LaserBit LE-PDH-LAN User manual

Combiner
PDH - LAN
LaserBit Communications Corp.
1037 Budapest, Kunigunda u. 45.
HUNGARY
Tel.: [phone], fax: [phone]

LaserBit Communications Co. Users’ manual of Combiner v.:3.0
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Table of contents
TABLE OF CONTENTS............................................................................................................ 2
ABOUT THE MANUAL ............................................................................................................ 3
ABOUT THE COMBINER ........................................................................................................ 3
FEATURES:................................................................................................................................3
MODULE DESCRIPTION........................................................................................................ 4
E1 MODULE...............................................................................................................................4
LED description:..................................................................................................................4
G.703 pin-layout description.................................................................................................5
G.703 120Ohm connector pin out(RJ45).............................................................................................5
G.703 75Ohm Connection Pinout (BNC)..............................................................................................5
LAN MODULE............................................................................................................................5
LED description...................................................................................................................6
RJ45 connector pin-layout....................................................................................................6
FIBRE MODULE ...........................................................................................................................7
LED Description...................................................................................................................7
JUMPER SETTINGS ............................................................................................................... 8
SYSTEM LAYOUT................................................................................................................. 11
WARRANTY CONDITIONS .................................................................................................. 12

LaserBit Communications Co. Users’ manual of Combiner v.:3.0
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About the manual
Copyright © 2003 LaserBit Communications Corp. All rights reserved.
No part of this documentation may be reproduced in any form or by any means or
used to make any derivative work (such as translation, transformation or adoption)
without written permission from LaserBit Communications Corp.
LaserBit Communications Corp. reserves the right to revise this documentation
and to make changes in content from time to time without obligation on the part of
LaserBit Communications Corp. to provide notification of such revision or
change.
LaserBitCommunications Corp. provides this documentation without warranty,
term, or condition of any kind, either implied or expressed, including but not limited
to, the implied warranties, terms of conditions of merchantability, satisfactory quality,
and fitness for a particular purpose. LaserBit Communications Corp. may make
improvements or changes in the product(s) described in this documentation at any
time.
This Manual represents information required to install, configure and use the
LaserBit LE- PDH-LAN Combiner.
Trade Marks
LaserBit is a registered trade mark of LaserBit Communications Corp. All other
trademarksbelong to their respective owners.
About the combiner
The LaserBit LE-PDH-LAN combiner provides cost effective solution for combining
the Telephone networks through a PBX with a ITU-T G.703 E1 output and local
computer networks on 100BaseT 100 Mbps IEEE 802.3.
Combiner is providing two different connection points for Ethernet 10/100 Mbps and
E1 2,048 Mbps. On this way it provides two different connections on the same
output. The output is a 150Mbps Fiber, which provides different installation
distances.
Features:
- Easy to use
- Simplified connection to meet all the requirements.
- Full Duplex 100Mbps for LANs at the speed of 80Mbps
- E1 connection
- 150Mbps fibre output

LaserBit Communications Co. Users’ manual of Combiner v.:3.0
Module Description
E1 module
LaserBit combiner offers 2,048Mbps speed connection on the ITU-T G.703
interface. Either 75Ohm BNC or 120Ohm RJ45. Built in line coding is switch able to
HDB3 with a jumper inside the device (pls see the jumper description part of this
manual)
Also you can change between 120Ohm and 75 Ohm. With BNC or RJ 45 connector!
Local TX onLocal AIS
G.703 75Ohm
connector
Local RX on
G703 75 Ohm
Remote RX on Remote AIS Figure 1 G.703 connector
Remote TX on
LED description:
• Local RX - there is incoming signal on G.703 local port
• Local TX - there is outgoing signal on G.703 local port
• Local AIS – Incoming AIS on G.703
• Remote RX – Remote side responding
• Remote TX - Remote side sending valid information
• Remote AIS – Remote side sending AIS to the local side
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LaserBit Communications Co. Users’ manual of Combiner v.:3.0
G.703 pin-layout description
G.703 120Ohm connector pin out(RJ45)
Pin out Connection
Pin 1 RXA
Pin 2 RXB
Pin 3 GND
Pin 4 TXA
Pin 5 TXB
Pin 6 GND
Pin 7 N/C
Pin 8 N/C
G.703 75Ohm Connection Pinout (BNC)
RX TX
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RXB
TXA
RXA
RXB
LAN Module
The LAN module connects Local Area Network at the speed of 80Mbps with a
100BaseT. The combiner contains huge FIFO storage, which will defend the system
against overload in the network peak time.
The LAN module works only with 100Mbps Full Duplex.

LaserBit Communications Co. Users’ manual of Combiner v.:3.0
Local 10/100
Local Full Duplex
Local Link signal
RJ 45 10BaseT /
100BaseT
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Remote Link signal Figure 2 LAN connection
Remote 10/100
Remote Full Duplex
LED description
• Local Link Signal – Link signal from the local network equipment
• Local 10/100 - Acceptable type of connectivity
• Local FDX - Local side is full duplex (Forced 100Mbps FDX is required)
• Remote Link Signal – Link signal from the remote network
• Remote 10/100 - Acceptable remote type of connectivity
• Remote FDX - Remote side is full duplexed
RJ45 connector pin-layout
The RJ 45 connector has a standard NIC connection the layout:
Pin Nr Signal Colour code
Pin 1 TX -
Pin 2 TX +
Pin 3 RX +
Pin 4 N/C
Pin 5 N/C
Pin 6 RX -
Pin 7 N/C
Pin 8 N/C

LaserBit Communications Co. Users’ manual of Combiner v.:3.0
Fibre module
The fibre module provides information of the fibre link status. Currently there is 3
different interfaces for the fibre port
Installation Distance Fibre Type Connector type
2 km Multimode SC
15 km Single mode SC
40 km Multimode SC
The connector speed is at about 150Mb/s which is a LaserBit coded.
SC Fibre interface
TX RX
Fiber receive Local fiber loss
Remote fiber loss
Figure3 Fibre connection Fiber Transmit
LED Description
• Local Frame Loss - If a problem occurs on the local side the combiner sends
an RFL to the remote side so the remote side Remote Frame Loss LED will
start lit
• Remote Frame Loss- remote side fibre problems occurred
• RX - Incoming fibre signal (validity is not monitored)
• TX - Transmission OK
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LaserBit Communications Co. Users’ manual of Combiner v.:3.0
Jumper settings
JP1 JP9 JP7 JP8 JP6 JP5 JP4 JP15 JP10
Figure 4 Jumper settings JP14
JP13
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LaserBit Communications Co. Users’ manual of Combiner v.:3.0
JP1 Fibre output
Copper output (currently
not available
JP9,JP8,JP9 Equalizing circuit
enabled
Equalizing circuit
disabled
JP4 LLP Local Loop Enabled
LLP Local Loop Disabled
JP5 RLP Remote Loop
Enabled
RLP Remote loop
Disabled
JP6 HDB3 Line coding
disabled
HDB3 Line coding
enabled
JP13, JP14 G.703 75Ohm enabled
G.703 120Ohm enabled
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LaserBit Communications Co. Users’ manual of Combiner v.:3.0
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JP15 Signal-Ground to the
digital ground (RX)
Signal-Ground and
output ground
separated (RX)
JP16 Signal-Ground to the
digital ground (TX)
Signal-Ground and
output ground
separated (TX)
Before you do any adjustments on the jumpers or even remove the cover turn of the
device and remove the power cord from the main outlet, for your own safety!

LaserBit Communications Co. Users’ manual of Combiner v.:3.0
System Layout
The system layout contains LaserBit free space optic devices from 150-5000 m, the
connection between the combiner and the Laser head is a multi or single mode fibre
cable (depends on your specification)
The fibre connection has SC connectors as a standard, at the end of the combiner.
The connection point for the Local Area Network has an RJ 45 connector using a
straight layout. The G.703 connection connects the PBX’s with the speed of an
E1(2,048Mbps)
Fibre cable
E1 to PBX’s
with G.703
100BaseT
RJ45
Fibre cable
E1 to PBX’s
with G.703
100BaseT
RJ45
Figure 5 System layout with laser head
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Fibre cable
E1 to PBX’s
with G.703
100BaseT
RJ45
Fibre cable
E1 to PBX’s
with G.703
100BaseT
RJ45
Figure 6 System layout with simple fibre connection

LaserBit Communications Co. Users’ manual of Combiner v.:3.0
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Warranty conditions
LaserBit Communications Corp. warrants that the LaserBit product purchased
will free from defects in material and workmanship for a period of one (1) year from
the date of purchase. This warranty period will not be extended by virtue of a repair
of the product or a replacement of any component of the product during the
warranty period. This warranty covers only normal commercial use. LaserBit
Communications Corp. is not responsible for warranty service should the
LaserBit identification marks, serial numbers or original seals be removed, altered,
or broken, or should the product fail to be properly maintained or fail to function
properly as a result of any modification, misuse, abuse, improper installation,
neglect, improper shipping, damage caused by disasters such as fire, flood,
earthquake or lightning, improper electrical current, or service other than by
LaserBit Communications Corp. or its authorized partners.
If the LaserBit product fails to operate as warranted at any time during the
warranty period, LaserBit Communications Corp. will repair, or at its option,
replace the defective product at no additional charge.
In no event will LaserBit Communications Corp. be liable for any damages
including loss of data, lost profits, lost savings, lost business, or other incidental or
consequential or indirect damages arising out of the installation, use, maintenance,
performance, failure or interruption of the LaserBit product, even if LaserBit
Communications Corp. has been advised of the possibility of such damage. If you
purchased the LaserBit product in the United States, some states do not allow the
limitation or exclusion of liability for incidental or consequential damages, so the
above limitation may not apply to you.
The purchaser or user shall have the responsibility to give LaserBit
Communications Corp. prompt written notice of any warranty claims. If the
product was purchased through an authorized partner of LaserBit
Communications Corp., notice may be given in writing to that authorized partner
in the area in which the product was being used. The product may be returned to
LaserBit Communications Corp. only if it has a Return Material Authorization
(RMA) number. The product must be shipped prepaid, insured and in the original
shipping package or similar package for safe shipment. The RMA number must be
marked on the outside of the shipping package. Any product returned without an
RMA number shall be rejected.
Transportation charges for the return of the product will be paid by LaserBit
Communications Corp. if it is determined by LaserBit Communications Corp.
that the product was defective within the terms of the warranty; otherwise the
purchaser or user shall be responsible for costs of return handling and
transportation.
If the LaserBit product does not operate as warranted above, the customer’s sole
remedy shall be, at LaserBit Communications Corp.’s option, repair or
replacement. The foregoing warranties and remedies are exclusive and are in lieu of

LaserBit Communications Co. Users’ manual of Combiner v.:3.0
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all other warranties, expressed or implied, either in fact or by operation of law,
statutory or otherwise, including warranties of merchantability and fitness for a
particular purpose. LaserBit Communications Corp. Neither assumes nor
authorizes any other person to assume for it any other liability in connection with the
sale, installation, use or maintenance of the product.

LaserBit Communications Co. Users’ manual of Combiner v.:3.0
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Specifications:
Main Power: 230 VAC
Secondary Power:
Potential: +5VDC
Power consuption: 1000mA
User Interfaces:
Fast-Ethernet: IEEE 802.3 / 100BaseTX
E1 PDH 75R/120R ITU-T G.703 E1 2.048Mbps
75R/120R
Optical connector
Type of the optical connector: SC
Wavelength: 1300nm
Type of the optical cable: Single/Multimode
Maximum distance: 2km/15km/40km
Standards: ITU-T G.957, ITU-T G.958
IEC 825 Issue 1 1993:11
CENCELEC EN: 60 825 Class 1
TUV BAUART Licence: 933/510018/02
Line coding: 5B/6B
Line speed: 150Mbps
Sizes: 184x135x25 mm