Specifications

ASM-10/8 Installation and Operation Manual Chapter 1 Introduction
Technical Specifications 1-9
1.4 Technical Specifications
Line Interface
Type
Unloaded twisted pair 19 to 26 AWG; 2-wire for half
duplex, 4-wire for full duplex
Connector
5-screw terminal block
Range
See Table 1-1
Level
0 dBm, -3 dBm, -6 dBm, -9 dBm
Transmit Impedance
User-selectable: 150, 300, 600Ω, LOW
Receive Impedance
User-selectable: 150, 300, 600Ω, HIGH
Return Loss
Greater than 15 dB
Carrier
Controlled by RTS or constantly ON
Modulation
Differential diphase (Eurocom Std. D1)
DTE Interface
Type
V.24 (RS-232)
Baud Rate
(Sync and Async)
User-selectable: 1.2, 2.4, 3.6, 4.8, 7.2, 9.6, 14.4, 19.2 kbps
RTS/CTS Delay
User-selectable to: 0, 8 or 64 msec
Connector
DB-25, female
Diagnostics
Loopbacks
• Local (ANA), activated by a pushbutton or by the DTE
interface signal, pin 18.
• Remote (REM), activated by a pushbutton or by the
DTE interface signal, pin 21
• Local (DIG), activated by a pushbutton
Timing
Receive Clock
Derived from CDP receive signal
Transmit Clock
Derived from the following alternative sources:
• Internal
• External from the terminal, via pin 24
• Loop clock derived from the receive signal looped
back as a transmit clock
Indicators
TD (yellow)
Transmit Data
RD (yellow)
Receive Data
RTS (yellow)
Request to Send
DCD (yellow)
Data Carrier Detect
TEST (red)
Test
PWR (green)
Power
RPF (red)
Remote Power Fail (ASM-10/8/R only)