Specifications

Chapter 4 Configuration Installation and Operation Manual
4-8 Configuring MiTOP-E1/T1 for Operation MiTOP-E1/T1 Ver. 1.0
Configuring the E1 Interface at the Physical Level
³ To configure the physical layer of E1 interface:
• From the E1 menu (Configuration > Physical Ports > E1), configure the
following:
 TX Clock Source (Transmit clock source):
 Internal (Tx clock is received from an internal oscillator)
 LBT (E1 recovered Rx clock is used as the Tx clock)
 Adaptive (Tx timing is provided by the adaptive timing recovery
mechanism. This locks the port Tx timing to the average rate of
packets received from the PSN through the bundle serving this E1
port.)
 Line Code (Line coding used by E1 interface)
 HDB3
 AMI
 Rx Sensitivity (Maximum attenuation of the receive signal that can be
compensated for by the interface receive path):
 Short haul (-12 dB)
 Long haul (-43 dB)
 Line Type (E1 framing mode):
 Unframed
 G.732N (G.732N framing, CRC function is disabled)
 G.732N CRC (G.732N framing, CRC function is enabled)
MiTOP-E1/T1
Configuration > Physical Ports > E1
Tx Clock Source Internal Clock
Line Code HDB3
RX Sensitivity Short Haul
Line Type G.732N
Figure 4-10. E1 Port Physical Layer Menu
Configuring T1 Interface at the Physical Level
³ To configure physical layer of T1 interface:
• From the T1 menu (Configuration > Physical Ports > T1), configure the
following:
 Internal (Tx clock is received from an internal oscillator)