Digi 6350-SR User manual

Digi 6350-SR/6355-SR
LTE Router
User Guide

Revision history 90002315
Revision Date Decription
A January
2019
Initial release of Digi-branded version of the Digi 6350-SR/6355-SR LTE Router
User Guide.
B April
2020
Update based on firmware version 20.2 release:
nWith firmware release 20.2, Active Recovery has been renamed to Digi
SureLinkTM.
nAfter upgrading to firmware release 20.2, if a configuration erase is
performed, the Digi 6350-SR/6355-SR will default to Digi Remote
Manager rather than to aView.
See Important information about upgrading to firmware version 20.2.x for
further information.
Trademarks and copyright
Digi, Digi International, and the Digi logo are trademarks or registered trademarks in the United
States and other countries worldwide. All other trademarks mentioned in this document are the
property of their respective owners.
© 2019 Digi International Inc. All rights reserved.
Disclaimers
Information in this document is subject to change without notice and does not represent a
commitment on the part of Digi International. Digi provides this document “as is,” without warranty of
any kind, expressed or implied, including, but not limited to, the implied warranties of fitness or
merchantability for a particular purpose. Digi may make improvements and/or changes in this manual
or in the product(s) and/or the program(s) described in this manual at any time.
Warranty
To view product warranty information, go to the following website:
www.digi.com/howtobuy/terms
Customer support
Gather support information: Before contacting Digi technical support for help, gather the following
information:
Product name and model
Product serial number (s)
Firmware version
Operating system/browser (if applicable)
Digi 6350-SR/6355-SR LTE Router User Guide 2

Logs (from time of reported issue)
Trace (if possible)
Description of issue
Steps to reproduce
Contact Digi technical support: Digi offers multiple technical support plans and service packages.
Contact us at +1 952.912.3444 or visit us at www.digi.com/support.
Feedback
To provide feedback on this document, email your comments to
[e-mail]
Include the document title and part number (Digi 6350-SR/6355-SR LTE Router User Guide, 90002315
A) in the subject line of your email.
Digi 6350-SR/6355-SR LTE Router User Guide 3

Contents
Welcome
Package contents 8
Exchanging power tips 8
Ports and connectors 9
Device LEDs 11
Important information about upgrading to firmware version 20.2.x 11
Device defaults to Digi Remote Manager after configuration erase 11
Default SureLink configuration 13
Initial setup
Location selection 16
Physical setup 16
Plug in LTE modem 17
Network integration 19
Antenna positioning 19
LTE signal status 20
Signal bars explained 20
Default settings 21
Custom settings 22
Getting started with aView
About aView 24
Viewing and editing group configurations 24
Upgrading firmware 24
Using remote commands 25
Learning more 26
Interface configuration
Changing the LAN subnet 28
Creating new interfaces 28
VLAN management 29
Configure LAN port as (VLAN) 29
Wi-Fi options
Wi-Fi 34
Digi 6350-SR/6355-SR LTE Router User Guide 4

Digi 6350-SR/6355-SR LTE Router User Guide 5
Client mode 34
Wi-Fi as WAN 34
Firewall settings
Port forwarding 37
Packet filtering 37
Dual WAN configurations
About dual WAN configuration 39
Failover 39
Connectivity monitoring 39
Carrier Smart Select 40
Load balancing 40
Virtual Router Redundancy Protocol (VRRP)
About VRRP 43
Configuring VRRP 43
Troubleshooting
Resetting your device 45
Out-of-band SMS commands 45
Support report 45
For firmware version 19.11.x or newer: 46
For firmware version 19.8.x or older: 46
Persistent system logs 46
LTE troubleshooting tree 48
AT command access 55
Terminal on unit 56
Using Terminal on Unit link 58
Data usage estimates 58
Local device management
Enabling local management and logging in to web UI 61
Define a custom APN 62
Serial port setup
Connecting the serial ports 64
Serial port pinout and use 65
Wiring for remote access 65
USB-to-serial access 66
IntelliFlow dashboard
About IntelliFlow 70
System resources 70

Digi 6350-SR/6355-SR LTE Router User Guide 6
Average CPU-and-RAM-usage 70
Top data users 71
Host summary 71
Host summary table 71
Top servers accessed 72
Data over time 72
Port usage 73
Quality of Service (QOS)
About QOS 75
QOS configuration 75
QOS Binding 75
QOS Policy 76
QOS Rule 76
Accessing Admin CLI
Using the Terminal on a Unit link 78
Direct ssh access 79
Command breakdown 79
Antenna notes and solutions
Antenna terminology 82
Physical specifications 83
Antennas tested by Digi 84
Extra-small IoT paddle antennas 85
Large external MIMO antenna (outdoor rated) 86
Flat MIMO antenna #1 87
Flat MIMO antenna #2 88
Paddle extender 89

Welcome
Package contents 8
Exchanging power tips 8
Ports and connectors 9
Device LEDs 11
Important information about upgrading to firmware version 20.2.x 11
Digi 6350-SR/6355-SR LTE Router User Guide 7

Welcome Package contents
Digi 6350-SR/6355-SR LTE Router User Guide 8
Package contents
Item Description
Digi 6350-
SR/6355-SR
unit
Digi 1002-CM
unit
Cellular
antennas
(2x)
Wi-Fi
antennas
(2x)—Digi
6350-SR only
Power
supply
Interchangea
ble power
plug tips
Note One plate covers the plug-in slot completely; the other has holes that allow
the antennas to protrude from the CM modem.
Plastic face
plates (2x)
Exchanging power tips
The Digi 6350-SR/6355-SR may include four interchangeable plug tips that allow the Power Supply
Unit (PSU) to operate in most countries. The PSU comes with the United States style plug installed.

Welcome Ports and connectors
Digi 6350-SR/6355-SR LTE Router User Guide 9
To change the plug tip:
1. While holding down the PUSH button, slide the current plug tip forward.
2. Pull off the attached plug tip.
3. Slide the new tip down into place until it clicks.
Note For more information regarding power-tip compatibility with global deployments, visit
www.worldstandards.eu/electricity/plugs-and-sockets/.
Ports and connectors
Note WiFi Antennas are NOT included with Digi 6355-SRs.

Welcome Ports and connectors
Digi 6350-SR/6355-SR LTE Router User Guide 10

Welcome Device LEDs
Digi 6350-SR/6355-SR LTE Router User Guide 11
Device LEDs
Important information about upgrading to firmware version
20.2.x
Device defaults to Digi Remote Manager after configuration erase
With firmware version 20.2.x, the default cloud-based management service for the Digi 6350-SR/6355-
SR device is Digi Remote Manager.
Digi 6350-SR/6355-SR devices upgraded from a firmware version prior to 20.2.xto firmware version
20.2.xor greater will retain their central management configuration. Therefore, if the device was
previously configured to use aView for central management, it will continue to use aView after
upgrading to 20.2.xor greater.
However, if you erase the configuration of a device that was upgraded from a firmware version prior
to 20.2.x, it will default to using Digi Remote Manager for cloud-based central device management.
You must reset the cloud configuration to use aView after a configuration erase.
Reset the cloud-based management service to aView
To the cloud-based management service to aView:

Welcome Important information about upgrading to firmware version 20.2.x
Digi 6350-SR/6355-SR LTE Router User Guide 12
1. Log into the Digi 6350-SR/6355-SR WebUI as a user with full Admin access rights.
2. On the menu, click System. Under Configuration, click Device Configuration.
The Configuration window is displayed.
3. Click Central Management.
4. Click Enable central management, if it central management is not already enabled.
5. For Service, select aView.
The Central management pane refreshes with the default aView configuration.
Review the default configuration. Generally, the default configuration should not be changed.

Welcome Important information about upgrading to firmware version 20.2.x
Digi 6350-SR/6355-SR LTE Router User Guide 13
6. Enable the syslog server.
If the syslog server is not enabled and set to syslog.accns.com, the device will be able to
connect to aView and receive configuration updates, but unless the aView configuration
updates set the syslog server, the device will not be able to send any metrics or logs to aView.
a. Click System >Log >Server list >Server.
b. Click Enable.
c. Verify that Server is set to syslog.accns.com.
d. (Optional) Select the event types to be sent to aView.
7. Click Apply to save the configuration and apply the change.
The Apply button is located at the top of the WebUI page. You may need to scroll to the top of
the page to locate it.
Default SureLink configuration
With firmware version 20.2.x, Active Recovery has been renamed to SureLink. After upgrading from a
firmware version prior to 20.2.xto firmware version 20.2.xor greater, your existing Active Recovery
configuration will remain in place. The only change will be that the feature is renamed from Active
Recovery to SureLink.
However, if you erase the configuration of a device that was upgraded from a firmware version prior
to 20.2.x, it will use the default SureLink settings. The default SureLink settings are:
Interface Status Action
Default wireless WANs (Modem)
IPv4 Enabled Restart interface
IPv6 Disabled
Default WANs
IPv4 Enabled Restart interface
IPv6 Disabled

Welcome Important information about upgrading to firmware version 20.2.x
Digi 6350-SR/6355-SR LTE Router User Guide 14
If the device is configured to synch with aView, it should get the correct SureLink configuration from
aView. If not, you can configure SureLink by using the local WebUI:
1. Log into the Digi 6350-SR/6355-SR WebUI as a user with full Admin access rights.
2. On the menu, click System. Under Configuration, click Device Configuration.
The Configuration window is displayed.
3. Click Network >Interfaces.
4. Click to expand a WANor WWAN (Modem).
5. After creating or selecting the WAN or WWAN, click IPv4 (or IPv6) > SureLink.
6. Make any necessary configuration changes.
7. Click Apply to save the configuration and apply the change.
The Apply button is located at the top of the WebUI page. You may need to scroll to the top of
the page to locate it.

Initial setup
Location selection 16
Physical setup 16
Plug in LTE modem 17
Network integration 19
Antenna positioning 19
LTE signal status 20
Signal bars explained 20
Default settings 21
Custom settings 22
Digi 6350-SR/6355-SR LTE Router User Guide 15

Initial setup Location selection
Digi 6350-SR/6355-SR LTE Router User Guide 16
Location selection
Alongside existing infrastructure
When deploying the Digi 6350-SR/6355-SR alongside existing network equipment, in a telco closet for
instance, please consider the following (when possible):
nAvoid metal enclosures.
nMaximize distance from other equipment.
nMount the device on the most exterior wall.
nHigher elevations are ideal.
New deployments
If there aren't any networking appliances currently installed at the deployment location, consider
mounting the cellular router close to a window for optimal reception (in addition to the
aforementioned list).
Note The Digi 6350-SR does not support Power over Ethernet (PoE). It MUST be located near an
electrical outlet.
Physical setup
There is a label on the bottom of the Digi 6350-SR/6355-SR that indicates the plug-in modem's IMEI
number.
(The modem is referred to as the Digi 1002-CM.)
Verify this IMEI number is an exact match to that on the plug-in modem itself, as well as the label on
the router's packaging.

Initial setup Plug in LTE modem
Digi 6350-SR/6355-SR LTE Router User Guide 17
Note The plug-in modem must be installed before connecting the cellular antennas.
1. Affix the two WiFi antennas to the connectors situated closest to the power socket (Digi 6350-
SR only).
2. Connect the power supply to the corresponding 12V socket on the device's back panel.
3. Gather the two cellular antennas, activated SIM card (2FF), and plug-in modem. These will be
explained later.
Plug in LTE modem
1. Identify the SIM 1 and SIM 2 slots. If using only one SIM card, insert it into SIM 1. A second SIM
may be inserted into slot SIM 2 for an alternate wireless carrier.
2. With the antenna SMA connectors pointing outward, slide the Digi 1002-CM modem into the
router. A clicking sound will indicate it is properly inserted.

Initial setup Plug in LTE modem
Digi 6350-SR/6355-SR LTE Router User Guide 18
3. Slide the white plastic plate over the antenna connectors to cover the plug-in modem as
shown; it will clip into place.
4. Affix the cellular antennas to the two connectors protruding from the device.
Note Be sure to use the plate with the cut outs for the antenna connectors.
To remove the plug-in LTE modem, pinch the two vertical sides of the white clip (as shown above) and
slide out the modem.

Initial setup Network integration
Digi 6350-SR/6355-SR LTE Router User Guide 19
Network integration
Note The Digi 6350-SR is WiFi-Enabled; the Digi 6355-SR does not provide Wi-Fi capabilities. A second
internet connection must be available for cellular failover.
Antenna positioning

Initial setup LTE signal status
Digi 6350-SR/6355-SR LTE Router User Guide 20
LTE signal status
Once powered on with its plug-in modem connected (including the activated SIM card), the Digi 6350-
SR/6355-SR will boot up and attempt to join its cellular network. Initialization may take 30-60
seconds.
LEDs on the Signal Strength Indicator show the quality of cellular reception.
The Network Status LED displays the cellular network connection status (that is, whether it is on a 3G
or 4G connection or unable to connect to either).
Refer to the following tables for more information:
These measurements are negative numbers, meaning the smaller negative values denote a larger
number. So, for example, a -85 is a better signal than -90.
Note For more information regarding how signal strength is calculated and subsequently displayed via
the LED indicators, see Signal bars explained.
Signal bars explained
The LTE signal status bars are calculated using various algorithms based on the network type it is
connected to. For 4G LTE, the RSRP, SNR, and RSSI values are all factored in to determine the
reported signal strength bars. For 3G networks (including HSPA+) and 2G networks, the signal
strength bars are determined by the RSSI value.
4G LTE algorithm
Determine RSRP, SNR, and RSSI values separately, using the following
RSRP > -85, rsrp_bars=5
-95 < RSRP <= -85, rsrp_bars=4
-105 < RSRP <= -95, rsrp_bars=3
-115 < RSRP <= -105, rsrp_bars=2
-199 < RSRP <= -115, if we're connected to the cellular network, rsrp_bars=1,
if not rsrp_bars=0
If RSRP <= -199, then use RSSI as the value and run it through the same algorithm described above.
SNR >= 13, snr_bars=5
4.5 <= SNR < 13, snr_bars=4
1 <= SNR < 4, snr_bars=3
-3 < SNR < 1, snr_bars=2
-99 < SNR <= -3, if we're connected to the cellular network, snr_bars=1, if not
snr_bars=0