The D75E works with the EG8 to receive and process 32 channels of
E1 services. It can be configured with a range of services such as
E1 ATM services, E1 IMA services, and E1 CES services.
Table 1 provides the functions and features of the D75E.
Table 1 Functions and features of the D75E board
Function and Feature
Description
Basic functions
Provides 32 E1 ports, and can transmit/receive 32 fractional E1
services or thirty-two 64 kbit/s CES/IMA services.
Interface types
Supports 75-ohm E1 electrical interface. The electrical interface
uses the DB44 connector.
Interface characteristics
Loopback types of the port
Supports inloops and outloops.
Auto disabling of port loopback
Supported
CES
Number of supported CES services
32
Supported emulation mode
CESoPSN
SAToP
Timeslot compression
Supports the timeslot compression function. In the case of the CES
service in CESoPSN mode, the D75E compresses idle timeslots to
improve the bandwidth utilization on the NNI side.
Jitter compensation buffering time
0.375 ms to 16 ms, in increments of 0.125 ms
Packet loading time
0.125 ms to 5 ms, in increments of 0.125 ms
ATM/IMA
Number of supported IMA groups
32
Maximum number of E1 links in each IMA group
16
Number of V-UNI ports
8k
Number of V-NNI ports
4k
Cell concatenation
Mode:
Concatenation
Non-concatenation
Maximum number of concatenated cells: 31
ATM OAM
Type:
CC
LB
AIS
RDI
Quantity: 8k
Service type
CBR
UBR
UBR+
rt-VBR
nrt-VBR
ATM QoS
Supported.
Clock function
Restores four CES adaptive clock recover (ACR) clocks.
Clocks that are recovered from services over ports 1 and 9 can be
added to the clock priority list.
NOTE:
Clock recovery over ports 1 to 16 is independent of clock recovery
over ports 17 to 32. That is, clocks that are recovered from
services over ports 1 to 16 can be transmitted out of ports 1 to 16
and clocks that are recovered from services over ports 17 to 32 can
be transmitted out of ports 17 to 32.
Line code of E1 link
HDB3 code
Frame format of E1 link
Unframed format, double-framed format, or E1 CRC-4 multiframe
format (default value)
Maintenance features
Supports the query of the board manufacturer information.
Supports the in-service loading of the FPGA.
Supports the upgrade of the board software without affecting
services.
Supports the PRBS function. For details, see Availability.
Technical Specifications of the D75E
The technical specifications of the D75E include the parameters
specified for electrical interfaces, mechanical specifications, and
power consumption.
Parameters Specified for Interfaces
Table 1 lists the parameters specified for the electrical
interfaces of the D75E.
Table 1 Specifications of the ports
Port type
Description
E1 electrical interfaces
75 ohm E1 electrical interfaces
Mechanical Specifications
The mechanical specifications of the D75E are as follows:
Dimensions (mm): 22.0 (W) x 125.2 (D) x 261.4 (H)
Weight (kg): 0.4
Power Consumption
The maximum power consumption of the D75E at room temperature
(25°C) is 15 W.
Delivery
Cargo will be delivered within 1 day after payment arrived.
Tracking Number will be offered once delivery done.
Delivery Options
Estimated Delivery Time
DHL
3-5 business days
Fedex
3-5 business days
By Sea
10-20 business days
Notice:
Above mentioned information are just for your reference only,we
will keep you posted for the tracking delivery schedule.There are
two delivery options available for by air and by sea:
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Uonel is responsible for transporting goods to port. All subsequent
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freight forwarders to you.Uonel can facilitate the progress under
buyer's permission and at buyer's expense.
Deliver to door:
Uonel will quote all destination charge prior once we have
confirmed order. Uonel is responsible for transporting goods to door after you have
made the payment.
If your products failed, you must contact your sales representative
to verify product failure. If the problem still can't correct by
remote support methods i.e. email or phone support, the RMA
procedure will issue.
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