Nx Networks 3000 - Manual (Page 62)

Specifications
48 3000 Series User Guide
ISDN S/T
The following table lists the specifications for the ISDN S/T module.
SDSL Module Specifications
The following table lists the specifications for the SDSL module.
Standards CCITT I.430
Data Rate 144 Kbps
Data Structure 2B + D
Bit Rate 192 Kbps
Connector RJ-61x, 2-pair conductor
Indicators D Channel Status, (2) B Channel Status
Line Coding Pseudo-tenary
Line Speed 144 Kbps to 2.320 Mbps
Interface Single pair
Connector RJ-48C
Indicators Alarm, Test Mode, Loss of Synchronization
Signalling 2B1Q
Impedance 135 ohm
Diagnostics Local and remote loopback