•
Two RJ45 connectors for dual rate Ethernet (10/100Base-T)
•
Two RJ45 connectors for four E1 interfaces with 75 / 120
Ω
(Selection can be
made on port level via the user interface; default is 120
Ω
.)
The EPL4_E14 unit provides 4 ethernet ports. Two of these (5 and 6) support 10/100
Base-T line rates while the other two (pairs 7/8 and 9/10) are multirate ports capable of
10/100/1000 Base-T/-X. For these ports, the selection between 1000 Base-T (electrical
interfaces 8 and 9) and 1000 Base-X (optical interfaces 7 and 10) has to be done via
the NMS. This selection can be done independently for each Port. When an optical
port is in use, the electrical counterpart is inactive and vice versa. Each connector and
each SFP has its own green LED (data link up: LED ON or down: LED OFF) and
yellow LED (transmission: LED ON or no transmission: LED OFF).
The following figure shows the front panel of the EPL4_E14 option card.
The EPL_4_E14 option card is able to compensate a maximum delay difference of 128
ms between the fastest and the slowest VC in receive direction.
Link Capacity Adjustment Scheme (LCAS)
The EPL4_E14 option card supports a flexible allocation of SDH bandwidth to LAN
ports by making use of the Link Capacity Adjustment Scheme (LCAS, see
). All LAN ports have the same capabilities. Each WAN port supports
VC-12-Xv (X = 1...63), VC-3-Xv (X = 1...9), VC-4-Xv (X=1..7).
GFP Encapsulation
GE
Rx
Rx
Tx
Tx
Lucent
8
FAIL
E1
1
4
EPL4_E14
E/FE
5
6
9
E/FE/GE
GE
10
7
Product description
Introduction
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2-16
Lucent Technologies - Proprietary
See notice on first page
365-312-847R4.0
Issue 4, November 2006