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Fiber Optic Multiplexor FMUX-4
(rack-mount model 1U)

Discontinued, recommended replacement is: FMUX/M, FMUX/S

Specifications
Optical Transceiver Parameters
Documentation

Fiber Optic Multiplexor FMUX-4 Features:
  • Transmittion of four E1 channels via fiber optic link
  • Models with Ethernet 10/100Base-T channel or V.35/RS-530/RS-449/RS-232 channel
  • Single mode or multimode fiber
  • Distance up to 170 km
  • E2 link interface option
  • Compliance with ITU G.703, G.742, G.823, G.955
  • Local and remote loopbacks
  • Integrated BER tester
  • Console RS-232 port
  • Optional SNMP Ethernet 10Base-T control port
  • Remote management
  • Dry contacts alarm interface
  • Stand-alone or rack-mount 1U
  • AC or DC power
  • Certificate N ОС-2-СП-1458 of Russian Ministry of Communications

FMUX 4E1 is a multiplexor for transmitting 4 E1 channels over the fiber optic link or E2 link. All channels have independent sync signals with their own frequencies.

The device has optional channel (Ethernet 10/100Base-T or V.35/RS-530/RS-232/X.21). With this option box models have 3 E1 channels and one optional channel, rack mount models have 4 E1 channels and one optional channel (console configurable 4 E1 or 3 E1 + optional channel modes).

Models with Ethernet 10/100Base-T port with the "-ETV" order code support VLAN protocol.

FMUX has LEDs for channels ready state, optic transceiver operability, loopbacks enable state and test mode indication. Internal loopbacks and integral BER tester operation are controllable by the console port located on front panel or by switches. BER tester meters bit error rate in optic link using permanent or pseudo random code in compliance with the ITU-T O.151 Recommendation (test sequence length equals to 215-1=32767 bits).

Device state can be monitored by SNMP using separate Ethernet 10Base-T port.

Remote device management is available by remote login feature. Service data exchange is supported by additional service channel using same optic link.

Alarm indication relay with "dry contacts" interface in compliance with the ITU-T G.742 Recommendation, paragraph 10, is supplied.

The firmware of the device can be updated by user.


Specifications

Interface E1 (2048 kbit/sec)
Connector Type RJ-48 (female 8 pins)
Line Code HDB3
Framing Transparent; both framed and unframed modes supported
Error Detection Bipolar Violation
Line Impedance 120 Ohm (Twisted Pair)
Receive Signal Attenuation Range From 0 to -36 dB
Input Signal Measurement Precision 2 dB
Jitter Attenuator In transmit path
Overvoltage Protection TVS
Overcurrent Protection Fuse
Interface Ethernet
Interface 10/100Base-T
Connector Type RJ-45 (female)
Data rate 8328, 6246, 4164 or 2048 kbit/sec
Mode 100 Mbps Full-duplex,
100 Mbps Half-duplex,
10 Mbps Full-duplex,
10 Mbps Half-duplex,
or Autonegotiation
Address table size 15000 MAC addresses
Maximum packet size 4224 bytes, including MAC header
Protocols Transparent or Cisco-HDLC bridging IEEE protocol, automatically selected
Quality of Service 8 priority levels
Alarm Interface
Connector Type 9 pin DB9 female
Relay Contact Current Up to 250 mA
Relay Contact Voltage Up to 100 VDC
Control interface
Connector Type RS-232 DCE, DB-9 (female)
Protocol Asynchronous, 9600 bit/sec, 8 bit/symbol, 1 stop bit, no parity
Modem Control Signals DTR, DSR, CTS, RTS, CD
Diagnoctic modes
Loopbacks Local, Remote
BER Tester Built-in
Control By switches on front panel or via control port RS-232
Physical
Dimensions 444 mm x 262 mm x 44 mm
Weight 3400 g
Power source
AC power source 176-264 V, 50 Hz
DC power source 36-72 V
Power 12.5 VA Max
Environment
Temperature 0° - 50°С
Humidity 0 to 80 %, non-condensing
Physical
Dimensions 444 mm x 262 mm x 44 mm
Weight 3400 g
Power source
AC power source 176-264 V, 50 Hz
DC power source 36-72 V
Power 12.5 VA Max
Environment
Temperature 0° - 50°С
Humidity 0 to 80 %, non-condensing

Optical transceiver parameters

Specification L15 L13X D13 D13S D85
Wavelength 1550 nm 1300 nm 1300 nm 1300 nm 850 nm
Fiber Type Single-mode Single-mode Single-mode Single-fiber, Single-mode Multimode
Light Source Laser Diode Laser Diode LED LED LED
Optical Output Power (avg) -3 dBm -3 dBm -19 dBm -17 dBm -20 dBm
Optical Power Monitoring (per G.956) Yes Yes No No No
Min. Receiver Input Power (10-10 BER) -39 dBm -39 dBm -38 dBm -36 dBm -39 dBm
Min. Cable Length Limitation No No No No No
Optic Cable Power Budget 34 dB 34 dB 17 dB 17 dB 18 dB
Max. Optic Cable Length (depends on optic cable) 85 - 170 km 56 - 85 km 28 - 42 km 28 - 42 km 3.5 - 5 km

Documentation

Some of the documents are in Adobe® Acrobat® Reader® format

PDF  FMUX-4 with four E1 ports and SNMP (rack mount) - User's Manual in Russian
PDF  FMUX-4 with four E1 ports, one Ethernet 10/100Base-T ETV port and SNMP (rack mount) - User's Manual in Russian
PDF  FMUX-4 with four E1 ports, one V.35/RS-530/RS-232/X.21 port and SNMP (rack mount) - User's Manual in Russian
MIB  MIB-files for SNMP-management

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