Control and Alarm Voltage sense, open collector, or contact inputs Features: FOM-00: Voltage Sense, Open Collector, or Dry Contact Inputs. State Detection for TIA-, TIA-, and TTL Signals. FOM-0: SPDT Form C Contact Closures FOM-0: SPST Form A (Normally Open) or Form B (Normally Closed) Contact Closures Each channel can be individually programmed as Form A or Form B Description The fiber optic isolator\modem cards provide uni-directional transport of low-level control or contact status signals. The status of all signals is shown on front panel indicators in addition to power supply and optical link status for each card. The FOM-0 and FOM-0 have the option to send optical status only back to the FOM-00. Applications The user can achieve complete electrical isolation for control and status signal in areas of high electrical noise or in/out of RF shielded enclosures (SCIF). The fiber optic cable is not susceptible to induced impulse noise and since signal ground is not carried over the link, the signal is not affected by elevated ground potential from lightning or other sources. The fiber optic cable enhances privacy of communications. A typical link consists of a FOM-00 at one end and a FOM-0 or FOM-0 at the opposite end. The FOM-00 can be used with dry contact closure sense or voltage inputs. The voltage input mode will accept polarity sensitive TIA-, TTL, or TIA- state indications as well as sensing AC or DC voltages for simple presence. Each of the input channels can be configured individually. Note that while the unit accepts certain electrical data standards, these units are not suitable for data use. Any data activity is simply viewed as an AC voltage and will be identified as being on The FOM-0 has all channels fixed as Form C solid state contacts. The NC contact will short to the C contact when the FOM powered off or loses the fiber link. The FOM-0 supports Form A or Form B solid state contacts on the output channels. Each of the channels can be configured individually and the contacts revert to their switch-selected state upon loss of power or fiber link. Typical Application AC/DC Control Signals DB Cable FOM-00 Fiber Optic Cable FOM-0 or FOM-0 DB Cable Response Indicator
FOM-00 Connections FOM-0 Connections FOM-0 Connections 0 0 0 0 0 0 DB- Male pinout DB- Male pinout DB- Male pinout Channel Lead Pin 0 Chassis Ground (optional cable shield connection) A B A B A B A 0 B A B A B 0 A B A B A B A B A B A B Channel Contact Pin Chassis Ground (optional cable shield connection) N.O. Common N.C. N.C. Common N.O. N.O. 0 Common N.C. N.C. Common N.O. 0 N.O. Common N.C. N.C. Common N.O. N.O. Common N.C. N.C. Common N.O. Channel Type Pin 0 Chassis Ground (optional cable shield connection) Contact Contact Contact Contact Contact Contact Contact 0 Contact Contact Contact Contact Contact 0 Contact Contact Contact Contact Contact Contact Contact Contact Contact Contact Contact Contact
FOM-00 Switch Settings Switches in three groups of, marked S, S, and S (all defaults are off) S.: Polarity Sense Mode, Channel S.: Polarity Sense Mode, Channel S.: Polarity Sense Mode, Channel S.: Polarity Sense Mode, Channel S.: Polarity Sense Mode, Channel S.: Polarity Sense Mode, Channel S.: Polarity Sense Mode, Channel S.: Polarity Sense Mode, Channel S.: Polarity Sense Mode, Channel S.: Polarity Sense Mode, Channel 0 S.: Polarity Sense Mode, Channel S.: Polarity Sense Mode, Channel Selects whether the input is polarity sensitive or not. This only applies if the Detection Mode switch is set for Voltage. If the Detection Mode switch is set for dry Contacts / Open Collector then this switch has no function. Voltage detection is not polarity sensitive. Voltage detection is polarity sensitive. B lead must be positive with respect to A lead for on. FOM-00 Switch Settings Switches in x group of twelve SW: Detection Mode Select Channel SW: Detection Mode Select Channel SW: Detection Mode Select Channel SW: Detection Mode Select Channel SW: Detection Mode Select Channel SW: Detection Mode Select Channel SW: Detection Mode Select Channel SW: Detection Mode Select Channel SW: Detection Mode Select Channel SW0: Detection Mode Select Channel 0 SW: Detection Mode Select Channel SW: Detection Mode Select Channel Detection Mode switches. Selects Voltage Sense Mode or Contact Closure / Open Collector Mode for corresponding channel UP DOWN Channel is in Contact Closure / Open Collector Mode Channel is in Voltage Sense Mode. See S / S settings for further control in this mode. S. through S.: No Function S. through S.: No Function S.: Optical Only Enables or Disables the local optics operation. Power must be cycled after changing this setting. optics are active in bidirectional optical link allowing the FOM- 00 to display the status of the FOM-0 or FOM-0 local optical signal. Unit is only. The OPTICS led will not light, as there is no expected signal at the local optical connector. If there is a signal present the OPTICS led will flash red, indicating that there is a signal attached to the FOM-00 when one was not expected. When the link is in this mode, there is no reporting of the signal status from the far end. S.: No Function S.: Display Test This setting will cause the front panel display to flash each of the indicators an alternating red and green for verification purposes. The unit continues to function normally - only the display is affected. Normal indicator operation All indicators alternately flash red or green.
FOM-0/FOM-0 Switch Settings Switches in three groups of, marked S, S, and S (all defaults are off) S. through S.: No Function S. through S.: No Function S. through S.: No Function S.: Optical Only Controls the local optics for bidirectional or one-way operation. S.: No Function S.: Display Test optics are active in bidirectional optical link. Unit is only. No data is sent out of optics. The local OPTICS led will only indicate the status of the local optical. When the link is in this mode, there is no reporting of the optical signal status back to the transmitting end. This setting will cause the front panel display to flash each of the indicators and alternating red and green for verification purposes. The unit continues to function normally - only the display is affected Normal indicator operation All indicators alternately flash red or green FOM-0 Switch Settings Switches in x group of twelve SW: Form A / Form B Select Channel SW: Form A / Form B Select Channel SW: Form A / Form B Select Channel SW: Form A / Form B Select Channel SW: Form A / Form B Select Channel SW: Form A / Form B Select Channel SW: Form A / Form B Select Channel SW: Form A / Form B Select Channel SW: Form A / Form B Select Channel SW0: Form A / Form B Select Channel 0 SW: Form A / Form B Select Channel SW: Form A / Form B Select Channel Selects Form A or Form B contacts out for corresponding Channel UP Form B (Normally Closed) contacts out DOWN Form A (Normally Open) contacts out
Form A/B Contacts Out Form C Contacts Out Control Signals In FOM-00/0/0 Displays Power Steady Green Card power supply normal operation Steady Red Card power supply failure or in overcurrent protection Card failure / No power Optics Steady Green Optics in sync at each end of link Flashing Green Flashing Yellow Flashing Orange Steady Red Steady Yellow LOCAL optical is receiving errors LOCAL optical signal present, but no sync Sub-sync error - possible card type mismatch No LOCAL optical signal REMOTE optical error (no signal / sync or receiving errors) FOM-00 Controls In Power Optics Only Ch Ch Ch Ch Ch Ch Ch Ch Ch Ch 0 Ch Ch FOM-0 Form C Out Power Optics Only Ch Ch Ch Ch Ch Ch Ch Ch FOM-0 Form A/B Out Power Optics Only Ch Ch Ch Ch Ch Ch Ch Ch Ch Ch 0 Ch Ch Flashing Red FOM-00 set for only, but optical signal detected at optic Card is only / Card failure / No power Only Steady Green FOM set for optical only (FOM-00 only) Bi-directional operation for status reporting from receiving end FOM-00 Controls In FOM-0 Controls Out FOM-0 Controls Out Only Steady Green FOM set for optical only (FOM-0 or FOM-0 only) OPT PWR OPT PWR OPT PWR Bi-directional operation for status reporting to transmitting end CH Yellow Corresponding Control signal in On state CH Corresponding Control signal in state CH CH CH CH CH CH Note: FOM-0 only supports the first channels CH CH 0 CH CH 0-0-000 0-0-000 0-0-000
Electrical Specifications Optical Characteristics - All Min Typ Max Order Fiber Max Fiber Dist ʎ Bandwidth Loss Connector Voltage Range (V) 0 Suffix Type* (km) (nm) Typ (db) (db) Power Requirement Supply Current (ma) - 0 - T Multimode OM. 0. 0. ST L Multimode OM. 0. 0. LC FOM-00 Min Typ Max Voltage Sense or Polarity Sensitive State detection mode (Channels are isolated in this mode) Contact Sense or Open Collector detection mode (Channels have common Signal Ground) Switching Rate (ms) 0 - ms (approx.) - faster rates are sensed as a steady '' Sampling Jitter (%) 0-0 Input Voltage Range (VDC) - A Lead: Sources 0- VDC @. ma for relay contact connection or open collector driver input B Lead: Signal Ground for relay contact connection or ground reference for open collector driver FOM-0 and FOM-0 Min Typ Max On Resistance (Ω) - - Resistance (MΩ) Form A Contacts 0 - - Form B Contacts - - 00 Maximum Voltage (VDC or Peak VAC) 0-00 Maximum Current (ma) 0-00 Form C Break-Before-Make Time (ms) - Environmental Storage Temperature ( C) Operating Temperature ( C) Storage Humidity % Non Condensing Operating Humidity % Non-Condensing -0-0 - 0 0 0 0 0 Interface Connector All DB- Male Physical Specifications Card Dimensions Length Width Height Weight in ( mm) 0. in ( mm).. in ( mm) 0 oz (0. kg) TB Singlemode OS, OS 0 0 0. ST LB Singlemode OS, OS 0 0.. LC C SFP Cage with no Optical Module Installed * Specs obtained assuming fiber is as described in Fiber Type with a MB Data Rate Optical Information 0 nm multimode Output Level Input Level Loss Budget Typ. Max Link. micron Typ. Max Link 0 micron 0nm singlemode Nominal Output Level Input Level Loss Budget Typ. Max Link. micron 0 nm singlemode Nominal Output Level Input Level Loss Budget Typ. Max Link. micron Accessories -. dbm min; - dbm max; - dbm typical - dbm min; - dbm max. dbm min; 0 dbm typical km.km - dbm min; - dbm max -0 dbm min; + dbm max.0 dbm min km - dbm min; - dbm max -0 dbm min; + dbm max.0 dbm min 0km RMC-000 slot,. high (U), wide rack mount chassis Includes one PSM-000 AC power supply RMC-000D slot,. high (U), wide rack mount chassis Includes one PSM-0 DC power supply PSM-000 RMC-000 AC redundant power supply, 0-0 VAC input, 0W PSM-0 RMC-000 DC redundant power supply, - VDC input, 0W SAC-AC Single slot stand-alone chassis, 0-0 VAC or 0-0 VDC input, W SAC-DCSingle slot stand-alone chassis, DC input Ordering Information FOM - 00 - Optical Interface: T = multimode, 0nm, km, ST L = multimode, 0nm, km, LC TB = singlemode, 00nm, 0km, ST LC LB = singlemode, 00nm, 0km, LC C = SFP cage, no optical module Other Optical interfaces available on our custom Catalog Model: 00 = input channels 0 = Form C contact channels outputs 0 = Form A or B contact channels outputs