ASM-20
Installation and Operation Manual Chapter 1. Introduction
6/4/99 13:10 Technical Specifications 1-7
Digital Interface
Type
• V.24/RS-232 via 25-pin D-type, (up to 64 kbps
only), female connector
• V.35 via 34-pin female connector
• X.21 via 15-pin D-type female connector
• RS-530 (RS-422) via 25-pin D-type female
connector
• V.36 (RS-449) via 37-pin female connector
using mechanical cable adapter provided with
the product
• G.703 Codirectional (64 kbps) via terminal
block or RJ-45
• Built-in Ethernet bridge via RJ-45 connector or
BNC
Data Rates - selectable
Sync:
19.2, 32, 48, 56, 64, 72, 96, 112, 128, 144, 192,
256 kbps
Async:
19.2, 28.8, 38.4, 57.6, 115.2 kbps
RTS/CTS Delay
Switch selectable to:
- 0 ms
- 9 ms
- 70 ms
Length of Word
8, 9, 10, 11
Stop Bits
1, 1.5, 2
Diagnostics
(Complies with the
V.54 Standard)
Digital Loopback
• Local (DIG), activated by a manual switch
• Remote (REM), activated by a manual switch
or by a control signal from the DTE interface
connector
Analog Loopback
Local (ANA), activated by a manual switch or by a
control signal from the DTE interface connector
Pattern
Test pattern activated by manual switch
Timing Elements
Receive Clock
Derived from the receive signal
Transmit Clock
Derived from 3 alternative sources:
• Internal oscillator
• External from the DTE
• Loop clock derived from the receive signal
