OneAccess One80XM, Installation Manual

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One80XM Chapter 4
Installation Guide Interface Description
24
4.2 SHDSL Line Specifications
• Single pair, dual pair, 4 pair line access
• Connector: RJ45
• Impedance: 135
Ω
• Cable to be used: 2*2*CAT5E twisted pair
• Coding: TCPAM, compliant to ITU-T G.991.2; G.SHDSL, and G.SHDSL.bis via TCPAM-16 and
TCPAM-32
• Line speeds:
- Single pair: 192 … 5696 in steps of 64kbps
- Two pair: 384 … 11392 in steps of 128kbps
- Four pair: 768 … 22784 in steps of 256kbps
• Handshaking: compliant G.994.1 (automatic speed negotiation) or fixed speed
• Performance monitoring: compliant G.826 (errored seconds, severely errored seconds, unavailability
seconds)
The line connector lay-out
The following table shows the connector layout of the RJ45 line connector (for 4 pair versions):
Pin Signal Figure
1 line 2
2 line 2
3 line 3
4 line 1
5 line 1
6 line 3
7 line 4
8 line 4