Table of Contents
Advertisement
Configuring WAN Access
Configuring E1 lines
Defining settings for DPNSS signaling on DASS 2 switches
If you are connecting a MAX unit to a standard DPNSS or DASS2 switch, you do not have to
change the DPNSS/DASS2 settings. But connection to a nonstandard switch could require
changes in these settings. Also, if you connect two units back-to-back, you have to change
settings for the unit that acts as the network (PBX) side. Following are the relevant parameters,
which are in each Net/E1 > Line Config > Line Config profile > Line N profile
Parameter
L3 End
L2 End
NL Value
LoopAvoidance
For detailed information about each parameter, see the MAX Reference.
Configuring DPNSS signaling
The MAX 3000 supports DPNSS signalling when connecting to a DASS2 switch. To
configure an E1 line for DPNSS signaling:
1
2
3
4
3-22
Specifies
Which call (outbound or inbound) the MAX unit's CCITT Layer 3
software processes if a collision occurs. With the default setting
(x-side), the unit processes the outbound call and drops the inbound
call. The default setting (x-side) is required for connection to
DPNSS signaling on a DASS2 switch.
How the MAX unit's CCITT Layer 2 software differentiates between
the acting network (PBX) side and the acting user (ET) side of a
back-to-back DPNSS connection. On a functional level, the L2 End
parameter enables the DPNSS state machine to detect the difference
between Layer 2 command messages and Layer 2 response messages.
Maximum number of retransmissions to send on an E1 line.
Connection to DPNSS signaling on a DASS2 switch requires the
default setting of 64.
Maximum number of transit PBX devices through which a call can be
routed.
Open the Net/E1 > Line Config > Line Config profile > Line N subprofile for the line you
are configuring.
Set Sig Mode to DPNSS, and set Switch Type to specify the DPNSS-compatible switch.
For example:
Net/E1
Line Config
Line Config profile
Line 1...
Sig Mode=DPNSS
Switch Type=DASS2
Mercury is a variant of DPNSS.
Specify the framing mode required by your service provider. For example:
Framing Mode=2DS
Most E1 DPNSS providers in the U.K. require 2DS, which is a variant of G.703. If you
select G.703, the unit provides CRC-4 checking. If you select 2DS, it does not.
Make sure that the following parameters are set to their default values, as shown:
MAX 6000/3000 Network Configuration Guide
:
Advertisement
Table of Contents
