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INSTALLATION INSTRUCTION CMX 831 November 27, 2000 1(9) Video Networks BI-DIRECTIONAL VIDEO, AUDIO AND DATA LINK UNIT CMX 831 (VERSION G) Figure 1. CMX 831 1) Unit status LED alarms 10) Audio Ch1/Ch2 connections 2) Video status LEDs 11) Data Configuration (A & B) 3) Audio status LEDs 12) Data Ch1/Ch2 connections 4) Data status LEDs 13) Current loop configuration 5) Current loop status LEDs 14) Current loop connections 6) Video input and output connectors, BNC 15) Grounding connection 7) Optical connector, FC/PC 16) Mains voltage connector for power cord 8) Unit configuration switches 17) Mounting pieces for 19 inch frame installation 9) Audio configuration switches Connector type in positions 10, 12 and 14 is a removable screw terminal CAUTION! THIS OPTICAL UNIT USES CLASS 1 LASER DIODE. DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS. APPLICABLE STANDARD IEC825-2: 1993 NOTE: VERSION CHANGE THIS INSTALLATION INSTRUCTION IS VALID FROM THE VERSION G ONWARDS (SEE TYPE LABEL OF THE UNIT). \\Majestix\Vidnet\Marketing\Misc_and_Old_stuff\User_Manuals_Old_Originals\old_installation\INSTALL.ENG\CFO800\CMX831_ver_G_new.doc INSTALLATION INSTRUCTION CMX 831 November 27, 2000 2(9) Video Networks GENERAL The CMX 831 is a bi-directional, digital single channel optical transceiver for video surveillance, monitoring and remote controlled systems. The unit can be installed into standard 19-inch installation cabinet. Stand-alone installation directly to a wall is also possible. SETTINGS BEFORE INSTALLATION The unit has several settings for video, audio, data and current loop/contact closure operations that must be defined by internal DIP switches before installation. See the separate paragraphs for each setting. Note! Although the unit can be taken in use with default factory settings, the MASTER/SLAVE setting must always be determined to guarantee the basic link operation. INSTALLATION The module is secured with the locking screws (4 pcs) to a 19-inch installation cabinet. For free circulation of cooling air, leave at least 1U high space above the unit. The supply voltage range is 85...264V AC (47...440 Hz) and the unit is connected to a mains outlet by separate power cord CPC 121 (Europe), CPC 122 (UK) or CPC 123 (US). In stand-alone installation the unit can be mounted to e.g., a wall, through the two holes at the top of the unit. Maximum diameter of the fixing screw is 8 mm. In a wall installation, the front panel should face in an upward direction. VIDEO INDICATORS, CONNECTIONS AND SETTINGS (ALSO GENERAL SETTINGS) The CMX 831 has separate connections for incoming and outgoing baseband video signals. The impedance of the baseband video input (BNC) can be switched internally to 75 ohm or high impedance operation, by the means of the DIP switches. The nominal input and output level is 1 Vpp. LED Video Input & Output FUNCTION Video Input 75 ohm Video Input high Z Master Slave Normal Operation Local Loopback Enable Laser ON Laser OFF COLOUR Yellow Green Blinking Yellow 1 ON OFF 2 STATUS Signal <0.15V Signal detected Overload 3 4 The default factory settings are: Master, Normal Operation, Laser On and Video Input 75 Ω. ON OFF ON OFF ON OFF Master/Slave: Each link must have the master unit and the slave unit. Master/Slave configuration error is shown with LED displays (see LINK STATUS AND UNIT FAIL INDICATORS). Local Loopback: all signals inserted to unit are digitally looped back to outputs of the same unit (Video in to Video out, Audio in to Audio out, Data Ch 1 to Data Ch 2). This can be used for testing the operation of the unit. Laser OFF: the optical output is shutdown and the modulating signal in laser drive stage is muted (only for e.g. testing purposes). \\Majestix\Vidnet\Marketing\Misc_and_Old_stuff\User_Manuals_Old_Originals\old_installation\INSTALL.ENG\CFO800\CMX831_ver_G_new.doc INSTALLATION INSTRUCTION CMX 831 November 27, 2000 3(9) Video Networks AUDIO INDICATORS, CONNECTIONS AND SWITCH SETTINGS Two audio channels for bi-directional transmission are available. The nominal input and output level is 0 dBm. The connectors are of the removable screw terminal type. The audio inputs can be switched to balanced or unbalanced and the input impedance ( between input +/- ) to 600 Ωor high impedance. The audio outputs can be also connected either to balanced or unbalanced. The output impedance can be switched to 600 Ωor low impedance. Alarms signals, as well as control inputs, are located in the same connectors (open collector). AUDIO INDICATORS LED COLOUR Audio Green Inputs Blinking Yellow 1&2 Audio Green Outputs Blinking Yellow 1&2 STATUS Level >0 dBm Overload >12 dBm Level >0 dBm Overload >12 dBm AUDIO 1 CONNECTION PIN SIGNAL 1 Ch1 audio ground 2 Ch1 audio input 3 Ch1 audio input + or unbalanced input 4 A alarm -> Hardware failure alarm 5 B1 alarm -> Link status alarm 6 Ch1 audio output 7 Ch1 audio output + unbalanced output 8 Ch1 audio ground NOTE Open collector, 14V / 10 mA Open collector, 14V / 10 mA AUDIO 2 CONNECTION PIN SIGNAL 1 Ch2 audio ground 2 Ch2 audio input 3 Ch2 audio input + or unbalanced input 4 B2 alarm / control 2 -> Video input alarm 5 B3 alarm / control 1 -> Video output alarm 6 Ch2 audio output 7 Ch2 audio output + unbalanced output 8 Ch2 audio ground AUDIO DIP SWITCHES Audio Config. Mode Balanced Input Unbalanced Input Input 600 ohm. Input High Z Output 600 Ω Output Low Z AUDIO 1 1 2 OFF ON 3 NOTE Open collector, 14V / 10 mA Open collector, 14V / 10 mA AUDIO 2 5 6 OFF ON 4 ON OFF 7 8 ON OFF OFF ON OFF ON OFF ON OFF ON \\Majestix\Vidnet\Marketing\Misc_and_Old_stuff\User_Manuals_Old_Originals\old_installation\INSTALL.ENG\CFO800\CMX831_ver_G_new.doc INSTALLATION INSTRUCTION CMX 831 November 27, 2000 4(9) Video Networks DESCRIPTION OF AUDIO DIP-SWITCHES: 1 2 3 4 5 6 ON = audio 1 input ( - ) to ground ON = 600 Ωtermination is selected in audio 1 input ON = audio 1 ( - ) output low impedance, ON = audio 1 ( + ) output low impedance, ON = audio 2 input ( - ) to ground OFF = audio 1 ( - ) output 600 Ω OFF = audio 1 ( + ) output 600 Ω 7 ON = 600Ωtermination is selected in audio 2 input ON = audio 2 ( - ) output low impedance, OFF = audio 2 ( - ) output 600 Ω 8 ON = audio 2 ( + ) output low impedance, OFF = audio 2 ( + ) output 600 Ω Non-inverted or unbalanced output or input = + Inverted output or input = - *The default factory settings are: Balanced Input, Input 600 Ω, Output 600 Ω DATA INDICATORS, CONNECTIONS AND SWITCH SETTINGS Two (RS-422/485, TTL) or four (RS-232) data channels are available for bi-directional transmission. The connectors are of the removable screw terminal type. DATA INDICATORS LED Data inputs 1 & 2 Data outputs 1 & 2 DATA 1 CONNECTIONS PIN RS-232 1 Data ground 2 Input 1 3 Input 3 4 Data Ground 5 Output 1 6 Output 3 7 Temperature Alarm Output 8 Alarm Ground COLOUR Green Yellow Green Yellow STATUS Data “0” Data “1” or NC Data “0” Data “1” RS-422 / RS-485 Data Ground Ch1 Non-inverted (+) input Ch1 Inverted (-) input Data Ground Ch1 Non-inverted (+) output Ch1 Inverted (-) output -> Temperature Alarm TTL Data Ground Ch1 Input Data Ground Ch1 Output (Open Collector, 14V / 10 mA ) \\Majestix\Vidnet\Marketing\Misc_and_Old_stuff\User_Manuals_Old_Originals\old_installation\INSTALL.ENG\CFO800\CMX831_ver_G_new.doc INSTALLATION INSTRUCTION CMX 831 November 27, 2000 5(9) Video Networks DATA 2 CONNECTIONS PIN RS-232 1 Data ground 2 Input 2 3 Input 4 4 Data ground 5 Output 2 6 7 8 Output 4 External Resistor: Input A External Resistor: Input B RS-422/485 CH1 2 6 CH1 5 1, 4, 8 2 Data 1 3 CH1 2 6 CH1 5 5 CH2 6 7 8 CH3 3 2 6 CH1 CH3 2 6 5 CH1 5 CH2 5 7 External resistor ( RS-485 ) 1, 4 8 External resistor ( RS-485 ) 1, 4 Vref CH1 CH1 1, 4, 8 Data 2 3 CH2 Data 1 1, 4, 8 2 TTL 3 Data 2 6 Ch2 output Data 1 Data 2 CH2 Ch2 input Data ground RS-232 1, 4, 8 3 TTL Data ground RS-485 Data 1 3 RS-422 / RS-485 Data Ground Ch2 Non-inverted (+) input Ch2 Inverted (-) input Data Ground Ch2 non-inverted (+) output Ch2 inverted (-) output Data 2 3 CH4 3 2 CH2 2 6 CH4 6 5 CH2 5 7 7 8 8 1, 4 1, 4 Vref CH2 CH2 Figure 2. Data Interface Connections DATA DIP-SWITCHES Data Config. Mode RS-232 TTL RS-422 RS-485 short time*) RS-485 long time**) RS-422/485 line bias RS-422/485 no line bias RS-422/485 term RS-422/485 no term Data Config. A CH1 CH2 1 2 3 ON ON ON OFF ON OFF OFF ON OFF ON OFF ON OFF OFF OFF 4 ON ON ON OFF OFF Data Config. B CH1 1 2 3 OFF OFF OFF OFF ON OFF OFF OFF OFF ON OFF ON OFF CH2 4 5 6 OFF OFF OFF OFF OFF ON OFF OFF OFF ON OFF ON OFF 7 OFF OFF 8 OFF OFF ON OFF ON OFF *) CH1: 0.3 ms, CH2: 1.2 ms, **) CH1: 1.2 ms, CH2: 10 ms (CH2 10 ms time constant is adjustable by external resistor, more details can be found in a separate application note, which is available on request). Note! The default factory setting is RS-232. \\Majestix\Vidnet\Marketing\Misc_and_Old_stuff\User_Manuals_Old_Originals\old_installation\INSTALL.ENG\CFO800\CMX831_ver_G_new.doc INSTALLATION INSTRUCTION CMX 831 November 27, 2000 6(9) Video Networks DESCRIPTION OF DATA DIP-SWITCHES Data Config A 1, 2 Data Mode Selection 3, 4 Data Mode Selection ( channel 1 ) ( channel 2 ) Data Config B 1 Line Termination of Channel 1 2 Voltage Reference of TTL 3, 4 Line Bias of RS-422/485 Input 5 Line Termination of Channel 2 6 Voltage Reference of TTL 7, 8 Line Bias of RS-422/485 Input ( 120 Ω ) ( Channel 1 ) ( 660 Ω , channel 1 ) ( 120 Ω ) ( Channel 2 ) ( 660 Ω , Channel 2 ) + 5V + 5V 660 Ω 47 kΩ 120 Ω 660 Ω Databuffer 47 kΩ Figure 3. Line bias and fail safe implementation in RS-422/485. SETTING EXAMPLE: RS485 (short time) with termination and line bias in Channel 1 Data Config A CH1 1 2 ON OFF CH2 3 Data Config B CH1 1 2 ON OFF 4 3 ON 4 ON CH2 5 6 7 8 Note! The default factory setting for DATA is RS-232. Tim ing sequence Tx is enabled when data is low T IM E (m s) 0 1.2 2.4 starts from low to high transition 3.8 5.0 6.2 C M X 831 data input 1.2 m s T x enabled C M X 831 T x enable T x disabled C M X 831 data output Rx enabled TX high-Z Rx enabled TX high-Z Figure 4. Timing Diagram (for more information on timing sequence adjustment, see separate application note, which is available on request) \\Majestix\Vidnet\Marketing\Misc_and_Old_stuff\User_Manuals_Old_Originals\old_installation\INSTALL.ENG\CFO800\CMX831_ver_G_new.doc INSTALLATION INSTRUCTION CMX 831 November 27, 2000 7(9) Video Networks CURRENT LOOP/CONTACT CLOSURE INDICATORS, CONNECTIONS AND SETTINGS Two channels for current loops or contact closure lines are available. The current loops can be switched to either active or passive mode (max. current 20 mA). The connector is a removable screw terminal type connector. INDICATORS LED CL/CC Inputs 1 & 2 C LOOP/CC Outputs 1 & 2 COLOUR Green Green STATUS Current Active/Contact Closed Current Active/Contact Closed CONNECTIONS C LOOP 1 PIN SIGNAL 1 Data Ground 2 C LOOP Input + 3 C LOOP Input 4 Contact Closure Output A ( 24 VDC / 1A ) 5 Contact Closure Output B ( 24 VDC / 1A ) 6 C LOOP Output + 7 C LOOP Output 8 Data Ground C LOOP 2 PIN 1 2 3 4 5 6 7 8 SIGNAL Data Ground C LOOP Input + C LOOP Input Contact Closure Output A ( 24 VDC / 1A ) Contact Closure Output B ( 24 VDC / 1A ) C LOOP Output + C LOOP Output Data Ground DIP-SWITCHES MODE C LOOP In Active C LOOP In Passive C LOOP Out Active C LOOP Out Passive Relay Output Enable Relay Output Disable 1 CHANNEL 1 2 3 ON OFF ON OFF 4 5 CHANNEL 2 6 7 ON OFF 8 ON OFF ON OFF ON OFF DESCRIPTION OF DIP-SWITCHES 1 ON = C LOOP Driver is Active in ch1, (20 mA internal current source is selected ) 2 C LOOP Receiver is Active (= ON), or Passive (= OFF) in ch1 3 ON = Relay 1 is Active (controlled by ch1 ) 4 Not Used 5 C LOOP Driver is Active (= ON), or Passive (= OFF) in ch2 6 C LOOP Receiver is Active (= ON) or Passive (= OFF) in ch2 7 ON = Relay 2 is Active (controlled by Ch 2) 8 Not Used The default factory settings are C LOOP in Passive, C LOOP out Active, and Relay Output Disable. When the current loop is active, the current is generated in CMX 831. In passive mode, the terminal equipment generates the current. See the figure on next page for pin information. \\Majestix\Vidnet\Marketing\Misc_and_Old_stuff\User_Manuals_Old_Originals\old_installation\INSTALL.ENG\CFO800\CMX831_ver_G_new.doc INSTALLATION INSTRUCTION CMX 831 November 27, 2000 8(9) Video Networks Figure 5. Connection examples for CLOOP and Contact Closure Operation. FIBRE CONNECTION The optical connection is an FC/PC type connector. The fibre patch cables used must fullfill the minimum return loss requirement of 30 dB (Angled-PC connectors recommended). When installing the fibre optic cable, do not exceed the minimum bending radius when connecting the cable to the system. Note! For correct optical operation, ensure that all optical connectors are cleaned immediately before mating. Connectors should always be cleaned using high-purity alcohol (e.g. methyl or isopropyl alcohol). Dry the surfaces using clean compressed air or other equivalent pressurised gas. The optical connectors on the equipment should always be protected with dustcaps when there is no fibre inserted. DIP-SWITCHES LOCATION All DIP switches are located on the back panel of the unit is the following order as shown below. \\Majestix\Vidnet\Marketing\Misc_and_Old_stuff\User_Manuals_Old_Originals\old_installation\INSTALL.ENG\CFO800\CMX831_ver_G_new.doc INSTALLATION INSTRUCTION CMX 831 November 27, 2000 9(9) Video Networks LINK STATUS AND UNIT FAIL INDICATORS Unit Fail LED Red Condition Laser Bias Failure PLL Fail (only effective when Link Status is OK) Reason • temperature too high • unit failure • temperature too high • unit failure Link Status LED Yellow Condition Reason Action Optical Input Low • remote unit is off Yellow (Blinking) Bad Sync Green&Yellow (Blinking) Config. Error Green (Blinking) Some Errors • optical budget exceeded or too high optical reflections • both units are masters • both units are slaves • optical reflection loopback from disconnected fibre • near to optical budged or too high optical reflections • • • • Green Link OK Red (Blinking) alarm B1 activated outputs muted alarm B1 activated outputs muted • alarm B1 activated • Outputs muted (except when Local Loopback test mode is selected). • data outputs not updated during errors • contact outputs not updated during errors • all functions are normal Output muting has the following effects: video forced to low, data output forced to “1”, audio output muted and contacts forced to open. ALARM OUTPUTS All alarms at the back connector of the unit are low open collector outputs, with the capability of 14 V/10 mA switching (see paragraphs AUDIO/DATA INDICATORS, CONNECTIONS... for pin information). Alarm A B1 B2 B3 TEMP Description • Hardware failure alarm • PLL fail (only effective when Link Status is OK) • Link status alarm • Optical input level is low • Master/Slave configuration error • Video input alarm • Video output alarm • Temperature alarm (internal temp. too high) Possible causes • laser bias alarm • No video input • no video signal received from link • Operation temp. range exceeded \\Majestix\Vidnet\Marketing\Misc_and_Old_stuff\User_Manuals_Old_Originals\old_installation\INSTALL.ENG\CFO800\CMX831_ver_G_new.doc