Specifications

Chapter 1 Introduction ASMi-52 Installation and Operation Manual
1-4 Overview
ASMi-52 supports multiple data rates in the range between 64 kbps and
4608 kbps. Data rate depends on the following factors:
• Unit rate mode (regular or low speed)
• Line interface type (2-wire or 4-wire)
• DTE interface type of the local and remote units (serial or E1)
• Clock mode (internal or external).
Table 1-2 and Table 1-3 detail the ASMi-52 data rates with all possible
combinations of rate mode types, line/DTE interface types, and clock modes.
Table 1-2. ASMi-52 Data Rates
DTE Interface & Clock Mode Line Interface
Local ASMi-52 Remote ASMi-52 2-wire 4-wire
Serial DTE
interface, internal
clock
Serial DTE interface
N × 64 kbps (N = 1, 2, … 32, 36) N × 128 kbps (N = 1, 2, …32, 36)
Serial DTE
interface, external
clock
Serial DTE interface
N × 64 kbps (N = 1, 2, …, 36) N × 128 kbps (N = 1, 2, …, 36)
Serial DTE
interface
E1 DTE interface
N × 64 kbps (N = 3, 4, …, 32) N × 128 kbps (N = 3, 4, …, 16)
E1 DTE interface Serial DTE interface
N × 64 kbps (N = 3, 4, …, 32) N × 128 kbps (N = 3, 4, …, 16)
E1 DTE interface E1 DTE interface
N × 64 kbps (N = 1, 2, …, 32) N × 64 kbps (N = 1, 2, …, 32)
Serial DTE
interface
T1 DTE interface
N × 64 kbps (N = 3, 4, …, 24) N × 128 kbps (N = 3, 4, …, 12)
T1 DTE interface Serial DTE interface
N × 64 kbps (N = 3, 4, …, 24) N × 128 kbps (N = 3, 4, …, 12)
T1 DTE interface T1 DTE interface
N × 64 kbps (N = 1, 2, …, 24) N × 64 kbps (N = 1, 2, …, 24)
Table 1-3. ASMi-52 Data Rates (Low Speed Mode)
Unit and DTE Interface Type Line Interface
Local Unit Remote Unit 2-wire 4-wire
ASMi-52 in low
speed mode
ASMi-52 in low
speed mode
N × 64 kbps (N = 1, 2, …, 32) N × 64 kbps (N = 1, 2, …, 32)
ASMi-52 in low
speed mode
ASMi-52 with serial
DTE interface
N × 64 kbps (N = 3, 4, …, 32) N × 128 kbps (N = 3, 4, …, 16)
ASMi-52 in low
speed mode
ASMi-52 with E1
DTE interface
N × 64 kbps (N = 1, 2, …, 32) N × 64 kbps (N = 1, 2, …, 32)
ASMi-52 in low
speed mode
ASMi-52 with T1
DTE interface
N × 64 kbps (N = 1, 2, …, 24) N × 64 kbps (N = 1, 2, …, 24)