Everlz 7707DT User manual

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Revision 1.8 Page - i
TABLE OF CONTENTS
1. OVERVIEW.......................................................................................................................................... 1
2. INSTALLATION................................................................................................................................... 3
2.1. OPTICAL CONNECTIONS......................................................................................................... 3
2.1.1. Single Fiber Versions...................................................................................................... 4
2.1.2. Standard Dual Fiber Version (-F2 version)...................................................................... 4
2.2. SIGNAL CONNECTIONS........................................................................................................... 5
2.2.1. Multi-Pin Terminal Block Installation............................................................................... 5
2.2.2. Serial Data Connections ................................................................................................. 7
2.2.3. LTC Connections ............................................................................................................ 8
2.2.4. GPIO Connections (7707DT-GPIO Versions Only)......................................................... 8
2.3. GENERAL PURPOSE INPUTS AND OUTPUTS....................................................................... 8
2.4. CARE AND HANDLING OF OPTICAL FIBER........................................................................... 9
2.4.1. Safety.............................................................................................................................. 9
2.4.2. Assembly......................................................................................................................... 9
2.4.3. Labeling......................................................................................................................... 10
2.4.4. Handling and Connecting Fibers................................................................................... 10
3. SPECIFICATIONS............................................................................................................................. 11
3.1. RS-422/485 SERIAL DATA...................................................................................................... 11
3.2. RS-232 SERIAL DATA............................................................................................................. 11
3.3. LTC DATA................................................................................................................................ 11
3.4. GENERAL PURPOSE INPUTS (7707DT-GPIO ONLY)........................................................... 11
3.5. GENERAL PURPOSE OUTPUTS (7707DT-GPIO ONLY)....................................................... 11
3.6. OPTICAL INPUT/OUTPUT.......................................................................................................12
3.7. ELECTRICAL ........................................................................................................................... 12
3.8. PHYSICAL................................................................................................................................ 12
4. CARD-EDGE MONITORING AND CONTROL ................................................................................. 13
4.1. STATUS INDICATOR LEDS.................................................................................................... 13
4.2. CARD-EDGE DISPLAY AND CONTROLS.............................................................................. 14
4.2.1. Card-Edge Display Warning Indications........................................................................ 16
4.2.2. Displaying the Optical Power........................................................................................ 16
4.2.3. Selecting the Signal Status Indication Mode................................................................. 16

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Page - ii Revision 1.8
4.2.4. Selecting the Serial Data Type...................................................................................... 18
4.2.5. Selecting the Serial Data Rate...................................................................................... 18
4.2.6. Selecting the Serial Data Termination........................................................................... 19
4.2.7. Selecting the Serial Data Failsafe Bias......................................................................... 20
4.3. CONNECTING RS422 DEVICES BETWEEN MASTER AND SLAVE .................................... 20
5. JUMPER CONTROLS....................................................................................................................... 21
5.1. SELECTING THE CARD ID ..................................................................................................... 21
5.2. SELECTING WHETHER LOCAL FAULTS WILL BE MONITORED
BY THE GLOBAL FRAME STATUS........................................................................................ 21
5.3. CONTROL JUMPER (No Longer Used) ................................................................................. 21
5.4. CONFIGURING THE MODULE FOR FIRMWARE UPGRADES ............................................. 21
6. VISTALINK®REMOTE MONITORING/CONTROL........................................................................... 22
6.1. WHAT IS V ISTA LINK®?............................................................................................................. 22
6.2. V ISTA LINK®MONITORED PARAMETERS.............................................................................. 22
6.3. V ISTA LINK®CONTROLLED PARAMETERS........................................................................... 23
6.4. V ISTA LINK®TRAPS.................................................................................................................. 23
7. APPENDIX - MPK ROUTER CONTROL INTERFACE TO 7707DT ................................................. 24
7.1. OVERVIEW............................................................................................................................... 24
7.2. INTERFACE METHODS........................................................................................................... 26
7.2.1. MPK Interface to RS-422 .............................................................................................. 26
7.2.2. MPK Interface to RS-485 .............................................................................................. 29
7.3. TERMINATION AND FAILSAFE BIAS .................................................................................... 31

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Revision 1.8 Page - iii
Figures
Figure 1-1: 7707DT Block Diagram.......................................................................................................................2
Figure 2-1: 7707DT Rear Panels ..........................................................................................................................3
Figure 2-2: Terminal Block Wiring.........................................................................................................................5
Figure 2-3: 7707DT Terminal Block Signal Connections......................................................................................6
Figure 2-4: 7707DT-GPIO Terminal Block Signal Connections............................................................................7
Figure 2-5: General Purpose Inputs and Outputs.................................................................................................9
Figure 2-6: Reproduction of Laser Certification and Identification Label............................................................10
Figure 4-1: Location of Status Indicators and Jumpers ......................................................................................13
Figure 4-2: Card-edge Menu Quick Reference...................................................................................................15
Figure 7-1: RS-422 Interface Example................................................................................................................25
Figure 7-2: RS-485 Interface Example................................................................................................................25
Figure 7-3: MPK Interface Example....................................................................................................................25
Figure 7-4: MPK Interface to RS-422 - Correct Method......................................................................................26
Figure 7-5: MPK Interface to RS-422 - Incorrect Method ...................................................................................27
Figure 7-6: MPK Interface to RS-422..................................................................................................................28
Figure 7-7: MPK Interface to RS-485..................................................................................................................29
Figure 7-8: MPK Interface to RS-485..................................................................................................................30
Tables
Table 1-1: Typical Application Configurations.......................................................................................................2
Table 4-1: Connecting RS422 Signals Between Master & Slave .......................................................................20
Table 6-1: VistaLINK®Monitored Parameters.....................................................................................................22
Table 6-2: VistaLINK®Controlled Parameters ....................................................................................................23
Table 6-3: VistaLINK®Traps ...............................................................................................................................23

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Page - iv Revision 1.8
REVISION HISTORY
REVISION DESCRIPTION DATE
0.1 Preliminary version Jul 2003
1.0 First Official release - added info on CARD ID jumper for single fiber versions Aug 2003
1.1 Updated 7707DT-GPIO pinout and expanded descriptions for this option; Feb 2005
Updated Vistalink related items; Removed Local Fault jumper
1.2 Added Master/Slave RS422 configuration May 2005
1.3 Updated safety section and added assembly and labeling sections Aug 2005
1.4 Included terminal block installation diagram and Appendix-MPK Router Control Oct 2007
1.5 Updated rear plate diagram Jan 2008
1.6 Added GPO Common Pin note, moved section 5 into section 2.3,
general format clean up. Aug 2008
1.7 Added table format throughout section 4.2 Apr 2009
1.8 Added information to section 4.2.3 regarding DI, DO, & DIO indications. Apr 2010
Information contained in this manual is believed to be accurate and reliable. However, Evertz assumes no responsibility for the use thereof nor for
the rights of third parties, which may be affected in any way by the use thereof. Any representations in this document concerning performance of
Evertz products are for informational use only and are not warranties of future performance, either expressed or implied. The only warranty offered
by Evertz in relation to this product is the Evertz standard limited warranty, stated in the sales contract or order confirmation form.
Although every attempt has been made to accurately describe the features, installation and operation of this product in this manual, no warranty is
granted nor liability assumed in relation to any errors or omissions unless specifically undertaken in the Evertz sales contract or order confirmation.
Information contained in this manual is periodically updated and changes will be incorporated into subsequent editions. If you encounter an error,
please notify Evertz Customer Service department. Evertz reserves the right, without notice or liability, to make changes in equipment design or
specifications.

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Revision 1.8 Page - v
Never look directly into an optical fiber. Non-reversible damage to the eye can
occur in a matter of milliseconds.

Do not hook up the 7707DT DWDM cards directly with a short fiber optic
cable. The 7707DT DWDM cards produce +7dBm of power, which will
damage the receiver if connected directly.

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7707DT RS-232/422/485 Fiber Data Transceiver
Page - vi Revision 1.8
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7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Revision 1.8 Page - 1
1. OVERVIEW
The 7707DT series Fiber Data Transceivers provide an economical method of transmitting multiple bi-
directional RS-232, RS-422, RS-485 data signals as well as Linear Time Code (LTC) over a single fiber
optic link. Another 7707DT Data Transceiver facilitates conversion back to RS-232, RS-422, RS-485 data
signals and LTC at the destination. The 7707DT-GPIO version provides additional channels of RS-232,
and General Purpose Input/Outputs (GPIO). A pair of 7707DT Data Transceivers permits bi-directional
data transmission over distances up to 50 Km, with minimum possible latency.
Two optical interface configurations allow the user to choose the optimal function /price /performance ratio
to suit a particular application. The standard configuration transmits and receives over a single fiber. The
dual fiber configuration is compatible with CWDM systems and is designed to transmit and receive over
separate fibers. The optical output of the 7707DT is available in 1310nm, 1550nm, or any one of up to
sixteen CWDM wavelengths.
Features:
•7707DT version transports four RS-422 or RS-485, three RS-232, and one LTC.
•7707DT-GPIO version transports four RS-422 or RS-485, eight RS-232, eight GPIO, one LTC.
•Selectable termination and failsafe bias settings for RS-422/485 data inputs.
•Selectable network timeouts for RS-485 accommodate twelve data rates.
•All configuration settings are controllable through the card-edge user interface, or VistaLINK®.
•Comprehensive signal and status monitoring via four-digit card-edge display, or VistaLINK®.
•Optical output wavelengths of 1310nm, 1550nm, and up to sixteen CWDM wavelengths
(ITU-T G.694.2 compliant).
•DWDM wavelengths also available (ITU-T G.694.1 compliant).
•Compatible with multi-mode and single-mode fiber (dual fiber version).
•SC/PC, ST/PC, or FC/PC fiber connector options.
•Fully hot swappable from front of frame.
•VistaLINK®enabled for remote monitoring and control when installed in 7700FR-C frame with
7700FC VistaLINK®Frame Controller.

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7707DT RS-232/422/485 Fiber Data Transceiver
Page - 2 Revision 1.8
Transmit Side Receive Side
Fiber Type Fiber Links Optical/Link Budget Ordering
Product Info TX Power Ordering Product Info RX Sensitivity Description
Multi-Mode 2 < 3km 7707DT13-F2 -7dBm 7707DT13-F2 -28dBm 1310nm on Tx & Rx fibers
Single-Mode 2 21dB/50km 7707DT13-F2 -7dBm 7707DT13-F2 -28dBm 1310nm on Tx & Rx fibers
Single-Mode 1 14dB/30km* 7707DT13 -10dBm 7707DT13 -24dBm 1310nm, bi-directional, one fiber
Single-Mode 1(WDM) 25dB/60km 7707DT13M-W -1dBm 7707DT15-W -26dBm 1310nm/1550nm, WDM, bi-
directional on one fiber
Single-Mode 1(CWDM) 24dB/80km** 7707DTxx-F2 0dBm 7707DTyy-F2 -28dBm Different CWDM wavelengths on Tx & Rx, with 8 channel CWDM
Mux/Demux**
Single-Mode 1(DWDM) 31dB/105km** 7707DTxxxx-F2 +7dBm 7707DTyyyy-F2 -28dBm Different DWDM wavelengths on Tx & Rx, with 8 channel DWDM
Mux/Demux**
*With >20dB return loss on fiber Interface Tx Power/Rx Sensitivity are nominal values ±1dBm
**Assume 8 Ch Mux/Demux loss of 3.5dB Fiber Loss = 0.4/0.3dB per km @ 1310nm/1550nm
Table 1-1: Typical Application Configurations
CONTROL/
INDICATION
VistaLINK
®
Interface
LOCAL
CONTROL
LOCAL
INDICATION
4 RS-422/485
LTC
3 RS-232
(7707DT)
or
8 RS-232
(7707DT-GPIO)
4 RS-422/485
LTC
Optical
Receiver
Optical
Transmitter
TD
M
Mux
Optical
Combiner
Fiber
Output
Fiber
Input/
Output
Fiber
Input
(Dual
Fiber -F2
Version)
(Single
Fiber
Version)
(Dual
Fiber -F2
Version)
8 GPI
(7707DT-GPIO)
8 GPO
(7707DT-GPIO)
TDM
Demux
3 RS-232
(7707DT)
or
8 RS-232
(7707DT-GPIO)
Figure 1-1: 7707DT Block Diagram

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Revision 1.8 Page - 3
2. INSTALLATION
The 7707DT series modules come with a companion rear plate that has multi-pin removable terminal
block connections, and an SC/PC (shown), ST/PC or FC/PC optical connector. For information on
mounting the rear plate and inserting the module into the frame see section 3 of the 7700FR chapter. The
following diagram shows four rear plate options.
Figure 2-1: 7707DT Rear Panels
2.1. OPTICAL CONNECTIONS
The 7707DT modules are designed to work with single-mode or multi-mode optical
fiber depending on the version ordered.

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7707DT RS-232/422/485 Fiber Data Transceiver
Page - 4 Revision 1.8
2.1.1. Single Fiber Versions
FIBER I/O: There is one SC/PC (shown), ST/PC or FC/PC female connector with the optical
input/output from the 7707DT. This connector should be connected to the matching
connector of a matching single fiber 7707DT module at the destination end with a suitable
fiber optic cable.
All single fiber versions of the 7707DT are designed to work with single-mode fiber optic
cable. Single fiber 7707DT and 7707DT-GPIO versions use 1310nm wavelengths. Single
fiber 7707DT-W and 7707DT-GPIO-W versions use 1310nm or 1550nm wavelengths and
have their associated transmit wavelength marked on the rear panel. Configuration of the
CARD ID jumper is required for single-fiber 7707DT and 7707DT-GPIO versions only. Refer
to section 5.1 for details about the CARD ID jumper.
2.1.2. Standard Dual Fiber Version (-F2 version)
FIBER IN: There is one SC/PC (shown), ST/PC or FC/PC female connector with the optical input to the
module. This connector should be connected to the FIBER OUT connector of a matching
dual fiber 7707DT-F2 module at the destination end with a suitable fiber optic cable. The
dual fiber 7707DT-F2 versions receive on wavelengths in the 1270 to 1610nm range
accommodating standard, CWDM or DWDM transmission schemes.
FIBER OUT: There is one SC/PC (shown), ST/PC or FC/PC female connectors with the optical output
from the module. This optical output is available in 1310nm, 1550nm, and up to sixteen
CWDM wavelengths (ITU-T G.694.2 compliant). This connector should be connected to the
FIBER IN connector of a matching dual fiber 7707DT-F2 module at the destination end with
a suitable fiber optic cable. The dual fiber 7707DT-F2 versions transmit on the wavelength
marked on the rear panel and are designed to work with either single-mode fiber optic cable.
The dual fiber 7707DT-F2 versions are compatible with multi-mode fiber when connected
directly to a companion 7707DT-F2 module.

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Revision 1.8 Page - 5
2.2. SIGNAL CONNECTIONS
2.2.1. Multi-Pin Terminal Block Installation
Insert Flat-Blade
Screwdriver
(less than 3.5mm wide)
Wire28–18AWG
Insert wire
28 – 18 AWG
Connect Terminal
Block to Rear Plate
as Shown
Rear Plate
Terminal Block
Terminal Block teeth
facing Right
Figure 2-2: Terminal Block Wiring
Simultaneously insert the signal wire (28-18 AWG) and screwdriver into the block as shown in Figure 2-2.
The screwdriver will push a tension clamp and will allow the insertion of the wire. Wire positions
correspond to detailed pin-outs shown on Figure 2-3 and Figure 2-4. Fasten screws to the rear plate at
the top and bottom once connected.
SERIAL DATA / LTC: This multi-pin terminal block has the connections for bi-directional serial data and
LTC. The serial data and LTC cables can be secured into the removable portion of the
terminal strips using a small screwdriver. The removable part of the terminal strip is then
inserted into the rear panel. Please refer to Figure 2-3 and Figure 2-4.
GPIO: On the 7707DT-GPIO versions, these multi-pin terminal blocks have the connections for
bi-directional General Purpose Inputs and Outputs (GPIO). The GPIO cables can be
secured into the removable portion of the terminal strips using a small screwdriver.

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7707DT RS-232/422/485 Fiber Data Transceiver
Page - 6 Revision 1.8
Figure 2-3 and Figure 2-4 show the pinout diagram for the terminal blocks of both the 7707DT and the
7707DT-GPIO versions. Please note that input/output functions of RS-422/485 pins change with
configuration. The following sections describe functionality of each pin designation:
7707DT
(+)RS-485
(+)RS-422
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
(+)RS-485
(+)RS-422
(+)RS-485
(+)RS-422
(+)RS-485
(+)RS-422
(-) RS-485
(-) RS-422
(-) RS-485
(-) RS-422
(-) RS-485
(-) RS-422
(-) RS-485
(-) RS-422
RS-232
RS-232
RS-232
GND
GND
GND
GND
(-) LTC
(+)LTC
(-) RS-422 OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
(-) RS-422
(-) RS-422
RS-232
RS-232
RS-232
GND
GND
GND
GND
(-) LTC
(+)LTC
CH 1
CH 2
CH 3
(+)RS-422
CH1
(-) RS-422
(+)RS-422
CH2
(+) RS-422
CH3
(+)RS-422
CH1
RS-422
CH2
RS-422
CH3
RS-422
CH4
RS-422
Figure 2-3: 7707DT Terminal Block Signal Connections

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Revision 1.8 Page - 7
7707DT-GPIO
(+)RS-485
(+)RS-422
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
(+)RS-485
(+)RS-422
(+)RS-485
(+)RS-422
(+)RS-485
(+)RS-422
(-) RS-485
(-) RS-422
(-) RS-485
(-) RS-422
(-) RS-485
(-) RS-422
(-) RS-485
(-) RS-422
RS-232
RS-232
RS-232
GND
GND
GND
GND
(-) LTC
(+)LTC
(-) RS-422 OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
(-) RS-422
(-) RS-422
RS-232
RS-232
RS-232
GND
GND
GND
GPO Common
(-) LTC
(+)LTC
CH 1
CH 2
CH 3
(+)RS-422
CH1
(-) RS-422
(+)RS-422
CH2
(+)RS-422
CH3
(+)RS-422
CH1
RS-422
CH2
RS-422
CH3
RS-422
CH4
RS-422
GPI1
GPI2
GND
GPI3
GPI4
GPI5
GND
GPI6
GPI7
GPI8
GND
RS-232 IN
CH4
RS-232 IN
CH5
RS-232 IN
CH6
GND
RS-232 IN
CH7
RS-232 IN
CH8
GPO1
GPO2
GND
GPO3
GPO4
GPO5
GND
GPO6
GPO7
GPO8
GND
RS-232 OUT
CH4
RS-232 OUT
CH5
RS-232 OUT
CH6
RS-232 OUT
CH7
GND
RS-232 OUT
CH8
Figure 2-4: 7707DT-GPIO Terminal Block Signal Connections
2.2.2. Serial Data Connections
+RS485/+RS422 IN: Positive RS-422 input, or RS-485 input/output. When the associated channel is
configured for use with RS-485, this pin becomes an RS-485 input/output. When the
associated channel is configured for use with RS-422, this pin becomes an RS-422 input.
-RS485/-RS422 IN: Negative RS-422 input, or RS-485 input/output. When the associated channel is
configured for use with RS-485, this pin becomes an RS-485 input/output. When the
associated channel is configured for use with RS-422, this pin becomes an RS-422 input.
+RS422 OUT:Positive RS-422 output. The RS-422 interface is usable while the associated channel is
configured for RS-422 use.

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7707DT RS-232/422/485 Fiber Data Transceiver
Page - 8 Revision 1.8
-RS422 OUT: Negative RS-422 output. The RS-422 interface is usable while the associated channel is
configured for RS-422 use.
2.2.3. LTC Connections
+LTC IN: Positive LTC input connection.
-LTC IN: Negative LTC input connection.
+LTC OUT: Positive LTC output connection.
-LTC OUT : Negative LTC output connection.
2.2.4. GPIO Connections (7707DT-GPIO Versions Only)
GPI1 thru GPI8: General purpose inputs to the 7707DT-GPIO. See section 3.4 for electrical
characteristics, and section 2.3 for connection details.
GPO1 thru GPO8: General purpose outputs from the 7707DT-GPIO. See section 3.5 for electrical
characteristics, and section 2.3 for connection details.
GPO COMMON: This is the common connection for the GPO contact closures of the 7707DT-GPIO.
See section 2.3 for connection details.
Please note that the GPO Common Pin is on a separate connector.
2.3. GENERAL PURPOSE INPUTS AND OUTPUTS
The 7707DT-GPIO provides the user with 8 General Purpose Inputs (GPI’s) and 8 General Purpose
Outputs (GPO’s). Figure 2-5 shows the input and output circuitry. Refer to sections 3.4 and 3.5 for
electrical specifications. The GPI input stage uses opto-isolators for isolation. The GPO output stage uses
dry contact relay closures. A typical application providing a contact closure or transistor connection to
ground would activate the GPI inputs.

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Revision 1.8 Page - 9
Current
Limiting
(10mA)
GPI 1
GPI 2
Current
Limiting
(10mA)
Internal +5V
GND Frame
Ground
GPO 1
GPO 2
GPO COMMON
GPI's GPO's
Figure 2-5: General Purpose Inputs and Outputs
Please note that the GPO Common Pin is on a separate connector.
2.4. CARE AND HANDLING OF OPTICAL FIBER
2.4.1. Safety
!
CLASS 1 LASER PRODUCT
Background colour: yellow
Triangular band: black
Symbol: black
2.4.2. Assembly
Assembly or repair of the laser sub-module is done only at Evertz facility and performed only by qualified
Evertz technical personnel.

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Page - 10 Revision 1.8
2.4.3. Labeling
Certification and Identification labels are combined into one label. As there is inadequate space on the
product to place the label, it is reproduced here in the manuals.
•There is no date of manufacture on this label as it can be traced by the bar code label placed on
the Printed circuit board of each Evertz plug-in module
•The Model number is one of: 7707DT-13, 7707DT13-GPIO, 7707DT13M-W, 7707DT13M-W-GPIO,
7707DT15-W, 7707DT15-W-GPIO, 7707DT13-F2, 7707DT13-F2-GPIO
•7707DTxx (xx = 27, 29, 31, 33, 35, 37, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61)
7707DTDyyy (Dyyy represents ITU Grid Channel: D200, D210, D220, D230, D240, D250, D260,
D270, D280, D290, D300, D310, D320, D330, D340, D350, D360, D370, D380, D390, D400,
D410, D420, D430, D440, D450, D460, D470, D480, D490, D500, D510, D520, D530, D540,
D550, D570, D580, D590, D600)
Figure 2-6: Reproduction of Laser Certification and Identification Label
2.4.4. Handling and Connecting Fibers

Never touch the end face of an optical fiber. Always keep dust caps on optical fiber
connectors when not connected and always remember to properly clean the optical
end face of a connector before making a connection.
The transmission characteristics of the fiber are dependent on the shape of the optical core and therefore
care must be taken to prevent fiber damage due to heavy objects or abrupt fiber bending. Evertz
recommends that you maintain a minimum bending radius of 5 cm to avoid fiber-bending loss that will
decrease the maximum attainable distance of the fiber cable. The Evertz fiber optic modules come with
cable lockout devices, to prevent the user from damaging the fiber by installing a module into a slot in the
frame that does not have a suitable I/O module. For further information about care and handling of the
fiber optic cable see section 3 of the Fiber Optics System Design section of this manual binder.

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Revision 1.8 Page - 11
3. SPECIFICATIONS
3.1. RS-422/485 SERIAL DATA
Number of Signals: 4 Inputs/Outputs
Connector: Multi-pin Removable Terminal Block
Signal Type: RS-485 or RS-422 (selectable)
Input Termination: 110Ωor Open (selectable)
Input Failsafe Bias: 200mV (3.3mA into 60Ω) or None (selectable)
Bit Rate (max):
RS-422: 460Kb/s
RS-485: 1.2Kb/s, 2.4Kb/s, 4.8Kb/s, 9.6Kb/s, 19.2Kb/s, 38.4Kb/s, 57.6Kb/s,
76.8Kb/s, 115Kb/s, 153Kb/s, 230Kb/s, or 460Kb/s (selectable)
3.2. RS-232 SERIAL DATA
Number of Signals: 3 Inputs/Outputs
Connector: Multi-pin Removable Terminal Block
Signal Type: RS-232
Bit Rate (max): 115Kb/s
3.3. LTC DATA
Number of Signals: 1 Input/Output
Connector: Multi-pin Removable Terminal Block
Signal Type: SMPTE 12M Linear Time Code
Input Level: 0.2 to 4V p-p (balanced or unbalanced)
Rise/Fall Times: 40µs ±10µs
Output Level: 1V p-p nominal (balanced)
3.4. GENERAL PURPOSE INPUTS (7707DT-GPIO ONLY)
Number of Signals: 8 Inputs
Connector: Multi-pin Removable Terminal Block
Type: Opto-isolated, Active low
Input Voltage:
Safe Voltage Range: -20V to +10V
Off Condition (min): +3.5V
On Condition (max): +2.5V (active low)
Input Current (min): 1mA
Input Current (max): 10mA (internally limited)
3.5. GENERAL PURPOSE OUTPUTS (7707DT-GPIO ONLY)
Number of Signals: 8 Outputs
Connector: Multi-pin Removable Terminal Block
Output Type: Dry contact relay closure, normally open
Output Current (min): 100mA

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7707DT RS-232/422/485 Fiber Data Transceiver
Page - 12 Revision 1.8
3.6. OPTICAL INPUT/OUTPUT
Connector:
Single Fiber version: 1 Bi-directional optical connector: SC/PC, ST/PC or FC/PC female housing
Dual Fiber (F2) version: 2 optical connector: SC/PC, ST/PC or FC/PC female housing
Maximum Input Power:
Single fiber versions: 0 dBm
Dual fiber (F2) versions: 0 dBm
Input Optical Sensitivity:
Single fiber versions: -24 dBm
Single fiber (W) versions: -26 dBm
Dual fiber (F2) versions: -28 dBm
Fiber Size and Type:
Single Fiber versions: 9 µm core / single mode
Dual Fiber (F2) versions: 9 µm core / single-mode on TX, 62.5 µm core / multi-mode on RX
Output Wavelengths:
Standard: 1310nm, 1550nm (nominal)
CWDM: 1270nm to 1610nm (ITU-T G.694.2 compliant)
DWDM: 1530nm to 1560nm (ITU-T G.694.1 compliant)
Output Power:
Single fiber version:
1310nm FP (Standard): -10 dBm ±1dBm
1310 & 1550 (W Versions): -1 dBm ±1dBm
Dual fiber version:
1310nm FP (Standard): -7 dBm ±1dBm
CWDM DFB: 0 dBm ±1dBm
DWDM DFB: +7 dBm ±1dBm
3.7. ELECTRICAL
Voltage: 12V DC
Power (max): 6 Watts (Non DWDM Laser)
8 Watts (DWDM Laser)
EMI/RFI: Complies with FCC regulations for class A devices
Complies with EU EMC directive
3.8. PHYSICAL
7700 Frame Mounting:
Number of Slots:
7707DT: 1
7707DT-GPIO: 2
7701 Frame Mounting:
Number of Slots:
7707DT: 1
7707DT-GPIO: 1

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Revision 1.8 Page - 13
4. CARD-EDGE MONITORING AND CONTROL
The 7707DT has eight LED status indicators and a 4-digit dot-matrix display on the front card-edge to
show operational status of the card at a glance. The card-edge pushbutton and toggle switch are used to
select various indications to the dot-matrix display and LED’s. Figure 4-1 shows the locations of the
indicators and pushbutton.
FRAME STATUS
ON/OFF
/ MODULE OK
LOCAL FAULT
LED 1
SERIAL
RUN/UPGRADE
SERIAL
LED 2
LED 3
LED 4
LED 5
LED 6
LED 7
LED 8
CARD ID
A/ B
(Single-fiber Versions)
LED 9
LED 10
LED 11
LED 12
LED 13
7707DT-GPIO
Only
Figure 4-1: Location of Status Indicators and Jumpers
4.1. STATUS INDICATOR LEDS
LOCAL FAULT: This red LED indicates poor module health. Three conditions could cause this fault
indication to be active: A link with a companion 7707DT has not been achieved,
operation of the output laser is erroneous, or if a card power fault exists (i.e. a blown
fuse). The LOCAL FAULT indication can also be reported to the frame by setting the
FRAME STATUS jumper.
MODULE OK: This green LED indicates good module health. It will be on while a link is maintained
with a companion 7707DT, the output laser is operating properly, and the card
power is good.

7700 MultiFrame Manual
7707DT RS-232/422/485 Fiber Data Transceiver
Page - 14 Revision 1.8
LED 1 to LED 8/13: These green LED’s indicate the signal status of the RS-422/485, RS-232, and LTC
channels. Selectable modes accommodate signal presence indication of input data,
output data, or both. Selectable modes of signal status indication are described in
section 4.2.3 of this manual. LED designations are as follows:
7707DT Version 7707DT-GPIO Version
LED 1 RS-422/485 Channel 1
LED 2 RS-422/485 Channel 2
LED 3 RS-422/485 Channel 3
LED 4 RS-422/485 Channel 4
LED 5 RS-232 Channel 1
LED 6 RS-232 Channel 2
LED 7 RS-232 Channel 3
LED 8 LTC
LED 1 RS-422/485 Channel 1
LED 2 RS-422/485 Channel 2
LED 3 RS-422/485 Channel 3
LED 4 RS-422/485 Channel 4
LED 5 RS-232 Channel 1
LED 6 RS-232 Channel 2
LED 7 RS-232 Channel 3
LED 8 RS-232 Channel 4
LED 9 RS-232 Channel 5
LED 10 RS-232 Channel 6
LED 11 RS-232 Channel 7
LED 12 RS-232 Channel 8
LED 13 LTC
The 7707DT-GPIO provides additional status indicator modes, where LED1 through
LED8 describe the states of the respective GPI or GPO channels.
CONTROL: This yellow LED is no longer considered by recent code versions, and if installed,
should be disregarded by the user.
4.2. CARD-EDGE DISPLAY AND CONTROLS
Additional signal and status monitoring is provided via the 4-digit dot-matrix display located at the card-
edge. The card-edge pushbutton and toggle-switch are used to navigate through the display menu. Figure
4-2 provides a quick reference to the display menu structure.
Pressing the pushbutton advances the display to the next menu level. The toggle-switch may then be used
to move up or down through selections of that menu level. Select BACK to return to the previous menu
level.
If a specific menu selection has a configuration value associated with it, then this may be changed using
the toggle switch. Pressing the pushbutton will apply the displayed value and return you to the previous
menu level.
The most recent user selection will be maintained in non-volatile memory in the event of power loss to the
module.