Comnet FDX55M1 User manual

FDX55 SERIES
RS-232/422 DROP AND REPEAT
DATA TRANSCEIVER
INSTALLATION INSTRUCTIONS
ADDENDUM
The Comnet FDX55 Series has recently undergone some enhancements.
The three enhancements are summarized here. Please verify which version
of the FDX55 you have by examining the front and rear panels for the following
changes.These changes are reflected in this Installation and Operation
manual and will allow you to correctly configure the device for proper operation.
1) The silk screened printing on the front of each FDX55 Series device had
previously shown a “JABBER RESET” button. The silk screened printing was changed
and now reads “ANTI-STREAMING RESET” for this button.
2) Linking portJ3 originally used an RJ-45 receptacle.
This nowhas been changed to an RJ-11 receptacle.
3) The FDX55 was originally designed as a DCE device with a switch labeled“NA/DCE”
toallow for possible future use as a true “DCE/DTE” switch. The devicehas now changed to
allow for the selection of DCE or DTE via the front panel switch labeled DTE/DCE.
The setting of this switch is detailed later in this manual.

Installation and Operation Instructions
for the following ComNet™Model Numbers:
FDX55M1, FDX55M1AE, FDX55M1BE, FDX55M2, FDX55M2E,
FDX55S1, FDX55S1AE, FDX55S1BE, FDX55S2, FDX55S2E
RS-232/422 DROP AND REPEAT
DATA TRANSCEIVER
BLACK WITH WHITE STRIPE
BLACK
DATA
CONNECTOR
2-FIBER
LEDS: RED = “No Activity”
GRN = “Activity”
NOTE: RED DOES NOT MEAN “Error”
X
X
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Page 1
NOTE: Remove Electrical
Connector for
Rack Mount Units
4-FIBER
FIG. 1 FIG. 2 FIG. 3
FIG. 4
ANTI-STREAMING
SWITCH: Anti-Streaming Timer (See Pg. 11, Fig.18)
J1 CONNECTOR: Input/Output Connector (See Pg. 8, Fig. 10)
J3 CONNECTOR/ Connects twoFDX55 together electrically.
A/B SWITCH: one must be set for “A” and one for “B”.
Factory Default:“A” (See Pg. 8, Fig. 11)
DATA SWITCH: Selects connections between optical and electrical ports.
(See Pg. 10, Fig. 16 and Fig. 17)
LINKING
PORT

FDX55 SERIES
RS-232/422 DROP AND REPEAT
DATA TRANSCEIVER
INSTALLATION INSTRUCTIONS
1) ANTI-STREAMING SELECT SWITCH
The anti-streaming function is provided to protect the communications channel in the
event that a controller should go into a streaming or data-storming condition.
If the anti-streaming is to be used, it must be set to a setting that will exceed the longest
possible data transmission time that will exist on that channel. It should be noted that in
most installations, the anti-streaming will not be utilized and the switch should be left in the
factory default “Off” position. See Pg. 11, Fig.18.
2) DTE/DCE SELECT SWITCH
The purpose of this switch is to transpose the RS-232 data transmit and data receive signals.
Normally, this switch will be left in the factory default “DCE” position.
See Pg. 9, Fig.12 through Fig. 15.
3) LINKING PORT, J3
J3 is an RJ-11 connector utilized for electrically connecting two co-located FDX55 units.
For example, at some point on an east-to-west communications channel, it may be desired to
extend the channel in the north-to-south direction. Asecond FDX55 may be added in the same
cabinet as another existing FDX55, and the second unit would be utilized for extending the
channel in the north-to-south direction. A conventional straight-through interconnect cable
terminated at each end with RJ-11 connectors is required when connecting the two FDX55
units. It is desirable to keep the length of this cable as short as possible, so as to minimize
any possibility of stray electrical pick-up corrupting the quality of the data, which could
result in data errors. See Pg. 8, Fig. 11 and Pg. 10, Fig. 17.
4) A/B SELECT SWITCH
The purpose of this switch is to transpose the data transmit and data receive signals when
connecting two co-located FDX55 units utilizing the J3 expansion port and a straight-through
data interconnect cable. One FDX55 will be set to “A” and the second FDX55 will be set to “B”.Ifa
cross over cable is used, then both FDX55s would be set to “A”. This interconnect cable should be
kept as shortas possible toeliminateEMI/RFI noise injection. Refer to Figure 1 for
typical configuration. Factory default for this switch is “A”. See Pg. 1, Fig.1.
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Power Sources - The productshould only beoperated from the recommended power source.
Use only a UL Class 2 indoor/dry or Class 3 outdoor/wet power supply.
WARNING: Unit is to beused with a Listed Class 2 or LPS power supply rated 9-12 VDC @ 1A.
WARNING: This unit should beinstalled in a restricted access location; available through the use
of a lock and key or other means of security. Access should be limited to service personnel who
have been instructed about the reasons for the restrictions to the location. Any and all
precautions should be taken and controlled by the authority responsible for the location.

FDX55 TYPICAL REPEATER CONFIGURATION
FDX55M1AE
FDX55S1AE
FDX55M1
FDX55S1
FDX55M1
FDX55S1
FDX55M1BE
FDX55S1BE
TYPICAL
DATA DATADATA DATA
FDX55M1AE
FDX55S1AE
FDX55M1BE
FDX55S1BE
FDX55 TYPICAL POINT-TO-POINT
CONFIGURATION
DATADATA
Master Controller Local Controller
Master Controller Local Controller
Local Controller Local Controller
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FIG. 5

FDX55 ALTERNATE DROP AND REPEAT CONFIGURATION
FDX55M1
FDX55S1
FDX55M1
FDX55S1
FDX55M1
FDX55S1
FDX55M1
FDX55S1
TYPICAL
DATA DATA DATA DATA
FDX55M1
FDX55S1
FDX55M1
FDX55S1
FDX55 ALTERNATE POINT-TO-POINT
CONFIGURATION
DATA
DATA
Master Controller
Master Controller
Local Controller Local Controller Local Controller
Local Controller
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FIG. 6

FDX55M2 TYPICAL DROP AND REPEAT CONFIGURATION
FDX55M2E
FDX55S2E
FDX55M2
FDX55S2
FDX55M2
FDX55S2
FDX55M2E
FDX55S2E
TYPICAL
DATA DATA DATA DATA
FDX55M2E
FDX55S2E
FDX55M2E
FDX55S2E
FDX55M2 TYPICAL POINT-TO-POINT
CONFIGURAT ION
DATADATA
Master Controller Local Controller
Master Controller Local Controller
Local Controller Local Controller
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FIG. 7

FDX55M2 ALTERNATE DROP AND REPEAT CONFIGURAT ION
FDX55M2
FDX55S2
FDX55M2
FDX55S2
FDX55M2
FDX55S2
FDX55M2
FDX55S2
TYPICAL
DATA DATA DATA DATA
FDX55M2
FDX55S2
FDX55M2
FDX55S2
FDX55M2 ALTERNATE POINT-TO-POINT
CONFIGURAT ION
DATADATA
Master Controller Local Controller
Master Controller Local Controller
Local Controller Local Controller
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FIG. 8

FDX55M1AE
FDX55S1AE
FDX55M1
FDX55S1
FDX55M1
FDX55S1
FDX55M1BE
FDX55S1BE
TYPICAL
DATA DATADATA DATA
Master Controller Local Controller Local Controller Local Controller
FDX55M1AE
FDX55S1AE
FDX55M1
FDX55S1
FDX55M1
FDX55S1
FDX55M1BE
FDX55S1BE
TYPICAL
DATA DATADATA DATA
Master Controller Local Controller Local Controller Local Controller
Page 7
FDX55 TYPICAL EXPANSION PORT J3 CONNECTION
A/B SWITCH = “A”
RJ-11 STRAIGHT
THROUGH CABLE
A/B SWITCH = “B”
FIG. 9

FDX55 SERIES
RS-232/422 DROP AND REPEAT
DATA TRANSCEIVER
INSTALLATION INSTRUCTIONS
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FIG. 10
FIG. 11

FDX55 SERIES
RS-232/422 DROP AND REPEAT
DATA TRANSCEIVER
DCE
Device*
straight through
cable*
FDX55 Series
Device
DCE/DTE
set at “DTE”
DTE
Device*
straight through
cable*
FDX55 Series
Device
DCE/DTE
set at “DCE”
DCE
Device*
null modem or
crossover cable*
FDX55 Series
Device
DCE/DTE
set at “DCE”
DTE
Device*
null modem or
crossover cable*
*equipment supplied by others
FDX55 Series
Device
DCE/DTE
set at “DTE”
Data Input (RX)
Data Output (TX)
Data Input (RX)
Data Output (TX)
Data Output (TX)
Data Input (RX)
Data Output (TX)
Data Input (RX)
INSTALLATION INSTRUCTIONS
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FIG. 12
FIG. 13
FIG. 14
FIG. 15

FDX55 SERIES
RS-232/422 DROP AND REPEAT
DATA TRANSCEIVER
INSTALLATION INSTRUCTIONS
Communication Networks
3 Corporate Drive • Danbury, CT 06810 • USA
Tel: [phone] • Toll Free: 1-888-678-9427
www.comnet.net
A
A
B
B
DATA SWITCH
FUNCTION
ON
#1
#2
#3
#4
#5
#6
IN
Aoptical
Boptical
Boptical
J1-DB25
Aoptical
J1-DB25
OUT
J1-DB25
J1-DB25
Aoptical
Aoptical
Boptical
Boptical
SW
OPTICAL
A
OPTICAL
B
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FIG. 16
FIG. 17

FDX55 SERIES
RS-232/422 DROP AND REPEAT
DATA TRANSCEIVER
INSTALLATION INSTRUCTIONS
Communication Networks
3 Corporate Drive • Danbury, CT 06810 • USA
Tel: [phone] • Toll Free: 1-888-678-9427
www.comnet.net
ANTI-STREAMING
ANTI-STREAMING
TIMER
OFF
(Factory Default)
4SECONDS
8SECONDS
16 SECONDS
32 SECONDS
64 SECONDS
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Page 11
ANTI-STREAMING TIMER: Times RTS (Request to Send). If RTS is asserted for a time greater than
the Anti-Streaming settings, the electrical input is turned OFF permanently.
To RESET: Press the RESET button on the front panel.
RTS/CTSINDICATORS
RTS: RED RTS is OFF
GRN RTS is ON
CTS: RED CTS is OFF
GRN CTS is ON
Note: Ifthe RTSsignal is turned ON for a time greater than the Anti-Streaming Time Setting, then the RTS
will beON, but the CTSwill be RED (Off) and the FAIL LIGHT will be GRN (Failure Asserted).
When the RESET button is pressed, the FAIL LIGHT switches to RED and the RTS/CTS works again.
FIG. 18