Fiber Options S711D User manual

Instruction Manual
. . . light years ahead™
S711D & S7711D
UNIVERSAL DATA
TRANSMISSION SYSTEM

This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used properly in strict accordance
with the instructions contained herein, may cause interference to
radio communication. It has been tested and found to comply with
the limits for Class A computing devices in accordance with the spec-
ifications found in Subpart J of Part 15 of FCC rules, which are
designed to provide reasonable protection against such interference
when the equipment is operated in a commercial environment.
Operation of this equipment in a residential area is likely to cause
interference, in which case the user will be required to take whatev-
er means may be necessary to correct the interference at his own
expense.
Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate
the equipment.
This apparatus does not exceed the Class A limits for radio noise
emission set out in the Radio Interference Regulation of Industry of
Canada.
Cet appareil numerique de la classe A respecte toutes les exigences
du Reglement sur le materiel brouilleur du Canada.
Federal Communications Commission
and Industry Canada Radio Frequency
Interference Statements
S711D & S7711D Instruction Manual
FCC PART 15
COMPLIANT

S711D & S7711D: UNIVERSAL DATA TRANSMISSION SYSTEM
GENERAL
This manual is a guide to the installation and operation of
the S711D and S7711D series fiber optic universal data
transmission systems. Please read the entire manual
before installing the equipment.
NOTE: The series numbers S711D, S711D-T and
S711D-R will be used to describe all models of transmit-
ters and receivers unless noted otherwise.
The Series S711D and S7711D data transmission sys-
tems offer simultaneous transmission of duplex digital
control data. The S711D system operates over one or two
multimode fibers while the S7711D uses one or two sin-
gle-mode fibers.
A complete one-fiber system consists of a transmitter,
S711D-T, and a receiver, S711D-R. A complete two-fiber
system consists of two transceivers. Units are designed
for standalone operation or for installation in Fiber
Options’ 515R1 or 517R1 Card Cages or 501R miniature
enclosures.
All S711D units have one data input/output connector
and one or two fiber connectors.
Unpacking the Unit
In the event that anything is missing from the following
list, contact your authorized Fiber Options dealer or rep-
resentative.
S711D Transmitter, Receiver, or Transceiver
(S7711D Transmitter, Receiver, or Transceiver)
Instruction manual
Save the original packing materials in case it becomes
necessary to return the unit.
FIGURE 1: SYSTEM DIAGRAM
one or two
optical fibers
Data In
Data Out
Data In
Data Out
S711D-T
S711D-R
INSTALLATION
Installation Considerations
This fiber-optic link is supplied in two forms, as a stand-
alone module and as a rack card. Units should be
installed in dry locations protected from extremes of tem-
perature and humidity.
Standalone Modules
1. Determine where the module is to be installed, and
ensure that there is adequate space at both ends for
making the various cable connections and for reading the
diagnostic LEDs.
2. Standalone modules are provided with mounting holes
for four No. 6 screws (3-mm or 3.5-mm screws).
Some standalone modules consist of a rack card
installed in a 501R standalone enclosure. The rack card
is normally installed in the enclosure at the factory. These
standalones are mounted in same way as any other
standalone module.
The type of screw chosen must be suitable for the sur-
face on which any module is to be mounted.
Rack Cards
Rack cards are designed to be installed in one of Fiber
Options’ 19-inch (483-mm) EIA standard card-cage
racks, either the 515R1 or the 517R1. They may also be
supplied in the 501R standalone rack-card enclosures.
Follow these steps after selecting data format and alarm
output.
continued on page 5
Fiber Options 1
. . . light years ahead™

S711D & S7711D - CONNECTORS, JUMPERS, SWITCH SETTINGS, DIMENSIONS
1.1 in
(27.9 mm)
2.56 in
(65.0 mm)
2.81 in
(71.4 mm)
2.0 in
(51.8 mm)
3.75 in
(95.3 mm)
FIGURE 3: CONNECTOR, SWITCH, AND LED LOCATIONS
STANDALONE MODULES
FIGURE 2: CONNECTOR, SWITCH, AND LED LOCATIONS
RACKMOUNT CARDS
FIGURE 5: 2-FIBER STANDALONE MODULES FIGURE 6: SINGLE-FIBER STANDALONE MODULES
FIGURE 4: ROTARY SWITCH SETTINGS
(SW1 OR DATA SELECT):
Setting Mode
0 Disable (factory preset)
1 RS232 (3-wire)
2 RS232 + handshake (5-wire)
3 TTL
4 RS422
5 Manchester/Biphase
6 RS485 2-wire standard
7 RS485 2-wire 1V
8 RS485 2-wire 2V
9 RS485 4-wire standard
A RS485 4-wire 1V
B RS485 4-wire 2V
C,D,E Not Used
F Test Mode
0
E
F
D
1
2
3
5
6
7
8
C
B
A
9
4
S711D & S7711D Instruction Manual
2

nc = no connection
8-PIN DATA CONNECTION TABLES - RACK-MOUNT CARDS - S711D S7711D
Pin No. Function
8Ground
7nc
6nc
5RS232 IN
4nc
3nc
2RS232 OUT
1Ground/Shield
Mode Switch SW1: Position 1
RS232 Interface
Pin No. Function
8Ground
7nc
6RTS/CTS IN
5RS232 IN
4nc
3RTS/CTS OUT
2RS232 OUT
1Ground/Shield
Mode Switch SW1: Position 2
RS232 with Handshaking Interface
Pin No. Function
8Ground
7nc
6TTL IN
5tie to pin 1
4nc
3TTL OUT
2nc
1Ground/Shield
Mode Switch SW1: Position 3
TTL Interface
Pin No. Function
8Ground
7nc
6RS422 IN +
5RS422 IN -
4nc
3RS422 OUT +
2RS422 OUT -
1Ground/Shield
Mode Switch SW1: Position 4
RS422 Interface
Pin No. Function
8Ground
7RS485 termination - tie to pin 5
6RS485+
5RS485 -
4+5 VDC BIAS OUT
3nc
2nc
1Ground/Shield
Position 8 = 2V offset
Mode Switch SW1:
RS485 2-Wire Interface
Position 7 = 1V offset
Position 6 = standard offset
Pin No. Function
8Ground
7RS485 termination - tie to pin 5
6RS485 in +
5RS485 in -
4+5 VDC BIAS OUT
3RS485 out +
2RS485 out -
1Ground/Shield
Position B = 2V offset
Mode Switch SW1:
RS485 4-Wire Interface
Position A = 1V offset
Position 9 = standard offset
Pin No. Function
8Ground
7nc
6Manchester/Biphase in +
3nc
5Manchester/Biphase in -
4nc
2Manchester/Biphase out +
1Manchester/Biphase out -
Mode Switch SW1: Position 5
Manchester/Biphase Interface
Pin No. Function
8Ground
6Manchester/Biphase in +
3nc
5Manchester/Biphase in -
4nc
2Manchester/Biphase out +
1Manchester/Biphase out -
7
Manchester/Biphase
termination
tie to pin 5
Mode Switch SW1: Position 5
Manchester/Biphase Interface
Termination Unit
Pin No. Function
8Ground
7nc
6tie to pin 3
5tie to pin 2
4nc
3tie to pin 6
2tie to pin 5
1nc
Mode Switch SW1: Position F
Test Mode Loopback Interface
TABLE 1: TABLE 2: TABLE 3:
TABLE 4:
TABLE 9:TABLE 8:TABLE 7:
TABLE 5: TABLE 6:
Fiber Options 3

S711D & S7711D - STANDALONE MODULES - 10-PIN DATA CONNECTION TABLES
nc = no connection
Pin No. Function
10 Ground
9nc
8nc
7RS232 IN
6nc
5nc
4RS232 OUT
3Ground/Shield
2Ground
1+12 VDC
2Ground
1+12 VDC
2Ground
2Ground
2Ground
2Ground
1+12 VDC
1+12 VDC
2Ground
1+12 VDC
2Ground
1+12 VDC
2Ground
1+12 VDC
1+12 VDC
1+12 VDC
Data Select switch: Position 1
RS232 Interface
Pin No. Function
10 Ground
9nc
8RTS/CTS IN
7RS232 IN
6nc
5RTS/CTS OUT
4RS232 OUT
3Ground/Shield
Data Select switch: Position 2
RS232 with Handshaking Interface
Pin No. Function
10 Ground
9nc
8TTL IN
7tie to pin 3
6nc
5TTL OUT
4nc
3Ground/Shield
Data Select switch: Position 3
TTL Interface
Pin No. Function
10 Ground
9nc
8RS422 IN +
7RS422 IN -
6nc
5RS422 OUT +
4RS422 OUT -
3Ground/Shield
Data Select switch: Position 4
RS422 Interface
Pin No. Function
10 Ground
9RS485 termination - tie to pin 5
8RS485+
7RS485 -
6+5 VDC BIAS OUT
5nc
4nc
3Ground/Shield
Position 8 = 2V offset
Data Select switch:
RS485 2-Wire Interface
Position 7 = 1V offset
Position 6 = standard offset
Pin No. Function
10 Ground
9RS485 termination - tie to pin 5
8RS485 in +
7RS485 in -
6+5 VDC BIAS OUT
5RS485 out +
4RS485 out -
3Ground/Shield
Position B = 2V offset
Data Select switch:
RS485 4-Wire Interface
Position A = 1V offset
Position 9 = standard offset
Pin No. Function
10 Ground
9nc
8Manchester/Biphase in +
5nc
7Manchester/Biphase in -
6nc
4Manchester/Biphase out +
3Manchester/Biphase out -
Data Select switch: Position 5
Manchester/Biphase Interface
Pin No. Function
10 Ground
8Manchester/Biphase in +
5nc
7Manchester/Biphase in -
6nc
4Manchester/Biphase out +
3Manchester/Biphase out -
9
Manchester/Biphase
termination
tie to pin 7
Data Select switch: Position 5
Manchester/Biphase Interface
Termination Unit
Pin No. Function
10 Ground
9nc
8tie to pin 5
7tie to pin 4
6nc
5tie to pin 8
4tie to pin 7
3nc
Data Select switch: Position F
Test Mode Loopback Interface
TABLE 10: TABLE 11: TABLE 12:
TABLE13:
TABLE 18:
TABLE 17:
TABLE 16:
TABLE 14: TABLE 15:
S711D & S7711D Instruction Manual
4

515R1 and 517R1 Card Cage Racks
CAUTION: Although a rack card may be installed without
turning off power to the rack (hot-swappable), Fiber
Options recommends that the power switch on the rack
power supply is turned OFF and that the rack power supply
is disconnected from any power source.
1. Make sure that the card is oriented right-side up, and
slide it into the card guides in the rack until the edge con-
nector at the back of the card seats in the corresponding
slot in the rack’s connector panel. Seating may require
thumb pressure on the top and bottom of the card’s front
panel.
CAUTION: Take care not to press on any of the LEDs.
2. Tighten the two thumb screws on the card until the front
panel of the card is seated against the front of the rack.
501R Standalone Enclosures
CAUTION: Fiber Options recommends that the enclosure
is not connected to any power source during installation.
1. Look inside the enclosure to determine the location of
the socket for the edge connector on the card. Orient the
card so that it will seat in the socket, and slide it into the
enclosure until the edge connector at the back of the card
seats in the socket. Seating may require thumb pressure
on the ends of the card’s front panel.
CAUTION: Take care not to press on any of the LEDs.
2. Tighten the two thumb screws until the front panel of the
card is seated against the front of the enclosure.
MODULE SETUP
Data Selection
NOTE: The Data Selection switch on standalone units, or
SW1 on rack cards, is shipped in the Disabled setting.
Using the rotary Data Select switch, select a valid data for-
mat according to the Data Select Settings in Figure 4.
NOTE: If the link is going to support RS485, refer to
NOTES ON RS485 APPLICATIONS.
Data Translation
The data translation capability of the S711D series is
unique in the industry. It allows translation from one format
to another, thus eliminating the requirement for external
translation devices.
The translation is in the physical layer only; it cannot inter-
pret specific protocols, nor do command translations. Due
to the encoding schemes utilized in Manchester and
Biphase, these formats are exempt from translation. Data
translation examples are shown in Table 19.
Alarm Jumper
Rack cards are supplied with an alarm function that goes
active if the optical signal input to the receiver fails. The
alarm is always indicated on the front panel of the card by
a red Level/LossTM LED. The alarm may also be output to
the rack power supply, where a sonalert (audible alarm)
and alarm output contact closure may be activated.
The alarm is set to ON at the factory. If the alarm output is
not desired, remove jumper J4 from pins 1 - 2 and store the
jumper on pins 2 - 3. Refer to Figure 2.
NOTE: Removing jumper J4 does not affect the operation
of the Level/LossTM LED. Loss of optical signal will always
be indicated by a red Level/Loss LED.
CONNECTIONS
Data Connections: Connect the data cable to the remov-
able 8-pin or 10-pin screw terminal on the S711D accord-
ing to Tables 1 - 18 for the data format selected above.
Fiber Optic Cable Connection: Most cable manufacturers
identify the individual fibers in the cable. Select appropri-
ately terminated fiber and mark both ends with unique iden-
tification label (e.g. for cable no. 03, fiber no. 08) to ensure
that the fiber connected to the near end is the same one
that is connected to the far end. The proper optical con-
nection will link the transmitter's OUT port to the receiver's
IN port.
1. Wipe the inside of the port’s sleeve with a lint-free
pipe cleaner moistened with reagent-grade isopropyl alco-
hol. Blow dry with dry air.
2. Clean the connector using a lint-free cloth dampened
with alcohol to thoroughly wipe the side and end of the fer-
rule. Blow the ferrule dry with dry air. Visually inspect the
ferrule for lint.
3. Fasten the fiber optic cable to the port.
continued from page 1
Fiber Options 5

Power Connections: All S711D standalone modules
may be powered only by 12 -16 VDC. Connect input power
according to the label on the module.
Rack modules: Power connections are made automatical-
ly when the card is installed. To supply power to the rack,
connect the rack power supply to an AC outlet and set the
power switch to ON.
OPERATION
S711D links operate automatically once installed. To exe-
cute the test mode, see page 7. For an explanation of LED
color codes, see LED OPERATION and Table 20.
MAINTENANCE
There is no operator maintenance other than keeping the
units clean.
TECHNICAL SUPPORT
For installation assistance, or in the event that a unit should
fail or if the cause of a problem cannot be determined, con-
tact Fiber Options’ technical support at:
TOLL FREE: 800-342-3748
PHONE: 631-567-8320
S711D & S7711D Instruction Manual
6

RS485 APPLICATION NOTES
The S711D is configurable for both full-duplex (4-wire) and
half-duplex (2-wire) operation. It can be used for interfac-
ing to systems adhering strictly to the RS485 specification
and for use with systems that use a modified, "fail-safe
biased" RS485 bus.
Connection: Use high quality twisted-pair wiring, and
make sure all connection points are clean and tight. A
loose connection on one of the wires can appear to func-
tion, yet cause intermittent errors: data LEDs may be flash-
ing as signals pass through the system, but those signals
will be corrupt.
Configuration: Fiber Options Universal Data units are
designed to work with virtually any RS485 system.
Unfortunately, some systems operate on a "modified" ver-
sion of RS485; they use failsafe biasing to pull up/down
their bus during a tri-state condition. In a standard RS485
system, when a driver on a properly terminated bus goes
into tri-state (inactive), the voltage between the differential
outputs should be less than 200 millivolts. (This is what is
considered "standard offset" in the product instruction man-
uals). A differential output tri-state voltage this small can
cause some nonstandard systems to latch up, since they
are designed for much larger, "fail-safe," offsets. To be able
to interface to such equipment, Fiber Options Universal
Data products offer two more "offset" level modes. That is,
the maximum differential input voltage that can be applied
where it will be perceived to be in tri-state. Of course, the
equipment manufacturer does not disclose this information.
In most cases, the Fiber Options unit should be configured
for "standard offset" operation. When the system is oper-
ating properly, the DATA IN and DATA OUT LEDs will be off
when there is no communication (tri-state) and they will
flash when data is being sent or received. In the case
where the link is not functioning properly, (LEDs will most
likely not turn off), change the DATA SELECT switch on the
unit to a higher offset mode. First try 1 V, then 2 V. If sim-
ply switching the mode switch does not prove effective, the
offset level may have to be emulated at one end of the sys-
tem by using pull-up/down resistors on the data connector.
The S711D has a +5 V bias pin and ground pins on the con-
nector for this purpose. Contact equipment manufacturer's
technical support for recommended resistor values and
configuration.
Termination: RS485 systems need to be properly termi-
nated in order to work reliably. Exactly two terminating
resistors are used on each RS485 bus, at the furthest ends
of the link.
NOTE: The resistors for terminating RS485 data are built
into the S711D.
If the S711D is positioned at either end of the data bus, ter-
minate the unit by connecting a jumper between the pins
indicated in Tables 7, 8, 16, and 18.
If the terminating resistors are left out, the tri-state condition
will not be detected, and the bus may lock up. If there are
too many terminations on the bus, signal levels may drop
too low, or driver circuitry may fail.
TEST MODE
Test mode allows the end user to verify the operation of the
copper receiver/driver circuit in an S711D, as well as the
fiber connection from one S711D to another. Using the test
mode is simple:
1. Switch one of the S711Ds to be tested into position F
(TESTMODE) on the rotary switch. At this end only, wire
the connector as shown in Table 9.
NOTE: The unit set to position F (TEST-MODE) is the
transmitter during testing.
2. At the receiving (or opposite) end, switch the S711D to
position 9 on the rotary switch.
3. In test mode, the test transmitter should behave as fol-
lows:
A. Enabled LED is RED, indicating that a valid data format
has not been selected.
B. Data OUT LED is slowly flashing between amber,
green, and off. This indicates that the test mode is gen-
erating an output pattern and sending it out on copper.
C. Data IN LED should mimic the DATA OUT LED. This
indicates a good, proper loopback connection, and proves
that the data transmit/receive circuitry is working properly.
D. Level/Loss may be red or green - indicates received
fiber signal strength.
4. The test receiver (position 9) should behave as follows:
A. Enabled LED is GREEN, a valid data format is select-
ed.
B. Data OUT LED should slowly flash amber, green, off.
This indicates that the fiber path from the unit set for
TESTMODE is reliable.
Fiber Options 7
RS485 APPLICATION NOTES

S711D & S7711D Instruction Manual
8
C. Data IN LED should be OFF, since there is no input
copper connection made.
D. Level /Loss should be green to off (but not red), indi-
cating that sufficient optical power is being received.
After the test has been performed at one end, swap switch
positions and connectors to perform the test on the other
end. Having done this, you have proven that the copper-
in-to-fiber-to-copper-out conversion is working in both
directions.
LED OPERATION
The S711D has 4 LED indicators that are very useful in
describing the current state of operation, as well as the cur-
rent status of data flow and fiber optic signal strength.
These indicators are LEVEL/LOSSTM, DATA IN, DATA
OUT, and ENABLED. They function as follows:
LEVEL/LOSSTM: This LED is useful for indicating the rela-
tive optical signal strength at the fiber optic receiver. When
sufficient optical power is being received, the LED shines
green. As the optical power is decreased, as happens
through long fiber runs, splices, or connections, the inten-
sity of the LEVEL/LOSSTM LED will diminish until the limit
of the S711D's sensitivity range has been reached. At this
point the LED will appear OFF. If any additional optical
attenuation is introduced, the LEVEL/LOSSTM LED will turn
bright RED, indicating an insufficient amount of optical
power is being received. All data will default to it's failure
state level to eliminate bus contention.
DATA IN: The DATA IN LED indicates the level of the data
being input to the S711D over copper. A GREEN LED indi-
cates a logic HIGH is present on the copper inputs. A YEL-
LOW indication indicates a logic LOW is present on the
copper. No color (OFF) indicates a tri-state or high imped-
ance input. This can therefore be used to determine the
resting state of your equipment and, in the RS485 states,
verify that a tri-state is being detected properly. Unlike
most competing units, the S711D has special circuitry to
capture data transitions and make them visible on the
LEDs. High-speed bursts of activity, previously unde-
tectable by standard LED circuits, can easily be seen by
this special circuitry.
DATA OUT: The DATA OUT LED functions identically to
the DATA IN LED except that the LED represents data that
is being output from the unit. This LED has the same high-
speed capture circuitry described in the DATA IN section.
ENABLED: This LED has three states. GREEN, to indi-
cate a valid mode has been selected, RED to indicate an
invalid mode (spare or test-mode) has been selected, or
FLASHING RED/GREEN to indicate that NO mode has
been selected.
Table 20 provides a convenient summary of the LED dis-
play functions.
RS485 APPLICATION NOTES CONTINUED

Fiber Options 9
TABLE 20: LED DIAGNOSTIC INDICATORS
LED
NAME COLOR INDICATES / CORRECTIVE ACTION
LEVEL/ Green Sufficient optical power received. No action required.
LOSSTM Red Insufficient optical power received. Verify fiber connected & within optical budget, receiver power on.
DATA Green Logic high into unit. No action required.
IN Yellow Logic low into unit. No action required.
Off Tristate or disabled condition. Verify data connections, data source powered on.
DATA
Green Logic high received. No action required.
OUT
Yellow Logic low received. No action required.
Off Tristate received or disabled condition. No action required.
ENABLED Green Mode switch set to valid data format. No action required.
Red Disabled or in Testmode. Check Data Select conforms to desired configuration - may be valid.
Translation
TX
Switch
Setting
RX
Switch
Setting
Comment
TTL àRS232, 3 wire 3 1 Signal level conversion.
RS232, 3 wire àTTL 1 3 Signal level conversion.
TTL àRS422 3 4 Single Ended to Differential Conversion.
RS422 àTTL 4 3 Differential to Single Ended Conversion.
RS232, 3 wire àRS422 1 4 Single Ended to Differential Conversion.
RS422 àRS232, 3 wire 4 1 Differential to Single Ended Conversion.
RS232, 5 wire àRS485 2 7 - A RS232 Handshaking bit is used to indicate tri-state.
RS485 àRS232, 5 wire 7 – A 2 Tri-State detection circuitry activates handshaking bit
TABLE 19: DATA TRANSLATIONS
NOTE: When configuring a pair of transceivers to translate data, the unit originating a signal is considered the transmitter
and the unit receiving and translating the signal is considered the receiver.
DATA TRANSLATIPONS AND LED DIAGNOSTIC INDICATORS - S711D S7711D
TABLE 20: LED DIAGNOSTIC INDICATORS
LED
NAME COLOR INDICATES / CORRECTIVE ACTION
LEVEL/ Green Sufficient optical power received. No action required.
LOSSTM Red Insufficient optical power received. Verify fiber connected & within optical budget, receiver power on.
DATA
Green Logic high into local unit. No action required.
IN Yellow Logic low into local unit. No action required.
Off Tristate or data disconnected. Verify data connections, data source powered on.
DATA Green Logic high received from remote unit. No action required.
OUT Yellow Logic low received from remote unit. No action required.
Off Tristate or disabled condition. Verify data connections, verify Data Select is Enabled.
Green Mode switch set to valid data format. No action required.
ENABLED Red Disabled or invalid mode selected. Verify Data Select conforms to desired configuration.
Flashing Operating in Testmode. May be valid. Verify Data Select conforms to desired configuration.
Red/Green

INSTRUCTION
MANUAL
S711D & S7711D: UNIVERSAL DATA TRANSMISSION SYSTEM
All specifications are subject to change without notice. Information furnished by FIBER OPTIONS is
believed to be accurate and reliable. However, no responsibility or liability is assumed by FIBER
OPTIONS for its use, nor for any infringement of patents or other rights of third parties which may
result from its use. No license is granted by implication or otherwise under any patent or other rights
of FIBER OPTIONS.
www.fiberoptions.com
80 Orville Drive, Bohemia NY 11716-2533
US Tel: 631-567-8320 Fax: 631-567-8322
800-342-3748 877-FiberFax (877-342-3732)
UK Tel: +44 113 238 1668 Fax: +44 113 253 8121
Australia Tel: +61 3 9370 9192 Fax: +61 3 9370 9936
France Tel: +33 01 60 86 54 53 Fax: +33 01 60 86 86 04
Germany Tel: +49 700 34237678 Fax: +49 36256 21991
Hong Kong Tel: +852 2907 8108 Fax: +852 2142 5063
Latin America Tel: 800-342-3748 Fax: 877-342-3732
. . . light years ahead™
11-0711D-Rev B
Copyright 2001 by FIBER OPTIONS.
All rights reserved.
010620

Fiber Options Inc., 80 Orville Drive, Bohemia, NY 11716-2533
Phone: 516-567-8320 or 1-800-342-3748; Fax: 1-877-FiberFax (1-877-342-3732 toll free) or 516-567-8322
Internet: www.fiberoptions.com Email: info@fiberoptions.com Rev 031401
S711F2F Fiber Optic Data Transmission Link
For Casi Rusco Access Control Systems
A
n S711F2F system can consist of (a) one transmitter and one
receiver operating over one fiber or (b) two transceivers operating
over two fibers. The relay contacts are rated for 150 V, 0.5 A, 10 W
max. The units require no setup adjustments.
Data Connections: The data connector is a removable screw
terminal connector attached at the rear of the housing. Pin numbering
is in descending order from 8 at the top to 1 at the bottom. Remove
the connector from the unit and attach the data connections according
to Table 1.
Fiber Connections: Each unit has one optical connector at the rear
end of the housing. Connect the fiber to these connectors.
Power Connections: The power connector is a removable screw
terminal connector attached at the rear of the housing. Pin numbering
is identified on the housing. Refer to Table 2 or to the labeling on the
housing for pin connection polarities and voltages.
LED Indicators: Each unit is equipped with a set of diagnostic LEDs
that provide extensive information about performance and activity on
the link. Refer to Table 3 for a key to the LED functions.
. . . light years ahead
AD01-002/
A

www.fiberoptions.com
Pin No. Function
8 Contact closure in, ground
7 Contact closure in
6 Contact closure out
5 Contact closure out
4 Ground
3 Not connected
2 Ground
1 Data In/out
Pin No. Function
3 +13 to 16 VDC
2 Not connected
1 Ground
LED Name Signal Color Indications
Green Any shade of green indicates
adequate optical signal
LEVEL/
LOSS Optical
Red Optical loss exceeds budget, or no
Off No activity on copper at either end
Green Receiving data over fiber (steady or
pulsing)
DATA
IN F2F I/O
Amber Transmitting data over fiber (steady or
pulsing)
Green Contact closure IN (pin 7) shorted to
ground
DATA
OUT
Contact
Closure IN Amber Contact closure IN (pin 7) open (not
shorted to ground
Green Receiving a CLOSED command from
the fiber
ENABLED Contact
Closure OUT Red Receiving an OPEN command from
the fiber. *
*If the LEVEL/LOSS LED is red, this LED will be red and the contacts will be open. If the unit is
powered down, the contacts open.
Table 1
Pin Connections for Data Connector J2
Table 2
Pin Connections for Power Connecto
r
Table 3
LED Display Key
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