Quick Start Guide Installation and Operation Manual
2 Configuring ASMi-52 ASMi-52 Ver. 2.5
Configuring the Master Clock
To configure the master clock:
From the System Configuration menu (Main Menu > Conf iguration > System
Configuration > Master Clock), configure the central ASMi-52 clock to
external or internal and remote ASMi-52 clock to the receive clock.
Configuring the SHDSL Interface
To configure the SHDSL interface:
From the SHDSL Configuration menu (Main Menu > Configuration > Port
Configuration > SHDSL Configuration), configure the following SHDSL
parameters:
SHDSL compatibility
Power backoff
Snext margin, if line probing is set to adaptive
Current margin, if line probing is set to adaptive
Power spectral density (for ASMi-52 with 2-wire line interface and line
probing set to fixed)
Line probing
Line type (for 4-wire ASMi-52 units only)
Loop attenuation threshold
SNR margin threshold.
Configuring the DTE Interface
ASMi-52 includes a serial, E1, T1, or 10/100BaseT DTE interface configured as a
single interface. ASMi-52 can be multiplexed as i.e., E1 + Serial DTE interface, or
E1 + 10/100BaseT DTE interface, or Serial + 10/100BaseT DTE interface, in
which case each pair of interface has to be configured separately.

Configuring the Serial Interface

To configure the serial interface:
From the DTE Port Config uration (Main Menu > Configuration > Port
Configuration > DTE Configuration), select the required data rate.

Configuring the E1 Interface

When configuring an E1 interface, you have to select the modem’s framing mode
and assign each E1 timeslot to carry data or idle code.
If in your application, an ASMi-52 unit with an E1 interface operates opposite
another ASMi-52 unit, the E1 settings of the remote device are automatically
matched to those of the local modem (the Units Identical Setting value is set to YES
by default). The Units Identical Setting value of the local modem overrides the
management commands of the remote supervisory terminal.