• Interface at 2.048 Mbit/s ± 50 ppm, HDB3 coded and conforming to G.703
standard 1991, asynchronously mapped via a VC-12 in TU-12. The 2 Mbit/s
electrical (E1) interface access is via RJ45 connector suitable for symmetrical
twisted pair cables either with an impedance of 120 Ω or coaxial cables with an
impedance of 75 Ω.
Each 2 Mbit/s tributary interface (main card or optional card) can be operated in
ISDN PRI (Primary Rate Interface) or Leased-Line mode. It allows to transmit “30
B+D” according to G.962 and I.431. This feature requires the processing of the
overhead contained in timeslot 0 (TS0) of the 2 Mbit/s signal.
• Interface at 34.368 Mbit/s ± 20 ppm, HDB3 encoded and conforming to G.703-8
October 1998, asynchronously mapped into LO-VC3. The 34 Mbit/ s electrical
clear channel (E3) interface access is via a coaxial female DIN 1.6/5.6 type
connector with an impedance of 75 Ω.
• Interface at 44.736 Mbit/s ± 20 ppm, B3ZS encoded and conforming to G.703-6
October 1998, directly mapped in a LO-VC3. The 45 Mbit/s electrical tributary
(DS-3) interface access is via a coaxial female DIN 1.6/5.6 type connector with an
impedance of 75 Ω.
• A 10/100BaseT Ethernet Interface (LAN interface) with auto-negotiation supporting
Ethernet and IEEE 802.3, 1998 access protocols. Auto-negotiation of the data rate
(10 Mbit/s or 100 Mbit/s) and of the mode (half-duplex and full duplex). The
10/100BaseT Ethernet Interface access is via a RJ45 connector.
• Interface at 2.048 Mbit/s ± 50 ppm asynchronously mapped via VC-12 in TU-12
with physical characteristics and DCE control signalling according X.21 for leased
circuit service (point to point). The X.21 Interface access is via a 15 pin female
sub-D connector (ISO 4903 recommendation).
The jitter and shift levels comply with G.823 and G.783.
X12SHDSL option board
An SHDSL interface over a single copper pair (two wires) that allows for the transport
of either an E1 or an TU-12 over SHDSL in compliance with ITU-T standards. (1643
AM / 1643 AMS DC version only)
Interfaces:
• 12 standard SHDSL physical interfaces compliant ITU-T G.991.2 and ETSI TS 101
524 on single (twisted) copper pair
• TC-16-PAM modulation/coding
• RJ-45 connector suitable for symmetrical 135 Ω twisted pair cable.
Possible operation in TU-12 or E1 mode.
Selection made per option board by software:
TU-12 mapping in SHDSL:
• TU-12 to SHDSL synchronous mapping according HDSL: ETSI TS 101 135 clause
7.6
• Interface SHDSL rate of 2320 kbit/s
Technical Specifications
System specifications
...................................................................................................................................................................................................................................
365-312-801R7.2
Issue 3, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
10-9
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