System Architecture - ABB ETL600 Instruction Manual

ETL600
3.2.

System architecture

ETL600 may be tailored to the specific needs of the application thanks
to its modular architecture. The modules are housed in one, two or
three standard 19" subracks, mounted on top of each other as shown
in Fig. 3-9. For the terminals to be operational, a minimal set of
modules is needed shown with solid lines in the block diagrams of Fig.
3-10 to Fig. 3-12. This set is referred to as 'basic equipment'.
Depending on the services needed by the application, additional
modules may be inserted into the subrack in slots not occupied by
modules of the basic equipment. DPLC operation and AF data
channels may be activated with an appropriate license key. A large
variety of possible equipment configurations results depending on
license key and number and type of optional modules.
All possible configurations for the equipment ETL640 and ETL680 are
shown in Fig. 3-9 (front- and side-views) and Fig. 3-10 to Fig. 3-12
(block diagrams). Optional parts are drawn in dashed lines. Refer to
section 3.3.11 regarding the differences between ETL640 operation
with Rx-filter (Fig. 3-10) and without Rx-filter (Fig. 3-11).
Legend for the figures:
1: AF interface type O4LE (optional for telephony, teleoperation and
external teleprotection)
2: NSD600 teleprotection interface type G4AI (optional)
3: RF-converter type P4LT
4: Interface extension module P1LX (included on the unit P4LU)
5: Alarm relay module type R1BC (optional, in the rear)
6: DC-DC-converter type B4LE
7: Channel subrack type P7LC
8: 40 W power amplifier type P1LA (mounted in the rear)
9: Transmit filter type E5TX
10: Carrier combiner type P3LG
11: RF hybrid type P3LE or – optional for testing – dummy load
P3LK
12: Receive filter type P4RX (optional)
13: Power supply type B5LA or B5LC
14: Power subrack type P7LA
All modules are plugged from the front except where otherwise noted.
Connectors for interface cables are in the rear of the equipment.
Exceptions:
Structure and Function
1KHW001489-EN
The data connectors of the modules P4LT and P1LX are
placed at the equipment front.
Power supply connectors are on the left rear side.
ABB Switzerland Ltd
November 2005 3-11