fh-e_fl-e
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E3/T3 Fiber Optic ModemMultimode or Singlemode
FH-EFL-E
q 850 or 1300 nm MM,1300 or 1550 nm SM
q Data rates:E3: 34.368 Mbps
T3: 44.736 Mbps
q G.703, E3 or T3, 75Wunbalanced (BNC)
q LED indicators,loops and BERT
q Standalone units andrack mount cards forUni-Rack concept
q
NMS/SNMP
q WDM Fiber Doubler
The E3/T3 Fiber Optic Modems FH-E and FL-E convert the E3/T3 copper
interface to fiber optic signals and vice versa. One of the device's advan-
tages is the data transparency, which allows an independence from the
application and a flexible employment. By using the benefits of fiber optic
technology, a low bit error rate, high reliability, galvanic separation of the
concerned units and high transmission distances are ensured.
The FH-E and FL-E are used in the WAN area where the interconnection
of LANs becomes necessary. In this case they serve as an E3/T3 extensi-
on. Furthermore, they allow the point-to-point connection between PDH
multiplexers via fiber optic cables.
Local and remote loops can be activated by pushbutton providing a suita-
ble tool for error source isolation.For monitor and control purposes, a con-
trol processor is available which can be accessed via VT100 or SNMP.The
optional Fiber Doubler increases the existing cable capacity by transmit-
ting and receiving data on a single fiber instead of two.
The modems FH-E and FL-E can be delivered as standalone units or as
rack mount cards supporting the PANDATEL universal rack concept.
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PGF-No.
48GB
Edit
8831
Rev.
01
AC
CIL
Specifications subject to change without prior notice.
PANDATEL
ORDER KEY
E3/T3 Fiber Optic Modem
Fud-Eo-x/(s)lcGB-p
u: Unit Type ExtensionH Mul timode uni tL Singlemode unit
d: DesignT Standalone uni tR Rack mount card
o : Operat ion ModeT 44.736 Mbps (T3)E 34.368 Mbps (E3)
x: Functional ExtensionC Control port /NMSY WDM
l: Fiber Optic Line Specification8 850 nm MM3 1300 nm MM (STo nly)9 1300 nm SM LED4 1300 nm SM Laser6 1550 nm SM Laser(WDM only)B 1550 nm SM DFB Laser
c: Fiber Optic ConnectorS SCT STF FC-PC
GB: Data Interface SpecificationGB G.703, BNC
p: Power Supp lyE 230 V AC EuroB 230 V AC Br itishA 230 V AC AustralianU 115 V AC USZ 24 V DCV 48 V DC galv. sep.R Power supplied via 19 rack
TECHNICAL DATA
Generalq LED indicators for TXD, RXD, RTS,
FO sync and loopsq Digital, line and remote loopq Dimensions of the standalone unit:
40 x 145 x 225 mm (H x W x D)
Fiber Optic Sideq Singlemode (SM):1300 nm or 1550 nm
LED or Laser, 9/125 mq Multimode (MM):850 nm or
1300 nm LED, 62.5/125 mq ST, SC or FC-PC connectors
Data Port Specificationq Clock modes:
Internal, external and remoteq Data rates: E3:34.368 Mbps
T3: 44.736 Mbps
Interfaces:q G.703, E3 or T3,
75 W unbalanced (BNC)
Optionsq Relay contact for alarmq NMS/SNMP for management and
diagnosticsq 24 or 48 V DC power supplyq WDM Fiber Doublerq Laser or High Power Laser
for extended range
For further information about this product lineplease contact our distributor:
AP48GB/6B18/DMA
FO Modem FO Modem
E3
E3
E3
FO
Network
Termination
Network
Termination
Application Example
ON
OUT IN
F OS R EMR EXT
DL
T L O C I N T
R X T X
LL
I/F
FO
DATA LINK CLOCK LOOP
FH/FL
ON
OUT IN
F OS R EMR EXT
DL
T L O C I NT
R X T X
LL
I/F
FO
DATA LINK CLOCK LOOP
FH/FL
PTT
NT
Router
FO Modem FO Modem
E3
ON
OUT IN
F OS R EMR EXT
DL
T L O C I N T
R X T X
LL
I/F
FO
DATA LINK CLOCK LOOP
FH/FL
ON
OUT IN
F OS R EMR EXT
DL
T L O C I NT
R X T X
LL
I/F
FO
DATA LINK CLOCK LOOP
FH/FL
Router
NT
FO
Output power(selectable)
Receiveroperation range
Fiber opticbudget
Max. distance@ fiber type@ fiber att.
Up to 1 km162.5/125 m3.6 dB/km
Up to 5 km162.5/125 m1.6 dB/km
Up to 40 km19/125 m0.4 dB/km
Up to 60 km19/125 m0.4 dB/km
820 nm MMLED
-14 or -17 dBm
-16...-29 dBm
12 dB
1300 nm MMLED
-18 or -20 dBm
-18...-29 dBm -14...-30 dBm -14...30 dBm
8 dB 16 dB 25 dB
1300 nm SMLED
1300 nm SMLaser
-14 or -18 dBm -5 or -12 dBm
Optical Data
Up to 30 km19/125 m0.3 dB/km
-14...30 dBm
25 dB
1550 nm SMLaser
-5 or -12 dBm
(1) due to dispersion