Specifications

Table Of Contents
Installation and Operation Manual Chapter 2 Installation and Setup
ASMi-52CD Ver. 1.0 Setting the Internal Jumpers 2-3
With the exception of the ASMi-52CD/4 E1 module, all additional jumpers and
switches are factory-set and must not be moved by the user.
In certain locations where permanent excessive high voltages are present on the
lines, setting JP10 to NO may render the unit unsafe for connection to
unprotected telecommunication networks
Setting E1 Interface Internal Jumpers
Figure 2-2
illustrates the ASMi-52CD module layout for E1 interfaces. In addition
to the jumpers already described, it contains two double jumpers (JP1, JP2) and
an S1 DIP switch for selection of the E1 interface type, balanced or unbalanced.
J7
J3
J6
GND-FGND
N Y
POWER
DATA
ALM
SYNC
TST
JP10
WD
1
U8
JP3 JP1
E1 UNB
A
L
E1 B
A
L
SHDSL Board
JP8
S1
ON
1234
Figure 2-2. ASMi-52CD/4 E1 Jumpers
To select the E1 interface type:
Set the JP1 and JP3 jumpers to match the E1 interface type: balanced or
unbalanced.
Set section 1 of the S1 DIP switch on the modem card to match the E1
interface type: balanced (OFF) or unbalanced (ON).
Warning