Trilogy Communications Mentor CX User Manual

Automatic changeover
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Mentor CX
Mentor Automatic Changeover
User Guide
ISSUE 1.1
TRILOGY COMMUNICATIONS LIMITED
26 Focus Way
Andover
Hampshire
SP10 5NY
United Kingdom
Telephone.
+44 (0) 1264 384000
www.trilogycomms.com

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  • Page 1 Mentor CX Mentor Automatic Changeover User Guide ISSUE 1.1 TRILOGY COMMUNICATIONS LIMITED 26 Focus Way Andover Hampshire SP10 5NY United Kingdom Telephone. +44 (0) 1264 384000 www.trilogycomms.com...
  • Page 2 Mentor CX The Copyright of the information and drawings in this document is the property of Trilogy Communications Limited of Andover, Hampshire and is neither to be reproduced in whole or in part, nor disclosed to a third party, without the prior written consent of Trilogy Communications Limited.
  • Page 3: Table Of Contents

    Mentor CX CONTENTS APPLICATION ....................... 5 1.1 I ..........................5 NTRODUCTION 1.2 V .................. 5 ECTOR ROWSER ASED ANAGEMENT 1.3 R ........................5 ELATED OCUMENTS 1.4 A ....................6 VAILABLE EATURES AND PTIONS INSTALLATION ......................7 2.1 U ............................ 7 NPACKING 2.2 R...
  • Page 4 Mentor CX MAIN CONTROLLER BOARD ..................30 5.1 I ..........................30 NTRODUCTION 5.1.1 SDI Channels (1 - 2) ......................30 5.1.2 Analogue Channels (3 – 6) ....................30 5.1.3 AES (balanced via D-type connectors) ................31 5.1.4 LTC (balanced via D-type connectors) ................31 OPTION: 331-20-00 UNIVERSAL OPTION MODULE .............
  • Page 5: Application

    Reference Generator. The Mentor product family is suitable for any digital or mixed format environment where a high quality digital SPG is required. Mentor CX provides a manual or automatic changeover between a pair of Mentor RG generators, providing the maximum possible security for on-air applications.
  • Page 6: Available Features And Options

    EATURES AND PTIONS Six option card slots are available. The Mentor CX auto detects which type of option card is fitted and presents the user with appropriate on-screen options within Vector. A number of additional hardware options are available for the Mentor CX. At the time of writing in...
  • Page 7: Installation

    Carefully place the unit in your rack and firmly attach it to the rack using four bolts. IMPORTANT: Mentor CX has air intakes on the front of the chassis and fan assisted exhaust vents on the rear of the chassis. Ensure that these have an unobstructed air flow, otherwise the unit may overheat.
  • Page 8: Mains Connection And Fusing

    (see specification, section 9.3). The standard Mentor CX is fitted with a single mains power supply unit (PSU), with an option to fit a second PSU. Each PSU has its own, dedicated, IEC mains plug on the rear of the Mentor CX. These should be wired according to the instructions provided with a mating mains socket using suitable cable.
  • Page 9: Rear Panel Connections

    Mentor CX 2.6 R ANEL ONNECTIONS Page 9 of 43 Trilogy Communications...
  • Page 10: Channel Input And Output

    Mentor RG. This may be combined with system health data from Mentor CX to provide an overall fault loop for the associated hardware (2 x Mentor RG plus 1 x Mentor CX). See section 2.10. Page 10 of 43...
  • Page 11: Aes And Ltc Out

    AES output connector as shown above. Electrically, the opto-isolated output is identical to the GPI Outputs described in section 2.11. A fault condition on one or more of the items listed causes the Mentor CX fault loop to open. •...
  • Page 12: Gpi In And Out

    GPI input 1 is used to switch between A and B inputs when the unit is configured to use GPI to cause the changeover. A floating input selects “A” inputs: closure to ground selects “B” inputs. GPI input 2 is reserved for future use. Connecting to GPI Inputs Mentor CX GPI inputs Mentor CX comprise single ended ground-to-operate inputs.
  • Page 13: Ethernet

    2.12 E THERNET The Mentor CX is equipped with a 10/100 Base-T Ethernet port. This port may be configured for either dynamic (DHCP) address mode, or static address mode. In most instances, we recommend the static mode. These options are located in the Admin menu. The Mentor CX should be connected to the network in the same way as any other networked device (e.g.
  • Page 14: Operation

    3.1 I NTRODUCTION There are three basic principles which are key to operation of the Mentor CX. 1. An error or fault condition on a single channel causes, without exception, a total changeover from the primary to secondary reference generator. Channels may be included or excluded from the decision making using front panel controls or Vector management.
  • Page 15: Front Panel

    Mentor CX 3.2 F RONT ANEL Page 15 of 43 Trilogy Communications...
  • Page 16: Controls

    Mentor CX 3.3 C ONTROLS Panel controls are only active when the panel is unlocked. Control actions related to configuration mode are shown in italics. Button Indicator Panel Lock Momentary press alternates between locked and On = locked unlocked. When unlocked, if there is no user...
  • Page 17: Indicators

    Red = Generator not synchronised. • Input status There are individual LED indicators for each input, 2 per channel. They also have a secondary purpose when Mentor CX is in configuration mode. Normal mode Configuration Mode Green = input OK...
  • Page 18: Using Vector | Web Browser Based Management

    • The IP address will return to factory default of 192.168.1.252. Connect the Ethernet port on the Mentor CX to a laptop, using a standard RJ-45 cable (not • supplied). Give the laptop a temporary IP address within the same subnet (e.g.192.168.1.20).
  • Page 19: Top Level Menu

    Mentor CX 4.3 T EVEL From the web browser, the top level menu is always displayed within the blue horizontal bar. The selected item is indicated by a “pressed button” image. The second navigation level is a vertical side-bar and the selected item, in this case “Overview”, is repeated within the panel immediately to the right.
  • Page 20: Vector | Status

    4.4.1 Vector | Status | Overview This page provides an overview of the entire Mentor reference system, i.e. the Mentor CX and the two associated Mentor RG. The IP addresses of the linked Mentor RG should be entered on the Admin | System Settings page –...
  • Page 21: Vector | Status | Channels

    Mentor CX 4.4.2 Vector | Status | Channels Channel status is provided on three pages. All Channels Main Channel Formats Option Channel Formats Page 21 of 43 Trilogy Communications...
  • Page 22: Vector | Status | Options

    Mentor CX 4.4.3 Vector | Status | Options Installed Option Modules are denoted by a green indicator and appropriate text to identify module type. 4.4.4 Vector | Status | Network This page provides read-only information for the current network settings. Any changes can be made after logging in to the Admin page –...
  • Page 23: Vector | Setup

    Mentor CX 4.5 V ECTOR ETUP 4.5.1 Vector | Setup | Channels This screen allows channels to be included in or excluded from the changeover decision making process. Channel setup: Select which channels will be included in the changeover decision •...
  • Page 24: Vector | Setup | A/B Sync

    Mentor CX 4.5.2 Vector | Setup | A/B Sync The Mentor CX monitors the status of linked Mentor RGs to see if they are locked using one of the approved synchronisation method(s) e.g. GPS, PTP, NTP etc. The list of approved synchronisation methods is configured on this screen.
  • Page 25: Vector | Control

    Mentor CX 4.6 V ECTOR ONTROL The control screen provides all elements of control. • Changeover Mode: o Auto = controlled by detecting errors on incoming signals from connected Mentor RG o Manual = controlled on-screen or from front panel o GPI = external control connected to GPI input.
  • Page 26: Vector | Admin

    The minimum values required for correct operation are Default IP and Subnet Mask. These values alone will allow the Mentor CX to be accessed by an admin PC located on the same subnet. If you plan to access the Mentor CX from a different subnet then a Gateway address must be entered.
  • Page 27: Vector | Admin | Password

    4.7.3 Vector | Admin | Password Factory defaults are: Login name – admin Password - trilogy 4.7.4 Vector | Admin | Software Update Update files for Mentor CX and option boards will be supplied by Trilogy Technical Support. Any software update may be disruptive and should be carefully scheduled.
  • Page 28: Vector | Help

    There are three items on the Help menu, as shown below. The info page has two tabs. The info page provides a summary of currently installed software for the Mentor CX and any fitted option boards. There are two tabs, General and Technical Support. The General tab presents an overview, in a user friendly format.
  • Page 29 Mentor CX PDF versions of the Mentor CX User Guides can be downloaded from the support website by clicking the short links on this page. QR codes provide an easy way for smartphone users to download the documents. Page 29 of 43...
  • Page 30: Main Controller Board

    Mentor CX 5. MAIN CONTROLLER BOARD 5.1 I NTRODUCTION In addition to providing overall control of the Mentor CX, the main controller board carries the following channels which constitute the “base” unit: • 2 x SDI - channels 1 - 2 4 x Analogue - channels 3 - 6 •...
  • Page 31: Aes (Balanced Via D-Type Connectors)

    AES signals from the Mentor RG can be transmitted as unbalanced via a 75Ω BNC output, or balanced via a D-type connector. See section 5.1.3 for information about balanced connection. Mentor CX supports AES with 32, 44.1, 48 and 96 kHz sampling frequencies. The following errors cause a failure condition: •...
  • Page 32: Option: 331-20-00 Universal Option Module

    AES signals from the Mentor RG can be transmitted as unbalanced via a 75Ω BNC output, or balanced via a D-type connector. See section 5.1.3 for information about balanced connection. Mentor CX supports AES with 32, 44.1, 48 and 96 kHz sampling frequencies. The following errors cause a failure condition: •...
  • Page 33: Connectors

    (A and B) plus one switched output. The module may be fitted in any of the six available option slots. Mentor CX uses the high density ‘Micro BNC’ connector type, which is interchangeable with the Amphenol ‘HD BNC’ range. The image below shows the option module fitted in the last available option slot, numbered 17/18.
  • Page 34: Option: 331-21-00 Passive Option Module

    (A and B) plus one switched output. The module may be fitted in any of the six available option slots. Mentor CX uses the high density ‘Micro BNC’ connector type, which is interchangeable with the Amphenol ‘HD BNC’ range. The image below shows the option module fitted in the last available option slot, numbered 17/18.
  • Page 35: Option: 331-22-00 Sd/Hd/3G Sdi Video Option Module

    (A and B) plus one switched output. The module may be fitted in any of the six available option slots. Mentor CX uses the high density ‘Micro BNC’ connector type, which is interchangeable with the Amphenol ‘HD BNC’ range. The image below shows the option module fitted in the last available option slot, numbered 17/18.
  • Page 36: Specification

    9.3 P OWER Power Supplies The Mentor CX can accommodate two PSU modules providing the option to support PSU redundancy. PSU modules are load sharing and hot swappable. Mains input x 2 100-240VAC, 50/60Hz, auto select...
  • Page 37: Gpi Input 1: Remote Changeover Control

    Mentor CX 9.4 GPI I 1: R NPUT EMOTE HANGEOVER ONTROL Type Current sinking type (also referred to as ground closure type). Purpose Controls output selection when the system changeover mode is configured for GPI. Input activation Selects secondary channel set ≤1.0 V (wrt interface system 0V)
  • Page 38: System Base Module

    Mentor CX 9.8 S YSTEM BASE MODULE Channel Set Type Balanced AES/LTC Number of Channel Sets 2 AES pairs/2 LTC pairs Changeover Type Latching relay Retains selected channel set on power fail Unselected channel terminated into 100 Ω. Switching Time Typically, <1.5 ms (max <3.0 ms)
  • Page 39 Mentor CX ’ YSTEM ODULE Channel Set Type NTSC, PAL, Tri-level Sync (TLS), AES/DARS, word clock, clock 10 MHz, clock 27 MHz Number of Channel sets Changeover Type Latching relay Retains selected channel set on power fail. Unselected channel terminated into 75 Ω.
  • Page 40 Mentor CX ’ YSTEM ODULE Channel Set Type SD-SDI, HD-SDI, 3G-SDI Number of channel sets Changeover Type HF 3 GHz latching relay Retains selected channel set on power fail Switching Time Typically <1.5 ms (max <10 ms) Return Loss <-15dB 5 MHz to 1.5 GHz <-10dB 1.5 GHz to 3 GHz...
  • Page 41: Odule

    Mentor CX 9.9 331-20-00 U NIVERSAL PTION ODULE Channel Set Type NTSC, PAL, Tri-level, AES/DARS, word clock, clock 10 MHz, clock 27 MHz Number of channel sets Changeover Type Latching relay Retains selected channel set on power fail. Unselected channel terminated into 75 Ω.
  • Page 42: 331-21-00 Passive Option Module

    Mentor CX 9.10 331-21-00 P ASSIVE PTION ODULE Channel Set Type Single-ended video up to 3 GHz Number of channel sets Changeover Type HF 3 GHz latching relay Retains selected channel set on power fail Switching Time Typically <1.5 ms (max <10 ms) Return Loss <-40dB up to 5 MHz...
  • Page 43: 331-22-00 Sd/Hd/3G Sdi Video Option Module - Formats Detected And Reported

    Mentor CX 9.12 331-22-00 SD/HD/3G SDI V – F IDEO PTION ODULE ORMATS ETECTED AND EPORTED Physical Hactive x Vactive/Frame rate Hz/scan type SMPTE 425-X 1920x1080/30/sF (note: will be reported as 1920x1080/60/i) SMPTE 425-X 1920x1080/29.97/sF (note: will be reported as 1920x1080/59.94/i)

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