DS-726/T3/E3
T3 & E3 Data Transmission
Modems
Full Duplex DS-3 Modem T3 & E3 Data Transmission
The DS-726/T3 and DS-726/E3 are full duplex
transmission systems - a T3 Carrier at 44.735 Mbps
and E3 Carrier at 34.368 Mbps. A pair of DS-726/ T3
modems with interconnecting optical cables provides
versatile, low cost, high speed, error-free data
communication between terminals for a distance of up
to 25 km.
The DS-726/T3 and E3 use a highly linear stage to
transmit data rates at 44.736 Mbps over a multimode
fiber optic cable. The wide optical dynamic range of
the DS-726/T3 allows various optical cable core sizes
and lengths to be used. The transmission distance can
vary from a few feet up to 30 km without causing
optical receiver overload.
System Design
On the receiver side, an integral detector amplifier is
used to ensure low noise/high sensitivity reception.
Signal quality is monitored by measuring the transmit
data input level and the received optical signal
strength. A built-in alarm dry contact relay as indicator
when signal drops below a pre-determined level.
Wall mounts and rack adapters are available for remote
stand alone unit installation. In addition, the DS-
726/T3 transmitter and receiver can be powered from
a +15V
DC
or -48V
DC
(option) built-in power source;
thereby providing versatility in system design.
Features
• Meets Bellcore, ANSI T1.102, TR-TSY-000499/CCITT &
ITS G.703, T3 and E3 standards
• Support AMI/B8ZS/HDB3 line code
• Multimode and singlemode operation over 2 fibers
• Built-in dry contact alarm relay
• Built-in self link tests diagnostic with indicators on the
front panel
• Retiming of receive signals for low jitter at both fiber and
coax ports
• Built-in Dual Power Redundancy
• Stand Alone unit or Rack Mountable
865
1310
1550
Type
LED
Mode
MM
Wavelength
Suffix
L1
Fiber
Type
50 /125µ
62.5/125µ
Output
Power
-18 dBm
Receiver
Sensitivity
-33 dBm
Optical
Loss
Budget
15 dB
Range*
10 km
Conn
Type
ST
•
•
•
•
ELED
SM
L2E
09/125µ
-10 dBm
-23 dBm
15 dB
23 km
FC
Laser
SM
L2
09/125µ
-08 dBm
-25 dBm
17 dB
25 km
FC
* Chromatic dispersion and additional losses should be taken into account
800-867-8426 • info@opticomm.com • www.opticomm.com • Contact Opticomm for custom requirements.
Opticomm reserves the right to change specifications without notice
OPTICOMM [ Opticomm Corporation ]
