DISCONTINUED PRODUCT

(E) Warning / (F) Avertissement

When working with our hardware components, please read and observe all of the instructions provided in the "General Safety Information for Lawo Equipment" booklet delivered with your devices.

Click on the link below to read or download the booklet as a pdf.

Before cleaning VSM hardware components, please read and observe all of the following instructions.

Before cleaning your Lawo devices, please read and observe all of the following instructions.

(E) ATTENTION

DO NOT spill liquids into any system components!

DO NOT clean the front panels or operational surfaces with sharp instruments.

(F) ATTENTION

NE PAS renverser de liquides dans les composants du système!

NE PAS nettoyer les panneaux avant ou les surfaces opérationnelles avec des instruments pointus.

(E) IMPORTANT NOTE

General Cleaning / Disinfecting Requirements

Lawo hardware products are made from a variety of different materials, and each material might have specific cleaning requirements. Therefore, a general allowance for the disinfection of product surfaces with disinfectants containing alcohol cannot be given.

Our front panels and operational surfaces are not entirely approved for treatment with chemical cleaning agents and disinfectants. Component surfaces, buttons and electronics can be permanently damaged by treatment with such agents and the lifespan can be dramatically shortened. Please note that some substances can lead to discoloration of surfaces.

Lawo is not responsible for damage caused by the unauthorized use of disinfectants on our products and surfaces. Damages caused by unspecified treatment of modules and components are not covered by regular or extended warranties or SLA regulations.

This is a general instruction and recommendation for cleaning that applies to all Lawo products:

Before cleaning the device, unplug all external power sources.
Clean the device with a soft cloth, dipped lightly in warm to hot soapy water.
Do not use any liquid cleaning agents or spray cleaners that may contain flammable materials.
Do not get moisture into any openings.
Do not use aerosol sprays, bleaches, or abrasives.
Do not spray cleaners directly onto the item.

The above information and our technical application advice are given to the best of our knowledge.

Introduction

The vsm LTC Time Sync is an interface between a longitudinal time code signal and a USB port. The LTC signal can be used to provide a PC or server with timecode synchronisation through the LTC. The LTC Time Sync unit comes with an additional video-sync input, which is currently not used to synchronize vsmStudio server with vTimeSync. The device accepts all LTC signals according SMPTE 12M (-1/-2)/EBU timecode standard. The interface supports PAL/NTSC-Standard, but no NTSC-Drop-Frame-Mode.

Features:

2 LTC time code input via SUB-D15 female for PAL/NTSC-Standard.
2 Serial RS232 port "output" via SUB-D9 female for redundancy application only.
2 USB ports via USB device connector for Interface with vTimeSync on vsm server.
2 video sync input (black burst) 75 Ohm via BNC.

Product Overview

vsmLTC Time Sync Unit Dual

	Number of ports	2 x LTC longitudinal timecode audio signal according to SMPTE 12M (-1/-2)
	Communication port	2 x USB
	Dimension	483mm x 43,7mm x 125,4mm (WxHxD):1RU
	Weight	approx. 1,4KG
	Power-Consumption	<10W
	Working-Environment	0°C-60°C non-condensing humidity

Operating Conditions

This device is built to be used in a non-condensing environment within a temperature range of 0-50°C. Under or overshooting this working temperature range may cause fast aging of components or even malfunction of the whole device.

Spillage of any liquids e.g. coffee, coke, water... onto/into the device may cause damage.

The storage temperature of the device must be within -20°C to 60°C with a maximum of 75% non-condensing relative humidity at 60°C @ 0VDC supply-voltage.

DO NOT throw, drop or bend the unit and make sure that there is no strong permanent mechanical pressure on any side of the housing at any time.

Before installing or using this device, always read and observe the Important Safety Instructions.

Preparing for Operation

All servers running vTimeSync (the synchronisation application for VSM Studio) will be shipped with pre-installed and pre-configured USB driver. If you need to install the USB driver please download the latest version here or contact our support team.

First properly install the USB driver and connect the LTC Time Sync unit to the server. If Windows has detected the LTC Time Sync unit go to "Device Manager/Ports (COM & LTP)/COM port number (LTC IF)". Find the Tab "Port Settings" and go to Advanced Settings. Now configure the LTC Time Sync unit USB port as the following, press "OK" and restart Windows if needed.

Now connect the LTC signal to the device. After ca. 30 seconds the device will show at the front status LEDs the LTC online state.
Open the "Gui.html" file in the vTimeSync installation folder or use this link to setup the COM Port for vTimeSync as following:

If the "Signal Source" LED turns green and the "Proxy Version" shows a valid Firmware Version, vTimeSync has established a valid connection to the LTC Time Sync unit. For further information about vTimeSync read the corresponding manual.

Technical Specifications

Status LEDs

Legend for the front status LED

Nr	Color	Meaning
L1	Green	Power/Ready
L2	Yellow	Physical connection to PC established
L3	Green	RTC available
L4	Yellow	Backup source operation
L5	Green	V-Sync Online
L6	Green	LTC Online
L7	Red	V-Sync Error
L8	Red	LTC Error

Legend for the rear status LED's


1+2	Green + Green	Power good (internal regulator)
3+4	Green + Green	RX/TX indicator for USB port
5+6	Green + Green	RX/TX indicator for RS232 port
7+8	Red + Green	Video sync reference status, red: fail green: ok
9+10	Red + Green	LTC status information red: fail green: ok

Connectors

Power Connector

Connector for DC-supply: 4-Pin connector (MC 1,5/ 4-STF-3,81) locked with two screws. The connector is already mounted on the power-supply delivered with each vsmLTC interface.

Power Supply

Product	Description	Item Number
LBP-PSU (Phoenix-Plug)	12V DC power supply, 4-Pin-Phoenix-Type	799-0089-000

(EN) Warning

Important: It is understood that only the external Power-Supply-Unit (PSU) provided by Lawo, and shipped with the specific vsm device, is used for operating the product.

To feed the device via the DC input it is mandatory to use a 12V power source that is certified as “SELV/LPS” (if certified according to 60950) or as “ES1/PS2(LPS)” (if certified according to 62368) “NEC Class 2” 12V power source. The UL mark is valid only with use of UL certified PSUs of categories QQGQ (UL 60950) or QQJQ (UL 62368). The supplied Lawo 12V PSU is compliant to these requirements.

(F) Avertissement

Important: Il est entendu que seul le bloc d'alimentation externe fourni par Lawo, et livré avec le dispositif vsm spécifique, est utilisé pour faire fonctionner le produit.

Pour alimenter l'appareil via l'entrée DC, il est obligatoire d'utiliser une source d'alimentation 12V conforme aux exigences «SELV / LPS» (si certifiée selon la norme IEC 60950) ou «ES1 / PS2 (LPS)» (si certifiée selon la norme IEC 62368) Source d'alimentation 12V “NEC Classe 2”. La marque UL est seulement valable quand l'alimentation elle-même est certifiée par UL dans les catégories QQGQ (norme UL 60950) ou QQJQ (norme UL 62368). Le bloc d’alimentation Lawo 12V fourni avec l’équipement est conforme à ces exigences.

LTC

Sub-D15 female

The output-impedance of the LTC-generator should be as small as possible; the level is preferred to be adjustable. The LTC-interface input-level must be within SMPTE-restriction 12M:

SMPTE 12M-1995 < 50 W/1 - 2 Vpp (max. 0.5 - 4.5 Vpp), following EBU Tech. 3097-E < 30 W/0.5 - 4.5 Vpp

Pin	Signal	Comments
1	NC	-
2	NC	-
3	LTC-A	LTC data + (HOT)
4	LTC-B	LTC data - (COLD)
5	GND*	AC-coupled ground (GND)
6	NC	-
7	NC	-
8	NC	-
9	NC	-
10	NC	-
11	NC	-
12	NC	-
13	NC	-
14	NC	-
15	NC	-

USB

USB device
For interconnection with vTimeSync use enclosed "A" to "B" type USB cord only. A maximum USB-cable-length of 2.0m (6.5 feet) is permitted.

Pin	Signal	Comments
1	VCC	+ 5V
2	D-	Data -
3	D+	Data +
4	GND	GND

Serial Redundancy Interface

Sub-D9 male RS232 (EIA RS232D 2.1.7)
For redundancy purposes of dual LTC-interface only. Only use provided redundancy-cable delivered with redundant unit.

Pin	Signal	Comments
1	NC	-
2	RxD	Receive Data input
3	TxD	Transmit Data output
4	NC	-
5	GND	Ground (shield)
6	NC	-
7	NC	-
8	NC	-
9	NC	-

REF Input/Blackburst

BNC 75 Ohm (PAL/NTSC/SECAM)
The video-sync-input (REF-input) is an optional input only and is currently not used for time synchronisation.
If this optional REF-Input is used, make sure to do proper wiring. Use video-cable (RG59) for interconnection only.
Avoid long cabling-traces.

Pin	Signal	Comments
1	Composite	Positive video signal
2	Drain	Shield (GND)