RAD Data comm ASMi-31 - Manual (Page 18)

Chapter 1. Introduction ASMi-31 Installation and Operation Manual
1-6 Technical Specifications 16-03-00 15:51
Clock Source Master Clock Internal clock – The master clock uses its own
internal crystal when transmitting or receiving
data from the DTE interface and from the line.
External clock
– The master clock uses the
clock derived from the digital interface to
receive data from the DTE and for transmitting
data to the line.
If the digital interface is X.21, the same clock is
used to transmit and receive data.
Slave Clock Loopback timing – The clock is recovered
from the line signal and used to transmit and
receive data from the DTE interface to the
line.
Control Signals Jumper-selectable:
•
RTS to DCD
•
DTR to DSR
Diagnostics Loopback Tests Remote Digital Loopback – REM activated by
pin in DTE interface supported by the
appropriate standard
Analog Loopback
– Local (ANA defined by
the standard as LLB) activated by pin in DTE
interface supported by the appropriate
standard
Indicators PWR (green) Power
RTS (yellow) Request To Send (Circuit 105)
TD (yellow) Transmit Data (Circuit 103)
RD (yellow) Receive Data (Circuit 104)
DCD (yellow) Data Carrier Detect (Circuit 109)
LOS (red) Loss of signal
ERR (red) Error is detected in received configuration
information
TEST (red) A test is active
Power AC Voltage 115 VAC or 230 VAC (10%), 5W
Frequency 50 or 60 Hz (47 to 63 Hz)
DC Voltage -48 VDC (-36 to -72 VDC)
Power Fuses 0.1A, slow-blow for 230V
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