RION
TELECOM
NETWORKS
User Manual
VCL-E1 (G.703) Fiber Optic Modem
UALITY ASSURANCE PROGRAM
Orion’s products are designed and manufactured under a strict Quality
Assurance Program based on the ISO 9000:2008 philosophy and
principles. Orion pays very special attention to its vendor development
program which ensures an “end-product” of the highest quality at the
most cost effective prices.
Warranty
This Orion product is warranted against defects in material and workmanship for a period of one year
from the date of shipment. During the warranty period, Orion will, at its discretion, either repair or
replace products, which prove to be defective. For warranty service or repair, this product must be
returned to a service facility designated by Orion. The buyer shall prepay shipping charges to Orion
and the company shall pay shipping charges to return the product to the buyer. However, the buyer
shall pay all the shipping charges, duties and taxes for products returned to Orion from another
country.
Limitation of Warranty
The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance
by the buyer, the buyer-supplied firmware or interfacing, unauthorized modification or misuse,
operation outside of the environmental specifications for the product or improper site preparation or
maintenance.
Exclusive Remedies
The remedies provided herein are the buyer's sole and exclusive remedies. Orion shall not be liable for
any direct, indirect, special, incidental or consequential damages, whether based on contract or any
legal theory.
Notice
This manual contains information that is proprietary to Orion Telecom Networks Inc. No part of this
publication may be reproduced in any form whatsoever without prior written approval by Orion
Telecom Networks Inc.
Safety Warnings
The exclamation point within a triangle is intended to warn the operator or service
personnel of operation and maintenance factors relating to the product and its
operating environment, which could pose a safety hazard.
Always observe standard safety precautions during installation, operation and maintenance of this
product. Only qualified and authorized service personnel should carry out adjustment, maintenance or
repairs to this instrument. No adjustment, maintenance or repairs should be performed by either the
operator or the user.
!!
2
Notice
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
INDEX
CAUTION
ELECTROSTATIC
SENSITIVE
DEVICES
DO NOT OPEN OR HANDLE
EXCEPT AT A
STATIC-FREE WORKSTATION
3
Particulars P. No.
Product Overview 4
Application Diagram 4
Technical Specifications 5
5
5
5
6
6
6
Time-slots selection for E1/FE1
Sync ronization Clock Settings
E1/FE1 Impedance Selection
Ordering Information 16
Electrical Interface (E1 Tributary)
Optical Interface Specifications - 850nm Multi Mode
Transmitter Optical Characteristics
Receiver Optical Characteristics 5
Optical Interface Specifications - 1310nm Single Mode
Transmitter Optical Characteristics
Receiver Optical Characteristics 6
Optical Interface Specifications - 1510nm Single Mode 6
Transmitter Optical Characteristics
Receiver Optical Characteristics 6
Front View 7
LED Indications 7
Pushbutton and Switch Indications 8
Rear View 9
AC Power Supply 9
-48V DC Power Supply 9
Optical Connection 10
E1 Connection 11
Bottom View 12
12
h 14
15
Index
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
Product Overview
Application Diagram
The VCL-E1 Fiber Optic Modem provides the user
the capability to establish communication between two E1
nterfaces over an optical fiber link.
It establishes a secure, long range data fiber link between
routers, multiplexers and other E1 devices.
The primary application for the VCL-E1 (G.703) Fiber Optic
Modem is to establish point-to-point fiber link at ranges
longer than any copper modem can achieve. The clock
options are Internal / External / Slave Clock - three clock
mode option.
(G.703)
/
FE1 I
Safety Warnings !!!!
For Testing : Always Install Optical Attenuators.
For Distance of less than 10 Kms Optical Attenuators
must be installed on the Optical Links. Otherwise, the
Optics will be Permanently Damaged.
VCL-E1 (G.703)
Fiber Optic Modem
VCL-E1 (G.703)
Fiber Optic
Modem
VCL-E1 (G.703)
Fiber Optic
Modem
FE1 FE1
Optical
Network
E1 RouterE1 Router
4
Product Overview
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
Technical Specifications
Electrical Interface (E1 Tributary)
Number 1
Nominal bit rate 2048 Kbps
Bit rate tolerance 50 ppm
Termination Impedance 120 Ohms balanced / 75 Ohms un-balanced
Line code HDB3
Frame structure As per G.704
Electrical interface As per G.703
Return loss at input port:
51.2 KHz to 102.4 Khz > 12 dB
102.4 KHz to 2048 KHz > 18dB
2048 KHz to 3072 KHz > 14 dB
Maximum Output Jitter 0.05UI
Maximum Input Jitter
20Hz to 93 Hz 1.5UI
700Hz to 100KHz 0.2UI
E1 Connectors RJ-45 / BNC
Permissible Attenuation 6 dB (max) @ 1024KHz
Optical Interface Specifications - 850nm Multi Mode
Transmitter Optical Characteristics
Receiver Optical Characteristics
Parameter Minimum Typical Maximum
Optical Data Rate 125Mb/s
Center Wavelength 830nm 850nm 860nm
Output Spectral Width (RMS) 0.85nm
Average Output power -10dBm -3dBm
Output Optical Eye Complaint with ITU-T G.957
Connectors FC
Parameter Minimum Typical Maximum
Optical Data Rate 125Mb/s
Receive Sensitivity -24dBm
Maximum Input Power -3dBm
Operating Wavelength -10dBM 850nm
Connectors FC
5
Technical Specifications
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
Optical Interface Specifications - 1310nm Single Mode
Transmitter Optical Characteristics
Parameter Minimum Typical Maximum
Optical Data Rate 125Mb/s
Center Wavelength 1260nm 1310nm 1360nm
Output Spectral Width (RMS) 6nm
Average Output power -15dBm -12dBM -8dBm
Output Optical Eye Complaint with ITU-T G.957
Connectors FC
Receiver Optical Characteristics
Parameter Minimum Typical Maximum
Optical Data Rate 125Mb/s
Receive Sensitivity -32dBm
Maximum Input Power -15dBm
Operating Wavelength 1100nm 1600nm
Connectors FC
Optical Interface Specifications - 1510nm Single Mode
Transmitter Optical Characteristics
Parameter Minimum Typical Maximum
Optical Data Rate 125Mb/s
Center Wavelength 1480nm 1550nm 1580nm
Output Spectral Width (RMS) 4nm
Average Output Power -15dBm -12dBM -8dBm
Output Optical Eye Complaint with ITU-T G.957
Connectors FC
Receiver Optical Characteristics
Parameter Minimum Typical Maximum
Optical Data Rate 125Mb/s
Receive Sensitivity -32dBm
Maximum Input Power -15dBm
Operating Wavelength 1100nm 1600nm
Connectors FC
6
Technical Specifications
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
Front View
LED Indications
ON
OFF
ANA DIG REM PATT
PWR E1LOS OPLOS TESTE1SYS PTOKOPSYL
VCL-E1-FOM
S. No. LEDs Color Description
1 PWR Green ON indicates that input power supply is OK.
2 E1LOS Red O
3
ptical link break alarm Solid RED indicates there is local
alarm and flashing indicates there is an alarm at the remote
end.
No frame synchronization code is detected in the input
signal of optical interface. Solid RED indicates an alarm of
local end and flashing to indicate there is an alarm at the
remote end.
6 PTOK G Pseudo code normally detected.
7 TEST Yellow Local device or remote device in test mode.
N indicates loss of E1 Signal at local site.
Flashing indicates loss of E1 signal at remote site.
E1SYL Red ON indicates loss of E1 Frame at local site.
Flashing indicates loss of E1 Frame at remote site.
4 OPLOS Red O
5 OPSYL Red
reen
7
Front View
RION
TELECOM
NETWORKS
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
Pushbutton and Switch Indications
Four push-button switches are available on the front panel. The switches are in “ON” mode
when pressed and in OFF mode when released. They are respectively from left to right.
ANA: This switch initiates a internal loopback on the optical interface so that the E1/FE1 data being
received from Tx Pins of E1/FE1 interface by the system is transmitted back to Rx Pins of the of
the same E1/FE1 Interface.
This test may be used to verify the integrity of the E1/FE1 Data Interface connections.
DIG: This switch initiates a internal loopback on the E1/FE1 Interface so that the data being received
from the Tx Pins of optical fiber is sent back on the Rx Pins of optical fiber through the E1/FE1
Interface.
This test may be used to verify the integrity of the optical link.
E1/FE1
E1/FE1
Optical Interface
Optical Interface
VCL- E1 Fiber
Optic Modem
VCL- E1 Fiber
Optic Modem
REM: This switch initiates a loopback at the remote side. It may be used to verify the complete data
link integrity between the local and the remote E1/FE1 Interface.
FiberE1/FE1
E1/FE1
VCL- E1 Fiber
Optic Modem
VCL- E1 Fiber
Optic Modem
Local End Remote End
PATT: This switch initiates a data link integrity test by generating a pseudo-random pattern.
Important:
1. All switches must be in OFF condition during normal operations. Whenever a test switch
is used to initiate a test, the normal communications shall be disrupted.
2. When PATT switch is used to do a data link integrity test please ensure that the far end in
a loopback mode to complete the test circuit.
8
Pushbutton and Switch Indications
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
Rear View
AC Power Supply
-48V DC Power Supply
OFF
Tx
Rx
ON
Tx
Rx
75
75
120
E1
AC 220V
From AC
Source
(220V)
3 Pin (male)
Socket
- 48 VGND
SGND
- 48V
++
++
++
++
--
EE
--
OFF
Tx
Rx
ON
DC 48V
+
E
-
+
-
-
+ +
Tx
Rx
75
75
120
E1
Note: Please connect -48V DC supply to the system as shown in above figure.
9
Rear View
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
Optical Connection
OFF
Tx
Rx
ON
Tx
Rx
75
75
120
E1
AC 220V
Transmit
Optical Signal
through Optical
Fiber Cable
Receive
Optical Signal
through Optical
Fiber Cable
Note: Do not expose to the naked eye.
Connect fiber cable to system
when power is OFF.
Safety Warnings !!!!
For Testing : Always Install Optical Attenuators.
For Distance of less than 10 Kms Optical Attenuators
must be installed on the Optical Links. Otherwise, the
Optics will be Permanently Damaged.
10
Optical Connection
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
E1 Connection
OFF
Tx
Rx
ON
Tx
Rx
75
75
120
E1
AC 220V
120 Ohms impedance
balanced E1 Port
BNC Connector
(Female)
BNC Connector
(Male)
BNC E1 Link
(Rx75 Ohms )
BNC Connector
(Female)
BNC Connector
(Male)
BNC E1 Link
(Tx75 Ohms )
RJ-45 (Female) Pin # Signal in RJ-45 (Female)
6 Rx Tip (Data In)
7 Rx Ring (Data In)
2 Tx Tip (Data Out)
3 Tx Ring (Data Out)
RJ-45 (Female)
1 23 4 5 6 78
Pinouts of for E1 InterfaceRJ-45
11
E1 Connection
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
Bottom View
Time-slots selection for E1/FE1
1
2 3 4 5 6 7 8
ON
OFF
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 8
1 8 9 16 17 2425 3233 40
There are total 40 DIP switches given the bottom of the equipment which shall allow the user to set the
bandwidth, framing etc. The switch selection/switch numbering is from left to right with switch “1” being
the 1st switch on the left.
There are three working modes of the E1 are:
a) Framed (CCS/PCM31)
b) Multi-framed (CAS/PCM30)
c) Un-framed E1(transparent E1)
Working Mode Switch Setting
Un-framed All switches OFF
Framed (CCS) Switch “1” OFF
Multi-framed (CAS) Switch “1” ON
12
Bottom View
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
For “n”x64 bandwidth / time-slots selection, please use the switch settings / selection given in th
following table.
e
Bandwidth configuration/time-slots selection
Time-slots Bandwidth ON OFF
1 64K 2 3 to 32
2 128K 2 to 3 4 to 32
3 192K 2 to 4 5 to 32
4 256K 2 to 5 6 to 32
5 320K 2 to 6 7 to 32
6 384K 2 to 7 8 to 32
7 448K 2 to 8 9 to 32
8 512K 2 to 9 10 to 32
9 576K 2 to 10 11 to 32
10 640K 2 to 11 12 to 32
11 704K 2 to 12 13 to 32
12 768K 2 to 13 14 to 32
13 832K 2 to 14 15 to 32
14 896K 2 to 15 16 to 32
15 960K 2 to 16 17 to 32
16 1024K 2 to 17 18 to 32
17 1088K 2 to 18 19 to 32
18 1152K 2 to 19 20 to 32
19 1216K 2 to 20 21 to 32
20 1280K 2 to 21 22 to 32
21 1344K 2 to 22 23 to 32
22 1404K 2 to 23 24 to 32
23 1472K 2 to 24 25 to 32
24 1536K 2 to 25 26 to 32
25 1600K 2 to 26 27 to 32
26 1664K 2 to 27 28 to 32
27 1728K 2 to 28 29 to 32
28 1792K 2 to 29 30 to 32
29 1856K 2 to 30 31 to 32
30 1920k 2 to 31 32
31 1984K 2 to 32
32 2048K ALL OFF
Note: Please note that switches (2 to 32) shall be set to ON position if selected to carry data, and to
OFF position if left unused.
Please note that the time-slots selected to carry data must always be consecutive time-Slots.
13
Bottom View
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
1
2 3 4 5 6 7 8
ON
OFF
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 8
1 8 9 16 17 2425 3233 40
Synchronization Clock Settings
Switches number 33-34 will be used for selection of synchronization clock.
Switch No. 33 Switch No. 34 Synchronization Clock Settings
ON OFF System will work on its internal clock.
OFF OFF System will work on the loop-timed (extracted)
clock from the equipment which is connected on
E1/FE1 interface side.
ON ON System will work on the loop-timed (extracted)
clock from the equipment which is connected on
optical side.
Switches number 35-36 will be unused and always set on OFF condition.
14
Synchronization Clock Settings
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
1
2 3 4 5 6 7 8
ON
OFF
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 81 2 3 4 5 6 7 8
1
2 3 4 5 6 7 8
1 8 9 16 17 2425 3233 40
E1/FE1 Impedance Selection
Switches number 37-40 will be used for impedance selection of E1/FE1 Port.
Switch No. Switch No. Switch No. Switch No. Impedance Selection of E1/FE1 Port
37 38 39 40
ON ON ON ON 75 Ohms un-balanced.
OFF OFF OFF OFF 12 Ohms balanced.
15
E1/FE1 Impedance Selection
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
Ordering Information
Sr. No. Product Description Part No.
1 VCL- Fiber Optic Modem - 850 nm
E1 (G.703) VCL-E1 FOM-850-AC
wavelength with AC power supply
2 VCL-E1 (G.703) Fiber Optic Modem - 850 nm VCL-E1 FOM-850-DC
wavelength with DC power supply
3 VCL-E1 (G.703) Fiber Optic Modem - 1310 nm VCL-E1 FOM-1310-AC
wavelength with AC power supply
4 VCL-E1 (G.703) Fiber Optic Modem - 1310 nm VCL-E1 FOM-1310-DC
wavelength with DC power supply
5 VCL-E1 (G.703) Fiber Optic Modem - 1550 nm VCL-E1 FOM-1550-AC
wavelength with AC power supply
6 VCL-E1 (G.703) Fiber Optic Modem - 1550 nm VCL-E1 FOM-1550-DC
wavelength with DC power supply
Note: Operation and maintenance of network equipment require professional knowledge and experience. We
recommend the equipment to be managed only by qualified technicians. Should you require technical
assistance please consult the provider, or contact our SUPPORT DESK at support@oriontelecom.com
Technical specifications are subject to changes without notice.
All brand names and trademarks are the property of their respective owners.
Revision 04, September 06, 2010.
16
Ordering Information
ORION TELECOM NETWORKS INC.
16810, Avenue of Fountains, Suite # 108
Fountain Hills, ,AZ 85268, USA
Phone: +1 (480) 816 8672
Fax: +1 (480) 816 0115
E-mail: sales@oriontelecom.com
Website: http://www.oriontelecom.com
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem
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