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Mechanical construction
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– E65C – CU-P40, P41, P42 – User Manual
3
Mechanical construction
3.1
Overview
The communication unit CU-P4x is a unit complete in itself with its own
plastic case.
9
9 7
1
5 4
7
9 -2
2
0 12
C
U
-P
4
2
C ON
G
S M
R X
T X
CU-P
4 2
G SM
/GR
P S
C
S
R
S
4
8
5
2 4
23
+
-
5 V
1
5
2
4
3
1
Fig. 3.1
Communication unit CU-P4x, removed
1 10-pin connector
2 Faceplate
3 SIM-card slot
4 Light guide through which the LEDs are visible
5 Power supply, antenna and interface connections
The faceplate of the communication unit fitted in the meter is visible with
the meter front door open. When fitted in a CU-adapter, the faceplate can
be seen through the transparent front cover.
The external connections (supply voltage, antenna, CS- and RS485 or
RS232 interface) are situated underneath, while a 10-pin connecting plug
provides connection at the rear with the meter electronics or CU-adapter.
Four LEDs on the circuit board indicate transmission and reception activi-
ties as well as readiness to receive through the light guide under the face-
plate.
The communication unit has no seal of its own. It is secured when built-in
by a utility seal of the meter or CU-adapter.
