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Kramer SWT3-41-U-T User Manual

4x1 usb switcher transmitter, usb receivers, 1:2 cat cable splitter
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USER MANUAL
MODELS:
SWT3-41-U-T, EXT3-UE-R, EXT3-U-R,
ACC3-12-SP
4x1 USB Switcher Transmitter, USB
Receivers, 1:2 CAT Cable Splitter
P/N: 2900-301682 Rev 1
www.kramerav.com

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Summary of Contents for Kramer SWT3-41-U-T

  • Page 1 USER MANUAL MODELS: SWT3-41-U-T, EXT3-UE-R, EXT3-U-R, ACC3-12-SP 4x1 USB Switcher Transmitter, USB Receivers, 1:2 CAT Cable Splitter P/N: 2900-301682 Rev 1 www.kramerav.com...

  • Page 2: Table Of Contents

    Typical Applications Defining SWT3-41-U-T 4x1 USB Switcher Defining SWT3-41-U-T Defining EXT3-UE-R Defining EXT3-U-R Defining ACC3-12-SP Mounting SWT3-41-U-T, EXT3-UE-R, EXT3-U-R, and ACC3-12-SP Mounting SWT3-41-U-T Mounting EXT3-UE-R Mounting EXT3-U-R Mounting ACC3-12-SP Connecting SWT3-41-U-T Connecting the Output to a Balanced/Unbalanced Stereo Audio Acceptor...

  • Page 3: Introduction

    Kramer Electronics Ltd. Introduction Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been providing a world of unique, creative, and affordable solutions to the vast range of problems that confront the video, audio, presentation, and broadcasting professional on a daily basis. In recent years, we...

  • Page 4: Overview

    European Advanced Recycling Network (EARN) and will cover any costs of treatment, recycling and recovery of waste Kramer Electronics branded equipment on arrival at the EARN facility. For details of Kramer’s recycling arrangements in your particular country go to our recycling pages at www.kramerav.com/social-responsibility/environment.
  • Page 5 RS−232 or I/O. Eliminating the need for an external control gateway, this feature reduces installation complexity and costs, to enable easy integration with control systems, such as Kramer Control. • Secured Connectivity — Standard IT–grade 802.1x authentication for secured IT LAN connectivity operation.
  • Page 6 Kramer Electronics Ltd. CAT−extended control signals of the connected USB peripherals, such as PTZ cameras and soundbars by a remote LAN−connected control system (for example, Kramer Control). • Flexible USB Connectivity – Wide Variety of USB peripheral and dual−role devices can...

  • Page 7: Typical Applications

    • Upgrade AV meeting rooms to hybrid meeting rooms. • Any solution with flexible connection of multiple USB hosts and local or remote room peripherals. Controlling your SWT3-41-U-T Control your SWT3-41-U-T directly via the front panel push buttons, or: •...

  • Page 8: Defining Swt3-41-U-T 4X1 Usb Switcher

    Switcher This section defines SWT3-41-U-T, EXT3-UE-R, EXT3-U-R and ACC3-12-SP. Defining SWT3-41-U-T Figure 1: SWT3-41-U-T 4x1 USB Switcher Front Panel kjkj Feature Function USB DEVICE USB A 3.1 Connect to the USB local peripheral devices (for example, a USB camera, Ports a soundbar, microphone and so on).
  • Page 9 Kramer Electronics Ltd. Figure 2: SWT3-41-U-T 4x1 USB Switcher Rear Panel Feature Function HOST USB B 3.1 Connectors (3 Connect to a USB host (for example, a room PC) to communicate with the to 4) USB devices (for example, a PTZ camera) connected to USB device ports on this device and connect to the LAN.

  • Page 10: Defining Ext3-Ue-R

    • One of the USB CAT OUT PoC ports on the SWT3-41-U-T CAT A or CAT B on the ACC3-12-SP 1:2 CAT cable splitter which can be connected to the SWT3-41-U-T. AUDIO OUTPUT 5-pin Terminal Block Connect to a balanced analog stereo audio line acceptor.

  • Page 11: Defining Ext3-U-R

    Press to toggle between a blank screen (blue or black) and the program display. The BLANK button can be programmed to mute the audio signal at the same time. 12V DC Power Connect to the power adapter. Connector SWT3-41-U-T – Defining SWT3-41-U-T 4x1 USB Switcher...

  • Page 12: Defining Acc3-12-Sp

    Front/Rear Panel Feature Function CAT A+B RJ-45 Port Connect to a compatible CAT transmitter (for example an SWT3-41-U-T) so send combined signals over the A+B port. CAT A RJ-45 Port Connect to a compatible CAT receiver (for example an EXT3-UE-R, EXT3-U-R).

  • Page 13: Mounting Swt3-41-U-T, Ext3-Ue-R, Ext3-U-R, And Acc3-12-Sp

    EXT3-UE-R, EXT3-U-R, and ACC3-12-SP Mounting SWT3-41-U-T This section provides instructions for mounting SWT3-41-U-T. Before installing, verify that the environment is within the recommended range: • Operation temperature – 0 to 40C (32 to 104F). • Storage temperature – -40 to +70C (-40 to +158F).

  • Page 14: Mounting Ext3-Ue-R

    Attach the rubber feet and place the unit on a flat surface. • Fasten a bracket (included) on each side of the unit and attach it to a flat surface. For more information go to www.kramerav.com/downloads/EXT3-UE-Rr SWT3-41-U-T – Mounting SWT3-41-U-T, EXT3-UE-R, EXT3-U-R, and ACC3-12-SP...

  • Page 15: Mounting Ext3-U-R

    Attach the rubber feet and place the unit on a flat surface. • Fasten a bracket (included) on each side of the unit and attach it to a flat surface. For more information go to www.kramerav.com/downloads/EXT3-U-R. SWT3-41-U-T – Mounting SWT3-41-U-T, EXT3-UE-R, EXT3-U-R, and ACC3-12-SP...

  • Page 16: Mounting Acc3-12-Sp

    Attach the rubber feet and place the unit on a flat surface. • Fasten a bracket (included) on each side of the unit and attach it to a flat surface. For more information go to www.kramerav.com/downloads/ACC3-12-SP. SWT3-41-U-T – Mounting SWT3-41-U-T, EXT3-UE-R, EXT3-U-R, and ACC3-12-SP...

  • Page 17: Connecting Swt3-41-U-T

    Kramer Electronics Ltd. Connecting SWT3-41-U-T Always switch off the power to each device before connecting it to your SWT3-41-U-T. After connecting your SWT3-41-U-T, connect its power and then switch on the power to each device. Figure 6: Connecting to the SWT3-41-U-T...
  • Page 18 GPIO acceptor (for example, I/O 2 to occupancy detector) or a remote button (for example, a host selector). 5. Control the devices: ▪ On the SWT3-41-U-T, connect a controller (for example, SL-240C room controller) to PoE◄ the LAN...

  • Page 19: Connecting The Output To A Balanced/Unbalanced Stereo Audio Acceptor

    The following are the pinouts for connecting a balanced or unbalanced stereo audio source to the balanced input: Figure 9: Connecting a Balanced Stereo Audio Figure 10: Connecting an Unbalanced Stereo Audio Source to the Balanced Input Source to the Balanced Input SWT3-41-U-T – Connecting SWT3-41-U-T...

  • Page 20: Connecting To Devices Via Rs-232

    You can connect to SWT3-41-U-T/ EXT3-UE-R/ EXT3-U-R via an RS-232 connection using, for example, a PC. SWT3-41-U-T, for example, features an RS-232 3-pin terminal block connector allowing the RS-232 to control SWT3-41-U-T. Connect the RS-232 terminal block on the rear panel of SWT3-41-U-T...

  • Page 21: Operating And Controlling Swt3-41-U-T

    Auto – Auto Switching selection is performed in either Last Connected or Priority policy. In Last Connected policy, if the signal on the current USB host is lost, SWT3-41-U-T automatically selects the last connected USB host. The auto-switching delay depends on the configurable signal-lost timeout.
  • Page 22 I/O control gateway: ▪ RS-232 commands, to control devices connected to SWT3-41-U-T, EXT3-UE-R and EXT3-U-R RS-232 control ports. The built-in control gateway sends the serial control commands (converted from the client received IP messages) to the locally and/or remotely connected serially controlled devices and distributes their received responses to all connected clients.
  • Page 23 SWT3-41-U-T built-in control gateway connection for control of its local and remote EXT3-UE-R control ports. The Kramer Control controller is connected to the switcher via LAN, sends IP commands to the switcher control gateway over the LAN connection, to send control messages to, and receive control responses from: •...

  • Page 24: Using Front Panel Buttons

    (see Resetting and Restarting Device on page 34). Operating via Ethernet You can connect to SWT3-41-U-T via Ethernet using either of the following methods: • Directly to the PC using a crossover cable (see Connecting Ethernet Port Directly to a on page 22).
  • Page 25 (TCP/IPv4) depending on the requirements of your IT system. 5. Click Properties. The Internet Protocol Properties window relevant to your IT system appears as shown in Figure 13 Figure Figure 13: Internet Protocol Version 4 Properties Window SWT3-41-U-T – Operating and Controlling SWT3-41-U-T...
  • Page 26 You can connect the Ethernet port of SWT3-41-U-T to the Ethernet port on a network switch or router using a straight-through cable with RJ-45 connectors. Configuring Ethernet Port You can set the Ethernet parameters via the embedded Web pages. SWT3-41-U-T – Operating and Controlling SWT3-41-U-T...
  • Page 27 When no DHCP server is detected, a fallback static IP address of 192.168.1.39, and 255.255.255.0 subnet mask (class C), is assigned until an IP address is acquired via the DHCP server. For more information, refer to Product Page Technical Note in www.kramerav.com/product/SWT3-41-U-T SWT3-41-U-T – Operating and Controlling SWT3-41-U-T...

  • Page 28: Using Embedded Web Pages

    Kramer Electronics Ltd. Using Embedded Web Pages SWT3-41-U-T enables you to configure settings via Ethernet using built-in, user-friendly web pages. The Web pages are accessed using a Web browser and an Ethernet connection. You can also configure SWT3-41-U-T via Protocol 3000 commands (see...
  • Page 29 Kramer Electronics Ltd. 2. Enter the Username (default = Admin) and Password (default = Admin) and click Sign in. The default web page appears. Figure 17: Default Landing Page SWT3-41-U-T – Using Embedded Web Pages...
  • Page 30 • Operation on page 29. • Settings on page 30. • Diagnostics on page 50. • Administration on page 50. • Viewing the About Page on page 56. SWT3-41-U-T – Using Embedded Web Pages...

  • Page 31: Operation

    Click a Host/Devices cross-point. A green light button indicates a connected source. A host is routed to the devices. Muting the Extended Audio Signal: This feature only works when SWT3-41-U-T is connected to a receiver(s). SWT3-41-U-T – Using Embedded Web Pages...

  • Page 32: Settings

    2. Next to the Selection Mode drop-down box, select the auto switching policy: Manual, Last Connected or Priority. USB auto-switching policy is set. To change USB Host Input Priorities: 1. Go to the Auto switching tab. 2. Next to the Selection Mode drop-down box, select Priority. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 33 Device Profile and Maintenance on page 32. • Changing Device Name on page 32. • Upgrading Firmware on page 33. • Resetting and Restarting Device on page 34. • Identifying Your Device on page 35. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 34 To change the device name: 1. Go to the Device > General tab. Figure 22: Device > General Page 2. Under General Preferences, change the device name and click SAVE. The device name is changed. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 35 Any device connected to the CAT B Port will not function while this feature is active. To configure Dual CAT A+B Mode 1. Go to the Device > General tab (Figure 22). 2. Next to Combine Dual CAT A+B, press to toggle On. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 36 The stored file can then be imported to the same or different SWT3-41-U-T device to load the recorded settings, for configuration backup and/or solution-replication purposes. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 37 To identify the device using a supporting discovery system: 1. Go to the Device > General page (Figure 22). 2. Under Global System Settings, click FLAG ME. NET LED flashes. The device is identified by the discovery system. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 38 Auto-disconnecting a USB Device on Inactive Host When a host becomes inactive, you can automatically disconnect one or multiple USB devices. To define auto-disconnection: 1. Go to the Device > General page (Figure 22). 2. Select the USB tab. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 39 Kramer Electronics Ltd. Figure 26: USB Page – USB Device Auto-Disconnection 3. For each USB Device Port, select the Local device ports on the SWT3-41-U-T; or select CAT-A / CAT-B for the devices located on the paired receivers. ▪ set the auto disconnection status to On or Off. You can also Select All Off or All On to set all device ports to off or on, respectively.
  • Page 40 42. • Configuring a Digital Output I/O Type on page 44. • Configuring Remote Receiver I/O (GPIO) Ports on page 46. • Defining and Testing Commands via Action Editor on page 47. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 41 Controlling Remote Devices Connected to the Receiver on page 42. Controlling the SWT3-41-U-T To set the RS-232 port to control the device: 1. Go to the Control Gateway tab. The Serial Ports tab appears. Figure 28: RS-232 for Device Control SWT3-41-U-T – Using Embedded Web Pages...
  • Page 42 3. Define the external device RS-232 settings (Parity, Data Bits, Baud Rate and Stop Bits). 4. Click Save. The Advanced Settings tab appears. 5. Select either UDP or TCP port. 6. Click SAVE. RS-232 port controls locally connected external device via gateway. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 43 3. Define the RS-232 communication settings (Parity, Data Bits, Baud Rate and Stop Bits). 4. Select link of paired receiver (CAT Link A / B). 5. Click SAVE. RS-232 port extension with bi-directional communication is enabled. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 44 The 2 local I/O ports can control devices such as sensors, door locks, remote contact-closure buttons, audio volume and lighting control devices and can be configured via the webpages. To enable I/O operations, Remote Button must be set to Off. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 45 (upon passing Min threshold from High state) port states according to the user defined voltage threshold levels. To configure a digital input I/O type: 1. On the IO tab, select Digital Input next to I/O Type. The Digital Input options appear. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 46 To configure a digital output I/O type: 1. On the IO tab, select Digital Output next to I/O type. A warning message appears. Figure 33: Digital Output Warning 2. Make sure to follow the instructions in this warning. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 47 When selectin the Analog Input I/O type, the port is triggered by an external analog device, such as a volume control device. The trigger is activated once when the detected voltage is within the 0 to 30V DC voltage range. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 48 SWT3-41- U-T webpages. To configure an I/O port: 1. In the Navigation pane, click Control Gateway. The Serial Ports tab in the Device Settings page appears. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 49 Use action editor to create and test control commands via RS-232 control interfaces. You can create up to 5 commands. To add an action: 1. In the navigation pane, select Control Gateway. The Serial Ports tab opens. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 50 2. Select the IO tab. The IO tab appears. 3. Press to toggle Remote Button to On. 4. Configure defined control actions, for button on/off states, using the State ON, State OFF drop-down boxes. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 51 Button default operation mode is latching. For momentary mode, check the Momentary checkbox. Figure 38: I/O ports settings tab – Configuring Remote Buttons 5. Click SAVE. A control actions remote button can now be remotely operated. SWT3-41-U-T – Using Embedded Web Pages...

  • Page 52: Diagnostics

    Figure 39: Device Status Page 3. View device status. Device status can be viewed. Administration Setting Security Properties This section details the following actions: • Changing Security Status on page 51. • Defining 802.1X Authentication on page 52. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 53 Figure 40: Security – Security Tab 3. Set SECURITY STATUS to Off. The Security Status window appears. Figure 41: Security Status Message 4. Enter the current password. 5. Click OK. Security status is set to Off. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 54 Figure 42: Device Settings – Changing the Password 4. Enter the new password and confirmation password and click SAVE. The password is changed. Defining 802.1X Authentication 802.1x security standard supports IT networking authentication based on LAN port and MAC address. SWT3-41-U-T – Using Embedded Web Pages...
  • Page 55 4. When set to ON check one standard authentication method to set its security attributes. ▪ PEAP-MSCHAP V2 (Figure 44) – Enter: Username - up to 24 alphanumeric characters, including “_” and “-“ characters  within the username, and  Password - up to 24 ASCII characters SWT3-41-U-T – Using Embedded Web Pages...
  • Page 56 EAP-TLS (Figure 46) – To submit certificate from the server for authentication: ▪ Enter Username, ▪ Click to upload the certificates and keys, ▪ Enter the private key password (assigned by IT administrator), ▪ Set Server Certificate On SWT3-41-U-T – Using Embedded Web Pages...
  • Page 57 Kramer Electronics Ltd. Figure 47: EAP-TLS – Certificates and Password 5. Click APPLY. 802.1x authentication security is configured. SWT3-41-U-T – Using Embedded Web Pages...

  • Page 58: Viewing The About Page

    Kramer Electronics Ltd. Viewing the About Page View the firmware version and Kramer Electronics Ltd details in the About page. Figure 48: About Page SWT3-41-U-T – Using Embedded Web Pages...

  • Page 59: Upgrading Firmware

    The latest version of K-UPLOAD and installation instructions can be downloaded from our website at: www.kramerav.com/support/product_downloads.asp. Note that in order to use the micro USB port, you need to install the Kramer USB driver, available at: www.kramerav.com/support/product_downloads.asp. SWT3-41-U-T – Upgrading Firmware...

  • Page 60: Technical Specifications

    2.0 and 1.1 USB Controls Front Panel Input selector buttons, A+B CAT, Net and Status LED indicators. Extension Line Reach Up to 100m (330ft) when using Kramer cables Extended Ethernet Data Rate Up to 100Mbps Extended RS-232 Baud Rate 9600...

  • Page 61: Ext3-Ue-R

    CAT link 1 RS–232 On 3–pin terminal block 2 GPIO On 2–pin terminal block Extension Line Reach Up to 100m (330ft) when using Kramer cables Extended USB Data Rate Up to 480Mbps Integrated USB Hubs Transmitted Data Bandwidth...

  • Page 62: Ext3-U-R

    PoC-powered: 0.5A Max Current Per Port PSU-powered: 2A PoC-powered: 0.5A Indication LEDs Front Panel LINK LED and ON LED Power Consumption 12V DC, 1500mA Source 12V DC, 2A Specifications are subject to change without notice at www.kramerav.com SWT3-41-U-T – Technical Specifications...

  • Page 63: Acc3-12-Sp

    Shipping Dimensions (W, D, H) 49cm x 18.6 cm x 58.8cm (19” x 7.32” x 23.14”) Net Weight 0.104 (0.22lbs) Shipping Weight 0.214 kg (0.47lbs) Accessories None Specifications are subject to change without notice at www.kramerav.com SWT3-41-U-T – Technical Specifications...

  • Page 64: Default Communication Parameters

    To reset the IP settings to the factory reset values go to: Menu->Setup -> Factory Reset-> press Enter to confirm Fallback IP Address: 192.168.1.39 Fallback Subnet mask: 255.255.255.0 Fallback gateway: 192.168.0.1 Default username: Admin Default password: Admin Full Factory Reset Send FACTORY command then RESET Embedded webpages Go to: Device>General and click FACTORY RESET SWT3-41-U-T – Technical Specifications...

  • Page 65: Protocol 3000

    Kramer Electronics Ltd. Protocol 3000 Kramer devices can be operated using Kramer Protocol 3000 commands sent via serial or Ethernet ports. Understanding Protocol 3000 Protocol 3000 commands are a sequence of ASCII letters, structured according to the following. • Command format:...

  • Page 66: Protocol 3000 Commands

    #CAT-LINK-DUAL?port_id<CR> 1 – CAT port A #CAT-LINK-DUAL1<CR> FEEDBACK 2 – CAT port B ~nn@CAT-LINK-DUAL?port_id, status <CR> status - port_id: 1 (currently, 0 – disable (not activated) the only available 1 – enable (activated) port) SWT3-41-U-T – Protocol 3000...
  • Page 67 #FACTORY<CR> FEEDBACK This command ~nn@FACTORYok<CR><LF> deletes all user data from the device. The deletion can take some time. Your device may require powering off and powering on for the changes to take effect. SWT3-41-U-T – Protocol 3000...
  • Page 68 See note in description. FEEDBACK response is 2. – The actual step currentstep #GPIO-STEP2,38<CR> ~nn@GPIO-STEPgpio_id,step_id,currentstep<CR><LF> depending on the measured voltage In analog mode the response is 1 to 100. In other modes an error is returned. SWT3-41-U-T – Protocol 3000...
  • Page 69 – the number of last LOG-TAIL? last_event Get the list of the N COMMAND Get the protocol permission events to view <N = 1,2,3…> last events. #LOG-TAIL?last_event<CR> level to Admin: #LOG-TAIL?8<CR> FEEDBACK ~nn@LOG-TAILlast_event,ok,<list><CR><LF> SWT3-41-U-T – Protocol 3000...
  • Page 70 #NAMEroom-442<CR> FEEDBACK The machine name ~nn@NAMEmachine_name<CR><LF> is not the same as the model name. The machine name is used to identify a specific machine or a network in use (with DNS feature on). SWT3-41-U-T – Protocol 3000...
  • Page 71 – Format: xxx.xxx.xxx.xxx NET-GATE? Get gateway IP. COMMAND Get the gateway IP address: A network gateway #NET-GATE?<CR> #NET-GATE?<CR> connects the device FEEDBACK via another network ~nn@NET-GATEip_address<CR><LF> and maybe over the Internet. Be aware of security problems. SWT3-41-U-T – Protocol 3000...
  • Page 72 #PRG- #PRG-ACTION?commandNum<CR> ACTION?0,3,1,0<CR> 1 – Output FEEDBACK Programs matrix – External programmable button type ~nn@PRG-ACTIONcommandNum,type,name,command<CR><LF> action as a response for external event name – Bitmap representing (programmable button – External programmable command pressed). button ID SWT3-41-U-T – Protocol 3000...
  • Page 73 Set the priority to first HDMI 1 – Video 2, USB-C 1 second and #PRIORITYlayer_type,priority_1,priority_2,priority_3 HDMI 3 third: <CR> – Priority of inputs (1-2) priority #PRIORITY1,2,1,3<CR> 1 – USB-C 1 FEEDBACK 2 – HDMI 2 ~nn@PRIORITYlayer_type,priority_1,priority_2,priorit 3 – HDMI 3 y_3<CR><LF> SWT3-41-U-T – Protocol 3000...
  • Page 74 The device does not data – Format: hh:mm:ss where validate the day of hh = hours week from the date. mm = minutes ss = seconds Time format - 24 hours. Date format - Day, Month, Year. SWT3-41-U-T – Protocol 3000...
  • Page 75 1 – USB Device 1 DISCONNECT- disconnection mode.. mode: #USBA-DISCONNECT-MODE?USBDevice<CR> MODE? #USBA-DISCONNECT- 2 – USB Device 2 FEEDBACK MODE?1<CR> 3 – USB Device 3 ~nn@USBA-DISCONNECT-MODEmode<CR><LF> 4 – USB Device 4 – On/Off mode 0 – Off 1 – On SWT3-41-U-T – Protocol 3000...

  • Page 76: Result And Error Codes

    In case of an error, the device responds with an error message. The error message syntax: • ~NN@ERR XXX<CR><LF> – when general error, no specific command • ~NN@CMD ERR XXX<CR><LF> – for specific command • NN – machine number of device, default = 01 • XXX – error code SWT3-41-U-T – Protocol 3000...
  • Page 77 (Reserved) ERR_RESERVED_8 (Reserved) ERR_RESERVED_9 (Reserved) ERR_RESERVED_10 (Reserved) ERR_RESERVED_11 (Reserved) ERR_RESERVED_12 (Reserved) ERR_EDID_CORRUPTED EDID corrupted ERR_NON_LISTED Device specific errors File has the same CRC – not changed ERR_SAME_CRC ERR_WRONG_MODE Wrong operation mode ERR_NOT_CONFIGURED Device/chip was not initialized SWT3-41-U-T – Protocol 3000...
  • Page 78 This limited warranty gives you specific legal rights, and you may have other rights which vary from country to country or state to state. This limited warranty is void if (i) the label bearing the serial number of this product has been removed or defaced, (ii) the product is not distributed by Kramer Electronics or (iii) this product is not purchased from an authorized Kramer Electronics reseller.
  • Page 79 SAFETY WARNING Disconnect the unit from the power supply before opening and servicing For the latest information on our products and a list of Kramer distributors, visit our website where updates to this user manual may be found. We welcome your questions, comments, and feedback.

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