Integrated services multiplexer
IDM-120EN is an Integrated Services Interleaving Multiplexer adopts
customized large scale integrated circuit, realizing 4 groups
(maximum) of E1 signal-processing multiplexing. It adopts 19 inches
1U standard cabinet and provides 15 multipurpose slots, 4 expansion
data slots and 30+8 channels 64K or N64K user interfaces. The types
of services include voice, data and video frequency. Each piece of
interface card provides one or two channels of services. All the
services interfaces cards of this device are multipurpose with the
interfaces cards of IDM-240 and IDM-24E1 series. The optical module
supplies at most 4 groups of E1 transparent transmission, and 1-2
Ethernet channels sharing 100M line-speed at the same time. Speed
of optical line 155Mbps, transmission distance no less than 40KM.
SC/FC/ST interface optional, support single optical fibre
transmission Main features Flawless modular design, flexible
extensional bus Powerful interleaving transmitting function,
providing 4 standardized E1 transmitting directions (G.703
standard), with built-in 256x256 non-congestion interleaving
connecting matrix. The device adopts PCM30/32 system, convenient
for forming complex chain or star-shaped networks; Being able to
connect abundant and various services. The maximum access capacity:
38 channels of user services; Powerful warning and indicant
function shown in the form of lights outside the panel, such as
LOS, LOF, AIS, MF, SMF, CRCE, plus rack alarm output interface;
Powerful network management function. It can configure, inquire and
manage the equipments as well as the failure statistics online;
Flexible channel-associated signaling revising mode, convenient for
connecting it with the equipments made by other factories, or
realizing one-side access; The frame structure possessing optional
CRC-4 testing and PCM30/31 setting functions; Very strong safety.
The information of the device is stored in memory. When the
electricity is given to the device, the stored information is
loaded automatically. Supply 1-2 ethernet interface, supporting
auto-adapted mode, supporting full duplex/ semi-duplex, 10M/100M
Ethernet interface support VLAN function, support flow quantity
control function. Ethernet data frame transmission by store and
forward mode.(S/F Mode)
