User manual

ASM-10/8 Installation and Operation Manual Chapter 1. Introduction
09/10/00 16:26 Technical Specifications 1-9
1.4 Technical Specifications
Transmission
Line
T
yp
e Unloaded twisted
p
air 19 to 26 AWG;
2-wire for half du
p
lex; 4-wire for full
du
p
lex
Connector 5-screw connector or RJ-45
Ran
g
e See Table 1-1
Level 0 dBm, -3 dBm, -6 dBm, -9 dBm
Transmit Im
p
edance 150, 300, 600Ω, LOW,
j
um
p
er-selectable
Receive Im
p
edance 150, 300, 600Ω, HIGH,
j
um
p
er-selectable
Return Loss Greater than 15 dB
Carrier Controlled b
y
RTS or constantl
y
ON
Modulation Differential di
p
hase (Eurocom Std. D1)
Digital Interface
Type RS-232/V.24
Baud Rates (S
y
nc and As
y
nc) Selectable to:
1.2, 2.4, 3.6, 4.8, 7.2, 9.6, 14.4, 19.2 kb
p
s
RTS/CTS Dela
y
Jum
p
er-selectable to: 0, 8 or 64 msec
Connector 25-
p
in D-t
yp
e female
V.54 Diagnostics
Di
g
ital Loo
p
back • Local (DIG), activated b
y
a
p
ush button
• Remote (REM), activated b
y
a
p
ush
button or b
y
the DTE interface si
g
nal,
p
in 21
Analo
g
Loo
p
back Local (ANA), activated b
y
a
p
ush button or
b
y
the DTE interface si
g
nal,
p
in 18.
Timing Elements
Receive Clock Derived from CDP Receive si
g
nal
Transmit Clock Derived from the followin
g
alternative
sources:
• Internal
• External from the terminal, via pin 24
• Loo
p
clock derived from the receive
signal looped back as a transmit clock
Indicators
TD (yellow) Transmit Data
RD (
y
ellow) Receive Data
RTS (
y
ellow) Re
q
uest to Send
DCD (
y
ellow) Data Carrier Detect
TEST (red) Test
PWR (
g
reen) Power
RPF (red) Remote Power Fail (ASM-10/8/R onl
y
)