Specifications

Module Installation and Operation
2-2 MP2100M-LS-2 Modules - Installation and Operation Manual
2.2 Preparation for Installation
The operating mode of the LS-2 and LS-2/M module versions is controlled only
by software, and therefore no jumpers or switches have to be set by the user.
Therefore, for these modules you may skip this section and proceed with the
installation of the module in the equipment enclosure, as explained in
Section 2.3.
For the other module versions, there are hardware settings that control
parameters which are not configurable by software. The hardware settings are
as follows:
• For the LS-2A, LS-2A/2TS, MTLS-2A, and MTLS-2A/2TS modules, it is
necessary to select the transmission mode (synchronous/asynchronous) of
the channels. For channels operating in the asynchronous mode, it is
necessary to select the word frame format.
• For the MTLS-2A and MTLS-2A/2TS, it is also necessary to select the
interface type, DCE or DTE, for each channel.
The following sections provides detailed instructions for making the required
settings for each type of module.
Modules MTLS-2
and MTLS-2/2TS
Figure 2-1 identifies the location of the jumpers and switches located on the
MTLS-2 and MTLS-2/2TS modules.
Channel Interface Selection
The module has several groups of DCE-DTE interface selection jumpers (one
group for each channel). The channel served by each group is marked on the
board. The channel interface selection jumpers can be independently set for
each channel, in accordance with the desired interface type:
DCE Select this setting when connected to a DTE. In this
case, configure the channel for DCE timing.
DTE Select this setting in the following applications:
• When connected directly to a DCE. In this case,
configure the channel for DTE timing (DTE2).
• When connected to a DCE in a tail-end circuit. In
this case, configure the channel for external DCE
(DTE1) timing.
Always move all the jumpers of one group to the same position.