RJM HD-212 User manual

RJM & Associates, LLC
175 Joerschke Drive, Suite A
Grass Valley, CA 95945
Phone: [phone] Fax: [phone]
info@rjmandassociates
www.rjmandassociates.com
HD-212
2 x 2 Digital Protection Switch

Statement of Warranty
Statement of WarrantyStatement of Warranty
Statement of Warranty
RJM & Associates, LLC warrants its products for a period of three (3) years from
the date of shipment to e free from defects in materials and workmanship and
meets applica le pu lished specifications. Equipment which has een operated
within its ratings and has not een su jected to mechanical or other a use or
modification y the purchaser, its agents, and/or employees, will, at the option of
RJM, e replaced or repaired if it is returned, freight prepaid, to RJM &
Associates, LLC. Equipment that fails under conditions other than descri ed
herein will e repaired at the price of components and la or in affect at the time
of repair.
This warranty is in lieu of all other warranties, expressed or implied, with respect
to the condition or performance of any RJM product, its merchanta ility or fitness
for a particular purpose. RJM is not lia le for any consequential damages.
FCC Compliance
FCC ComplianceFCC Compliance
FCC Compliance
This equipment has een tested and found to comply with the limits for a Class A
digital device pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasona le protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will e required to correct the
interference at his own expense.
Copyright
CopyrightCopyright
Copyright
© 2014 RJM & Associates, LLC
Contents of this pu lication may not e reproduced in any form without the
written permission of RJM. Reproduction or reverse engineering of copyrighted
software is prohi ited.
July 2014
Part Num er 71
7171
71-
--
-00
0000
003
33
38
88
8

Table of Contents
Table of ContentsTable of Contents
Table of Contents
Introduction
IntroductionIntroduction
Introduction
Important Safeguards and Notices ............................................................................i
Important Warnings and Cautions ............................................................................ ii
Warnings ............................................................................................................ ii
Cautions ............................................................................................................ iii
North American Power Supply Cords ................................................................ iv
Section I
Section ISection I
Section I
eneral Description ................................................................................................ 1
Section II
Section IISection II
Section II
Specifications .......................................................................................................... 3
Section III
Section IIISection III
Section III
Installation ............................................................................................................... 4
Switches and jumpers ....................................................................................... 4
Ethernet Processor reset ................................................................................... 5
Section IV
Section IVSection IV
Section IV
Circuit Description ................................................................................................... 6
Video Path ......................................................................................................... 6
Logic ................................................................................................................. 6
Status Output .................................................................................................... 6
Power Supply/Regulators .................................................................................. 7
Section V
Section VSection V
Section V
Diagrams ................................................................................................................. 8
External Control Connector Pin Assignment ...................................................... 9
Section VI
Section VISection VI
Section VI
Ethernet Interface .................................................................................................. 10

i
Important Safeguards and Notices
Important Safeguards and NoticesImportant Safeguards and Notices
Important Safeguards and Notices
Information on the following pages provides important safety
guidelines for both Operator and Service personnel. Specific
warnings and cautions will be found throughout the manual
where they apply, but may not appear here. Please read and
follow the important safety information, noting especially those
instructions related to risk of fire, electric shock or injury to
persons.
ARNING
ARNINGARNING
ARNING
Any instructions in this manual that require opening the
Any instructions in this manual that require opening the Any instructions in this manual that require opening the
Any instructions in this manual that require opening the
equipment cover or
equipment cover or equipment cover or
equipment cover or enclosure are for use by qualified service
enclosure are for use by qualified service enclosure are for use by qualified service
enclosure are for use by qualified service
personnel only. To reduce the risk of electric shock, do not
personnel only. To reduce the risk of electric shock, do not personnel only. To reduce the risk of electric shock, do not
personnel only. To reduce the risk of electric shock, do not
perform any servicing other than that contained in the operating
perform any servicing other than that contained in the operating perform any servicing other than that contained in the operating
perform any servicing other than that contained in the operating
instructions unless you are qualified to do so
instructions unless you are qualified to do soinstructions unless you are qualified to do so
instructions unless you are qualified to do so.
..
.
Symbols and Their Meaning in This
Symbols and Their Meaning in ThisSymbols and Their Meaning in This
Symbols and Their Meaning in This Manual
ManualManual
Manual
The lightning flash with arrowhead symbol, within an equilateral
triangle, alerts the user to the presence of “dangerous voltage”
within the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle alerts the
user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the
appliance.
This symbol represents a protective grounding terminal. Such a
terminal must be connected to earth ground prior to making any
other connections to the equipment.
The fuse symbol indicates that the fuse referenced in text must
be replaced with one having the ratings indicated.

ii
Important arnin
Important arninImportant arnin
Important arnings and Cautions
gs and Cautionsgs and Cautions
gs and Cautions
arnings
arningsarnings
arnings
•Heed all warnings on the unit and in the operating instructions.
•Do not use this product in or near water.
•Disconnect ac power before installing any options.
•This product is grounded through the grounding conductor of the
power cord. To avoid electrical shock, plug the power cord into a
properly wired receptacle before connecting the product inputs
or outputs.
•Route power cords and other cables so that they are not likely to
be damaged.
•Disconnect power before cleaning. Do not use liquid or aerosol
cleaners; use only a damp cloth.
•Dangerous voltages exist at several points in this product. To
avoid personal injury, do not touch exposed connections and
components while power is on.
•Do not wear hand jewelry or watches when troubleshooting high
current circuits, such as the power supplies.
•During installation, do not use the door handles or front panels
to lift the equipment as they may open abruptly and injure you.
•To avoid fire hazard, use only the specified correct type, voltage
and current rating as referenced in the appropriate parts list for
this product. Always refer fuse replacements to qualified service
personnel.
•To avoid explosion, do not operate this product in an explosive
atmosphere unless it has been specifically certified for such
operation.
•Have qualified personnel perform safety checks after any
completed service.

iii
arnings (continued)
arnings (continued)arnings (continued)
arnings (continued)
•If equipped with redundant power, this unit has two power cords.
To reduce the risk of electrical shock, disconnect both power
supply cords before servicing.
•This equipment may employ laser(s). If it does, they comply
with the current construction requirements of the code of
Federal regulations, title 21, chapter I, subchapter J, sections
1010.2 and 1010.3 and sections 1040.10 and 1040.11.
•Do not attempt to view light output of the laser transmitter, eye
damage may result. Always use an optical power meter to verify
laser output.
•To prevent injury:
Never install telephone wiring during a lightning storm.
Never install telephone jacks in wet locations unless the jack is
specifically designed for wet locations.
Never touch uninsulated telephone wires or terminals unless the
telephone line has been disconnected at the network interface.
Use caution when installing or modifying telephone lines.
Cautions
CautionsCautions
Cautions
•hen installing this equipment, do not attach power cord to
building surfaces.
•To prevent damage to equipment when replacing fuses, locate
and correct the trouble that caused the fuse to blow before
applying power.
•Verify that all power supply lights are off before removing power
supply or servicing equipment.
•Use only specified replacement parts.
•Follow static precautions at all times when handling this
equipment.

iv
Cautions (continued)
Cautions (continued)Cautions (continued)
Cautions (continued)
•Leave the back of the frame clear for air exhaust cooling and to
allow room for cabling. Slots and openings in the cabinet are
provided for ventilation. Do not block them.
•Front door is part of fire enclosure and should be kept closed
during normal operation.
•This product should be powered on as described in the manual.
To prevent equipment damage select the proper line voltage at
the ac input connector as described in the Installation
documentation.
•To prevent damage to this equipment read the instructions in
this document for proper input voltage range selection.
•To reduce the risk of electric shock, ensure that the two power
supply cords are each plugged into a separate branch circuit.
•Circuit boards in this product are densely populated with surface
mount and ASIC components. Special tools and techniques are
required to safely and effectively troubleshoot and repair
modules that use SMT or ASIC components. For this reason,
service and repair of RJM products incorporating surface mount
technology are supported only on a module exchange basis.
Customers should not attempt to troubleshoot or repair modules
that contain SMT components. RJM assumes no liability for
damage caused by unauthorized repairs. This applies to both in-
and out-of-warranty products.
Nort
NortNort
North American Power Supply Cords
h American Power Supply Cordsh American Power Supply Cords
h American Power Supply Cords
This equipment is supplied with molded grounding plug (NEMA 5-
15P) at one end and molded grounding connector (IEC 320-C13) at
the other end. Conductors are CEE color coded, light blue (neutral),
brown (line) and green/yellow (ground).
Operation of this equipment at voltages exceeding 130 VAC will
require power supply cords which comply with NEMA
configurations.

v
Note:
Note:Note:
Note:
This equipment has been tested and found to comply with the limits
for a class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful
interference, in which case the user will be required to correct the
interference at his own expense.

SECTION 1
HD-212
General description
The RJM HD-212 functions as an input transfer system that can switch between
two high definition or SDI digita video input signa s, A and B. This is
accomp ished automatica y using the interna signa detect, or manua y using
either the oca or remote se ect A/B switch. A transfer modu e occupies one-ha f
of a 1RU frame. The 1RU frame is designed to house a maximum of two RTU
units. Each unit operates independent y from the other. They do share a common
power supp y.
The frame has space for two power supp ies for redundancy, with the output of
the supp y vo tage diode OR’d on the main modu e with the output of the other
supp y. Each supp y has its own AC ine connection. If either supp y fai s or its
AC ine fai s, then the other supp y wi keep the unit running.
The switchover is determined by the presence of video on the in-use video input.
If video is interrupted on the se ected (in-use) input and if video is present on the
non-se ected input, then a switch to the non-se ected input wi occur. If no video
is present on the non-se ected input then no switch wi occur. In the digita HD-
212 oss of video is not the oss of the data stream, but actua y the oss of the
SMPTE TRS (EAV-SAV). The presence/absence detector can be set to SD-on y,
HD-on y or AUTO detection of either. When in the AUTO mode, the unit wi a so
detect DVB-ASI.
A togg e switch is provided on the modu e to a ow the unit to operate in either
automatic or manua mode. The unit can be operated manua y at any time by
pushing the red button ocated inside the ho e in the front cover, or by providing
an externa GPI c osure to ground.
Once a switchover has been comp eted from one input to the other, the system
wi not automatica y return to the first input upon restoration of signa . If it is
desired that the unit be operated from that first source, then the return must be
accomp ished manua y. This is true if the switch has occurred from the B input to
the A input. If the switch has occurred from input A to input B, then there is an
additiona feature that a ows the unit to return-to-A upon re-activation of the A
signa .
Upon oss of power to the changeover unit or the remova of the processor
modu e, re ays are provided that wi a ow the A Input signa to be re-routed to
the #1 On-Line output, thereby bypassing the changeover function.
The video inputs terminate in 75 ohms.

2
When power is app ied, the A signa input is se ected as the defau t mode.
The output of the HD-212 can be either the A or B input. There are three 75Ω
BNC connectors for the On-Line output and one BNC connector for the Off-Line
output.
There is an EXT CONTROL connector, which is a fema e 9 pin ‘D’. The Externa
Contro provides for externa A/B transfer and a so A/B signa and power supp y
hea th monitoring of the HD-212. Refer to page 9 for the proper pinout.
A second EXT CONTROL connector is provided, which is an RJ-45. This
connector is on y uti ized if the optiona Ethernet Interface modu e is inc uded.
The connector provides a path from the interface modu e to an externa network
connection.

3
SECTION II
SECTION IISECTION II
SECTION II
HD
HDHD
HD-
--
-212
212212
212
Specifications
SpecificationsSpecifications
Specifications
Video:
Video:Video:
Video:
Inputs:
Number 2
Input type 75Ω, BNC per IEC 169-8
Signa eve 800mV ±10%
Return oss >13dB at 270Mb
Data rate 270Mb or 1.485Gbps
Equa ization Automatic
>300 meters Be den 1694A @270Mb
>100 meters Be den 1694A
@1.485Gbps
Outputs:
Number 3 – On- ine
1 – Off- ine
Impedance 75Ω, BNC
Signa eve 800mV ±10%
Return oss >15dB at 270Mb
Specifications:
Jitter HD – 125ps
SDI – 150ps
Temperature:
Temperature:Temperature:
Temperature:
Performance 0 to 40 degrees centigrade
Operating 0 to 50 degrees centigrade
Humidity 90% non-condensing
Power requirements
Power requirementsPower requirements
Power requirements:
::
: 115/230VAC, 50/60 Hz, 20W
Size
SizeSize
Size:
::
: 1.75” x 19” x 10”
Weight
WeightWeight
Weight:
::
: ≈7 bs 3 kg
* Specifications and design are subject to change without notice.

4
SECTION III
SECTION IIISECTION III
SECTION III
HD
HDHD
HD-
--
-212
212212
212
Insta ation
Insta ationInsta ation
Insta ation
The HD-212 input transfer unit is a one rack-unit frame designed to be mounted
in a standard 19” equipment rack. There are no specia coo ing requirements
though care shou d be taken to ensure that extreme y hot equipment not be
insta ed direct y beneath. It is a so recommended that, if possib e, one rack-unit
of space be eft above the unit.
Un ess specified at the time of order, the HD-212 is shipped from the factory for
nomina 117VAC 60Hz power. The unit comes shipped with a 120V type AC
p ug. If it is desired to operate at 230VAC 50Hz, a se ector switch must be set on
the power supp y. The supp y is removed from the frame, the switch set to
230VAC, and the supp y rep aced in the frame.
The two HD/SDI video inputs A and B are interna y terminated at 75Ω. The On-
Line and Off-Line outputs are 75Ω. Unused outputs shou d be terminated with
precision 75Ω terminations.
Switches and jumpers
Switches and jumpersSwitches and jumpers
Switches and jumpers
When the unit is in the automatic mode, if the signa fai s on the A input the unit
switches to the B input. A rotary switch (SW4)
(SW4)(SW4)
(SW4) is provided on the modu e to a ow
the user to define whether the unit returns to the A input upon return of the A
signa or that the unit remains on the B input unti it is manua y returned to the A
input. The return-to-A-signa mode can be de ayed by an adjustment of this
switch from position 1 to 5 to a ow from 1 to 5 seconds after the return of the A
signa before the unit switches back to the A input. The zero (0) position of the
switch defeats the return function and dictates that the signa remain-on-B after a
switchover. The switch is set at the factory for 0 (do not return) operation.
A togg e switch (SW2)
(SW2)(SW2)
(SW2) is ocated near the front of the modu e. This switch
permits se ection of the unit in either the automatic (AUTO) or manua (MAN)
mode of operation. P acing the switch in the DOWN position p aces the modu e
in the AUTOMATIC mode of operation. P acing the togg e switch in the UP
position p aces the modu e in the MANUAL mode.

5
The HD-212 can automatica y detect whether the input signa s are HD or SDI. A
4-pin jumper (JP1)
(JP1) (JP1)
(JP1) is provided to a ow the unit to automatica y or manua y set
the standard. If the jumper is p aced between pins 1 & 2, the standards detection
wi be automatic. P acing the jumper between pins 2 & 3 wi set the unit to SD
on y and p acing the jumper between pins 3 & 4 wi set the unit to HD on y. The
jumper is set at the factory to AUTO.
The 6-pin header (JP2)
(JP2)(JP2)
(JP2) is for factory use on y.
LED amps are provided on the modu e to provide certain operating indications.
Each LED b ock contains three amps. In a cases the center amp is not used.
D301 indicates the presence of the A signa and the B signa . It can be viewed
through ight pipes in the front cover of the frame. D302 indicates whether the A
input or the B input is on- ine. This a so can be viewed through ight pipes in the
front cover of the frame. E ements of D303 indicates the presence of +5 vo ts
from each of the two on-board +5V regu ators. The front cover must be removed
to observe these LEDs.
Reset Defau t Settings
Reset Defau t SettingsReset Defau t Settings
Reset Defau t Settings
The Ethernet Processor modu e can be restored to factory defau t settings. To
accomp ish this, proceed as fo ows:
1. Remove the RTU modu e from the frame.
2. A ong the eft-hand side of the modu e, ocate the b ack jumper at JP1
JP1JP1
JP1.
3. Remove the jumper.
4. Just to the eft of the Ethernet Processor sub-modu e, ocate a 2-pin
header JP3
JP3JP3
JP3.
5. P ace the b ack jumper on JP3
JP3JP3
JP3.
6. Re-insert the RTU modu e in the frame and a ow it to power up.
7. Remove the modu e and remove the jumper from JP3
JP3JP3
JP3.
8. Rep ace the jumper on JP1
JP1JP1
JP1.
9. Rep ace the RTU modu e in the frame.
10. The IP address wi return to the defau t number. The processor must be
re-programmed with the appropriate IP address.

6
SECTION IV
SECTION IVSECTION IV
SECTION IV
HD
HDHD
HD-
--
-212
212212
212
Circuit Description
Circuit DescriptionCircuit Description
Circuit Description
Video Path:
Video Path:Video Path:
Video Path:
Each of the two inputs (A & B) connects to an automatic cab e equa izer (U101 &
U201), which compensates for high frequency cab e attenuation. Each equa izer
output connects to the input of two Gennum 1560 de-seria izers (U103 & U203).
Each 1560 has two inputs; one from each of the equa izers. The 1560 ocks an
osci ator (U102 & U202) to the input data stream, and a so detects and ocks to
SMPTE TRS framing words in the signa . It then outputs a LOCK signa when a
va id input signa is present. The 1560 a so re-c ocks the seria data and outputs
a regenerated seria stream.
One 1560 drives the on- ine output drivers (U1 & U2) and the other drives the off-
ine output driver (U3).
Logic:
Logic:Logic:
Logic:
A Xi inx CPLD (U205) contains a ogic to switch the Gennum 1560 inputs to the
proper output, based on the LOCK (video present) signa s. The CPLD outputs
status information to the front pane LEDs, the remote contro connector and the
Ethernet interface, if insta ed.
Status Outputs:
Status Outputs:Status Outputs:
Status Outputs:
Status is avai ab e for different functions on the Externa Contro GPI connector.
Each output is an open co ector output. There are five such outputs. The first
one is A input hea th and A video present, which wi go to a high state if input
hea th is bad or video is not present. The second output is the same as the first
but for the B input hea th and B video present. The third output indicates the
hea th of the power supp ies in the frame. If either supp y goes down then the
output goes high. The fourth status output is for switch se ection status. A ow on
this output indicates that the A input is se ected and a high indicates that the B
input is se ected. The fina output indicates that a switchover has occurred. It
provides a momentary ow. An externa a arm can be connected to this output.

7
Power Supp y / Regu ators:
Power Supp y / Regu ators:Power Supp y / Regu ators:
Power Supp y / Regu ators:
The unregu ated vo tage to the vo tage regu ators on the main board comes from
either of two power supp ies that can be removed at the front of the RTU frame
for service and rep acement. Each unregu ated supp y has an input fuse and a
115/230VAC se ector switch, and contains the circuitry that monitors the positive
output. A dua co or LED on the front of the power supp y disp ays its hea th.
Green indicates norma operation, or hea thy condition. Red indicates either no
AC present, or a prob em with that supp y. The output of the supp y is diode OR’d
to its respective supp y bus.
There are four regu ators on the main board. U401 regu ates the +5 vo ts from
power supp y A, U402 the +5 vo ts from power supp y B. The two outputs are
diode OR’d to provide the main +5 vo ts to the modu e. U403 regu ates the +3.3
vo ts and U404 regu ates the +1.8 vo ts.
The outputs of U401 and U402 are fed to separate vo tage monitors, U405 and
U406. The outputs of these monitors are connected together and provide the PS
Hea th signa to the Externa Contro connector.

8
SECTI
SECTISECTI
SECTION V
ON VON V
ON V
HD
HDHD
HD-
--
-212
212212
212
Diagrams
DiagramsDiagrams
Diagrams
Externa Contro Connector Pin Assignments

9
HD
HDHD
HD-
--
-212
212212
212
EXTERNAL CONTROL CONNECTOR
EXTERNAL CONTROL CONNECTOREXTERNAL CONTROL CONNECTOR
EXTERNAL CONTROL CONNECTOR
9
99
9-
--
-PIN ‘D’
PIN ‘D’PIN ‘D’
PIN ‘D’
1 Power Supp y Hea th (Low = Hea thy)
2 Input B Video Present/Input Hea th
(Low = Video Present and Input Hea thy)
3 Switch-occurred A arm (Momentary Low)
4 Se ect Input A (Active Low, Momentary Pu se)
5 GND
6 Input A Video Present/Input Hea th
(Low = Video Present and Input Hea thy)
7 Input Se ection Status (Low = Input A Se ected)
8 n/c
9 Se ect Input B (Active Low, Momentary Pu se)

10
SECTION VI
SECTION VISECTION VI
SECTION VI
HD
HDHD
HD-
--
-212
212212
212
Ethernet Interface
Ethernet InterfaceEthernet Interface
Ethernet Interface
A core processor is inc uded to a ow the HD-212 to communicate through an
Ethernet interface to an externa contro device. This communication a ows for
status monitoring and switchover contro .
The insta ation consists of insta ing the processor sub-modu e into the mating
connector on the HD-212 with the RJ-45 facing forward. Then connect the
supp ied cab e between the RJ-45 connector on the processor sub-modu e and
the RJ-45 connector on the HD-212.
The jumper (JP3)
(JP3)(JP3)
(JP3) is provided to reset the processor to the defau t parameters.
To reset, remove the modu e from the frame, short the two pins on JP3 and p ug
the modu e into the frame. This wi reset the processor. Remove the modu e and
remove the short to return to norma operation.