Specifications

Quick Start Guide ASM-10/8 Installation and Operation Manual
2 Installing ASM-10/8
Item Jumper Description Values Default Setting
5 XMT LEVEL Selects the transmit output level to the
line
0 dbm
-3 dbm
-6 dbm
-9 dbm
0 dbm
6 XMT IMPD Selects transmit line impedance
600
300
150
LOW
150
Note: Set XMT IMPD to LOW when using ASM-10/8 in multipoint applications.
7 RPF Enables the Remote Power Failure
notification (ASM-10/8/R only)
ON – RPF notification enabled
OFF – RPF notification disabled
ON
Note: Set RPF to OFF when using ASM-10/8 in multipoint applications.
8 PIN 18 Controls the local analog loopback
activation via the DTE pin 18
EN – The analog loopback
activation from the DTE
enabled
DIS – The analog loopback
activation from the DTE
disabled
EN
9 PIN 21 Controls the remote digital loopback
activation via the DTE pin 21
EN – The remote loopback
activation from the DTE
enabled
DIS – The remote loopback
activation from the DTE
disabled
EN
10 CHAS GND Controls the connection between the
ASM-10/8 signal ground and the frame
(chassis) ground
CONN – Signal ground is
connected to the frame
ground
DIS – Signal ground is
disconnected from the
frame ground
CONN
Note: Disconnecting the signal ground from the frame ground may render the unit unsafe for connection to
unprotected telecommunication networks in some locations.
11 RCV IMPD Selects receive line impedance
150
300
600
HIGH
150
Note: Set RCV IMPD to 150Ω for the master modem and the last modem in the line, and all others to HIGH, when
using ASM-10/8 in multipoint applications.