FUNCTIONS AND SPECIFICATIONS
FOX61xLEDE1 13
3 Functions and specifications
3.1 Feature licences
Part of the FOX61x functionality is subject to feature licences. For more
information on feature licences please refer to "1KHW002459 FOX61x
Release Notes".
3.2 LEDE1 function overview
The LEDE1 unit provides the following functions and supports the following
standards:
Table 3: Functions and specifications
Feature Rating or standard Release
Front interface 8 x E1 (2048 kbit/s)
ITU-T G.703, ITU-T G.704
r1a
- Connector DIN 41612 r1a
- Impedance 120 symmetrical
75 asymmetrical
with external impedance converter
r1a
- Jitter ITU-T G.823 (all modes) r1a
ETSI ETS 300 248 (terminated modes) r1a
- Maximum cable lengths
75 with coaxial cables 390 m r1a
120 with balanced HF cables 180 m r1a
PBUS access 8 x P12 r1a
- Transport modes Transparent: transparent for clock and data
Clock Master: data transparent, retimed to the net-
work element clock
Structured G.704 (PCM30, PCM30C, PCM31,
PCM31C): P12 signal terminated, retimed to the
network element clock
V5 uplink: P12 signal terminated, retimed to the
network element clock, V5-specific Sa-bit handling
- Cross connections Flexible cross connections to any other FOX61x
TDM unit on the P0-nc and P12 traffic layer
r2a
Synchronisation sources for the network element E1 port r1a
Maintenance functions r1a
- Loops P12 front to front loop
P12 back to back loop
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