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Fiber Optic Ethernet Communications  Equipment MODEL LT8520 |
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MODEL
LT8520 |
1-4 Ch. Telephone, 0 to 4 Ch. Of Data & 1 Ch. of 10/100 Ethernet Fiber Optic Multiplexer |
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| LT8520S Standalone Unit |
LT8520R with 19" Card Cage |
FEATURES
- Multiplexes 1 - 4 Ch. T1/E1 and 10/100 Ethernet,
Optional RS-232, RS-530, V.35
- Network Management (SNMP, Web, Telnet)
- Ethernet Rate Control
- Two-Way "One Fiber" Option
- Multimode or Single Mode (1300/1550nm)
- Power Redundancy, Optical Redundancy Optional
- Industrial Hardened (optional)
- 12VDC, Optional 24VDC, -48VDC, 125VDC or 115/230VAC
- Hi-Temp2 Version Exceeds NEMA & Caltrans
Traffic Control Specs
APPLICATIONS
Typical applications include extending SDH/SONET
backbones and adding Ethernet service to existing
T1 or E1 fiber optic links. Service Providers
use the LT8520 as an efficient, cost effective
method to provide their customers with Ethernet
(including Rate Control) connections for data
and T1 for voice. The two-way “one fiber,”
option can double usage of existing fiber optic
cable plants.
DESCRIPTION
The LT8520 Ethernet & T1/E1 Fiber Multiplexer
provides 10/100 Ethernet and T1/E1 Connectivity.
It multiplexes various combinations of one-to-four
T1/E1 or Serial Data channels and a 10/100M Ethernet
over single mode (1300/1550nm) or multimode fiber
(1300/1550nm).
The LT8520 supports distances to more than 100
km and offers a two-way, “one fiber”
communication option to maximize fiber cable usage.
Optional redundant power and optics include automatic
switchover for maximum reliability.
Setup, diagnostics and control is accessed via
Serial Terminal, Telnet or SNMP management ports.
Diagnostics include LED indicators, dry contact
alarms and local and remote loopback.
The Ethernet port supports full 100Mbps bandwidth
and rate control in increments of 32Kbps. It is
IEEE 802.3/802.3u/802.3x compliant. Each T1 or
E1 channel is independent, transparent to the
framing format and supports all applicable standards
and line codes. Serial interface options are RS-232,
RS-422, RS-449, RS-530 and V.35.
The LT8520 is available basic standalone or 1U
high “pizza box.” Fiber optic connectors
are ST, FC or SC. Standard power is 12VDC and
includes built-in redundancy. Optional power sources
include 24VDC, -48VDC, 125VDC or 115/230VAC with
an external power cube.
TECHNICAL SPECIFICATIONS |
- Data Rates:
| T1 |
1.544
Mbps |
| E1 |
2.048 Mbps |
| Ethernet |
10/100 Mbps |
| RS-232 |
Up to 120 Kbps |
| RS-422, V.35 |
Up to 1Mbps |
- Channel Capacity:
| T1, E1
or any combination |
4 |
| Ethernet |
1 |
| RS-232, RS-422, TTL,
Dry Contacts |
4 |
- Optical:
| Transmitter |
ELED,
ELED, LASER* |
| Receiver |
PIN Diode |
| Wavelength |
1300nm Multimode
1300nm, 1550nm Single
Mode |
| Fiber Optic
Connectors |
ST, FC or SC |
Loss Budget*
(1300nm, 1550nm) |
Multimode (62.5/125µm):
15dB
Single Mode (9/125µm):
20dB |
* Contact factory for higher
requirements
- Electrical:
| Interface |
T1, E1
(G.703), IEEE 802.3,
RS-232, RS-422, V.35 |
| T1
Connector |
(100 Ohm)
Terminal Blocks |
| E1
Connector |
(120 Ohm)
Terminal Blocks |
| E1 Connector |
(75 Ohm) Terminal
Blocks to BNC Adapter |
| 10/100
Ethernet Connectors |
RJ45 (Female) |
| RS-232,
RS-422, V.35 Connectors |
RJ45 (Female) |
- System:
| Bit
Error Rate |
1 in 10^10
or better |
- Alarm:
- Visual Indicators:
| System |
PWR A,
PWR B, VccA, VccB, ALARM |
| Channel
Status |
RXD, RLOS, LOS, RLPB,
BPV, Alarm |
| Optical
Signal Status |
SyncB, Optic in Use,
RXA, RXB, VLIN |
- Diagnostic Functions:
Local and Remote Loopback
- Power:
| Standard |
12VDC
@ 1.2A |
| Optional |
24VDC, -48VDC, or
115/230VAC (with external
power cube) |
- Temperature:
| Operating |
-10°
to 50°C |
| Hi-Temp
(optional) |
-20° to 70°C |
| Storage |
-40° to 90°C |
| Humidity |
95% non-condensing |
- Physical (Standalone/Wallmount
Unit):
| Height |
(6.70
cm) 2.6" |
| Width |
(18.14 cm) 7.1" |
| Depth |
(24.80 cm) 9.8" |
| Weight |
(1.36 kg) 3 lbs. |
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