model.
System Model Interfaces Supported Rates Max Throughput
SN3700C 32 x QSFP28 32 x 100GbE/40GbE
64 x 50GbE
128 x 1/10/25GbE
3.2Tb/s
SN3700 32 x QSFP56 32 x 200GbE/40GbE
64 x 100GbE
128 x 1/10/25/50GbE
6.4Tb/s
SN3750-SX 32 x QSFP56 32 x 200GbE/40GbE
64 x 100GbE
128 x 1/10/25/50GbE
6.4Tb/s

12
System Model Interfaces Supported Rates Max Throughput
SN3420 48 x SFP28 + 12 x
QSFP28
48 x 10/25GbE
12 x 100GbE
4.8Tb/s
*The system can support different interfaces and speed rates using QSFP to SFP adapters or hybrid
cables. For further information, see Splitter (Breakout) Cables and Adapters.
Management Interfaces, PSUs and Fans
The table below lists the various management interfaces, PSUs and fans per system model.
System Model uUSB MGT (Management) Console PSU Fan
SN3700C Front Front Front Yes, 2 Yes, 4
SN3700 Front Front Front Yes, 2 Yes, 6
SN3750-SX Front Front Front Yes, 2 Yes, 6
SN3420 Front Front Front Yes, 2 Yes, 5
Features
For a full feature list, please refer to the system’s product brief. Go to https://www.nvidia.com/en-
us/networking/. In the main menu, click on Products > Ethernet Switch Systems, and select the
desired product family.
Certifications
The list of certifications (such as EMC, Safety and others) per system for different regions of the
world is located on the NVIDIA website at https://www.nvidia.com/en-us/networking/
environmental-and-regulatory-compliance/.

13
Installation
System Installation and Initialization
Installation and initialization of the system require attention to the normal mechanical, power, and
thermal precautions for rack-mounted equipment.
The installation procedure for the system involves the following phases:
Step Procedure See
1 Follow the safety warnings Safety Warnings
2 Install a 100A DC disconnect switch 100A DC Disconnect Switch Requirement
3 Pay attention to the air flow consideration within
the system and rack
Air Flow
4 Make sure that none of the package contents is
missing or damaged
Package Contents
5 Mount the system into a rack enclosure 19" System Mounting Options
6 Power on the system .Initial Power On v2.1
7 Perform system bring-up System Bring-Up
8 [Optional] FRU replacements FRU Replacements
Safety Warnings
Prior to the installation, please review the Safety Warnings. Note that some warnings may not apply
to all models.
100A DC Disconnect Switch Requirement
Before installing the switch system, make sure a DC disconnect switch is available and can be
connected to the switch externally via an over-current DC circuit breaker of up to 100A.
The optimaloperating voltage range of the switch system is between 48VDC to 60VDC.
The rack mounting holes conform to the EIA-310 standard for 19-inch racks. Take
precautions to guarantee proper ventilation in order to maintain good airflow at ambient
temperature.

Unless otherwise specified, NVIDIA products are designed to work in an environmentally
controlled data center with low levels of gaseous and dust (particulate) contamination.
The operation environment should meet severity level G1 as per ISA 71.04 for gaseous
contamination and ISO 14644-1 class 8 for cleanliness level.


14
• •
Air Flow
NVIDIA systems are offered with two air flow patterns:
Power (rear) side inlet to connector side
outlet - marked with blue power supplies/fans
FRUs’ handles.
Connector (front) side inlet to power side
outlet - marked with red power supplies/fans
FRUs’ handles.
The table below provides an air flow color legend and respective OPN designation.
Direction Description and OPN Designation
Connector side inlet to power side outlet. Red latches are placed on the
power inlet side.
OPN designation is “-R”.
Power side inlet to connector side outlet. Blue latches are placed on the
power inlet side.
OPN designation is “-F”.
The DC disconnect switch must be provided by the customer.

the images are provided for illustration purposes only. The design may slightly vary in
different systems

All servers and systems in the same rack should be planned with the same airflow direction.
All FRU components need to have the same air flow direction. A mismatch in the air flow
will affect the heat dissipation.


15
•
•
•
•
•
•
•
•
•
•
•
Package Contents
Before installing your new system, unpack it and check against the parts list below that all the parts
have been sent. Check the parts for visible damage that may have occurred during shipping.
The package content is as follows:
1 – System
1 – Rail kit
1 – Power cable for each power supply unit – Type C13-C14
1– Harness: HAR000028 – Harness RS232 2M cable – DB9 to RJ-45
1 – Cable retainer for each power supply unit
Mounting Options
By default, the systems are sold with fixed rail-kits. Telescopic Rail-kits are available for some
systems, and should be purchased separately. For installation instructions, refer to the relevant links
in the following table:
System Model Fixed Rail-kit (Default) Telescopic Rail-kit
SN3420 SN3420 Fixed Rail Kit N/A
SN3700/SN3700C SN3700/SN3700C Fixed Rail Kit SN3700/SN3700C Telescopic Rail Kit
SN3750-SX SN3750-SX Tool-less Rail KitN/A
SN3700/SN3700C Fixed Rail Kit
Kit Part Number Legacy Part Number Rack Size and Rack Depth Range
930-9NRKT-00JN-000 MTEF-KIT-J 600-800 mm
The following parts are included in the fixed rail kit (see figure below):
2x Rack mount rails (A)
2x Rack mount blades (B)
2x Rack mount ears (C)
8x M6 Standard cage nuts (D)
8x M6 Standard pan-head Phillips screws (E)
4x Flat Head Phillips 100 DEG 6-32X1/4" ST.ST PATCH 360 (F)
If anything is damaged or missing, contact your sales representative at
[email protected].


16
•
•
•
Rack Rail Kit Parts
Prerequisites:
Before mounting the system to the rack, select the way you wish to place the system. Pay attention
to the airflow within the rack cooling, connector and cabling options.
While planning how to place the system, consider the two installation options shown in the figures
below, and review the following points:
Make sure the system air flow is compatible with your installation selection. It is important to
keep the airflow within the rack in the same direction.
Note that the part of the system to which you choose to attach the rails (the front panel
direction, as demonstrated in Option 1 or the FRUs direction, as demonstrated in Option 2)
will determine the system’s adjustable side. The system’s part to which the brackets are
attached will be adjacent to the cabinet.
The FRU side is extractable. Mounting the rack brackets inverted to the FRU side (Option 2)
will allow you to slide the FRUs, in and out.

17
Short Racks (430-580 mm) Installation Options
 
Standard Racks (580-800 mm) Installation Options

Short Racks (430-580 mm) Installation - Side View
Front side (ports):
Rear side (FRUs):
Standard Racks (580-800 mm) Installation - Side View
Front side (ports):
Rear side (FRUs):
In short racks, the system’s ventilation openings should be framed by the designated
windows in the rails, as shown below.


18
1.
2.
3.
To mount the system into the rack:
Attach the left and right rack mount rails (A) to the switch, by gently pushing the switch
chassis’ pins through the slider key holes, until locking occurs.
Secure the chassis in the rails by screwing 2 flat head Phillips screws (F) in the designated
points with a torque of 1.5±0.2 Nm.
Attaching the Rails to the Chassis
Attach the left and right rack mount ears (C) to the switch, by gently pushing the switch
chassis’ pins through the slider key holes, until locking occurs. Secure the system in the
brackets by screwing the remaining 2 flat head Phillips screws (F) in the designated points
with a torque of 1.5±0.2 Nm.
Attaching the Brackets to the Chassis
At least two people are required to safely mount the system in the rack.

The following steps include illustrations that show front side (ports) installation, yet all
instructions apply to all installation options.


19
4.
5.
6.
Install 8 cage nuts (D) in the desired 1U slots of the rack: 4 cage nuts in the non-extractable
side and 4 cage nuts in the extractable side.
Installing the Cage Nuts
While your installation partner is supporting the system’s weight, perform the following
steps:
Attach the two rack mount blades (B) to the back side (FRU side) of the rack by inserting four
M6 screws (E) in the designated cage nuts. Do not tighten the screws yet.
Attaching the Brackets to the Rack
Slide the switch with the rails (A) and ears (C) installed on it into the left and right rails (B)
on the rack. Use four M6 screws (E) to fix the rack mount ears (C) to the rack. Do not tighten
the screws yet.
While each rack U (unit) consists of three holes, the cage nut should be installed
vertically with its ears engaging the top and bottom holes only.


20
7.
1.
2.
3.
4.
5.
•
•
•
•
•
•
Sliding the Blades in the Rails
When fully inserted, fix the switch by tightening the 8 screws (E) inserted in Step 5 and Step
6 with a torque of 4.5±0.5.
Removing the System from the Rack
To remove a unit from the rack:
Turn off the system and disconnect it from peripherals and from the electrical outlet.
While your installation partner is supporting the system’s weight:
Loosen the screws attaching the rack mount ears (C) to the rack. Do not remove them yet.
Loosen the screws attaching the rack mount blades (B) to the rack, and pull the blades
towards you, while your partner is holding the system.
Extract the loosened screws from Step 2 and dismount the system from the rack.
Remove the rails and brackets from the chassis by unscrewing 4 screws.
SN3700/SN3700C Telescopic Rail Kit
There are two installation kit options:
Standard depth systems should be mounted using the standard rail kit.
Short depth systems can be mounted using either of the rail kits.
Kit Part Number Legacy Kit Part Number Rack Size and Rack Depth Range
930-9BRKT-00JJ-000 MTEF-KIT-F 600-800 mm
The following parts are included in the rail kit package (see figure below):
1x Right side slider (A)
1x Left side slider (B)
2x Rear rail (C)
2x Front rail (D)
The telescopic rail kit is not included in the system’s package, and can be purchased
separately.
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