12
ABB Automation
1MRS 750107-MUM
Serial LonTalk
Adapter
Technical Reference Manual
SLTA Option Card
6.
Installation, configuration and programming
6.1.
Installation
As the SLTA option card is not intended for "stand-alone" use, it has to be installed
in the RER 111 unit. It can be placed in any of the 9 slots available.
The maximum number of SLTA option cards in one RER 111 unit is limited to 3.
To install the SLTA option card to RER 111 unit:
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Do not touch the fibre-optic transceiver.
Do not remove dust shields from transceivers not in use.
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6.2.
Configuration
6.2.1.
Configuration of the DCE/DTE attribute
The SLTA option card contains two groups of configuration jumpers, S1 and S2, for
programming the RS232 interface.
Jumper group S1 is used to configure the SLTA option card as Data Communicating
Equipment (DCE) or as Data Terminal Equipment (DTE).
If a modem is to be used in conjunction with the SLTA option card, the jumpers must
be set for DTE mode. In any other case, the jumpers must be set for DCE.
Factory default setting: DCE mode.
U1aux
U2aux
SERVICE
SERVICE PIN
1
2
8
5
6
3
7
10
11
9
12
4
SLTA Option Card
sslta_7
