MODEL7304 User Manual
Page 3 of 11
1.
1.
1.
1. Introduction
Introduction
Introduction
Introduction
MODEL7304 is a high-performance V.35 optic fiber modem developed by using a dedicated
integrated circuit. It is to modulate a N×64K V.35 data signal directly over single- or
multi-mode optic fiber for a transmission via optic cable line. At another end of the optic
cable, optical signal is demodulated into a V.35 data signal. V.35 interface may be directly
connected with the V.35 interfaces of image and data terminals or the WAN ports of MUX,
exchanger and router for a dedicated network setup or a LAN connection.
2.
2.
2.
2. Product
Product
Product
Product Features
Features
Features
Features
�
Rate N×64Kbit/s (N=1
～
32)
�
Support the loopback of local analog/digital interface
�
Support remote loopback function
�
Support pseudo-random code test function
�
120km trunking -free transmission distance for single-mode optic fiber
�
Capable to be communicated with FE1 Fiber Modem
�
Available with complete line detection and alarm indications
�
Available
with
independent
structure
and
19-inch
Rack-mountable
structure
Rack-mountable structure can be inserted with 16 modules
�
AC 220V and DC –48V inputs may be selected for fiber optic modems of both structure
�
For Rack-mountable fiber optic modems, dual power supply heat backup is provided to
ensure a high operating reliability
3
3
3
3.... Specification
Specification
Specification
Specifications
s
s
s
Optic
Optic
Optic
Optic interface:
interface:
interface:
interface:
�
Line mode type: CMI
�
Line mode rate: 2.048Mbps
�
Operating wavelength:850nm,1310nm or 1550nm
�
Optic fiber connector: SC/PC
�
Applicable optic fiber: multi-mode, single-mode
�
Transmission distance:
Single-mode: up to 120km Multi-mode: up to 2km
V.35
V.35
V.35
V.35 interface
interface
interface
interface
：
�
Data rate: N×64Kbps
（
N=1~32
）
�
Available with CTS/RTS (Hardware) flow control function
�
Type of connector: M34 connector
�
Operating mode: DCE
Indicator lamps: To indicate the operating status of power supply, data receiving/sending,
loopback and random code test, code missing alarm, out-of-frame alarm
etc.
Structure
Structure
Structure
Structure
：
Independent: 140mm(depth) x 210mm(width) x 42mm(height)
