----- Supply network analyzer CVMk and CVMk-ITF ------ Page Nº 53
12.4. APPENDIX D : CVM-RED-420 module
This module is equal to the CVM/RED, with the addition of a 4 - 20 mA analog
output. (Card type 0251)
- DB- 9 OUTPUT: it corresponds to a CVM/RED module.
This module provides:
a.- ENERGY ( kW.h , kvarh.L and kvarh.C )
b.- Main serial communication RS-485
1 c ------ TX --
2 d ------ TX +
5 g ------ GND
c.- 2nd. RS-485 serial output for the link to the peripherals: 3, 4 & 5 pins
3 e ------ TX --
4 f ------ TX +
5 g ------ GND
- CONNECTION TERMINAL OF COMBICON type ( 4 terminals ):
1 4 - 20 mA output module
- Supply: An external supply between 8 and 15 Vdc is required
- The maximum load that can be connected to the output depends on the supply
voltage: Rmax = ( Vsupp (min) - 5 ) / 0.02
c
-- V supply
d
-- 0 / 20 mA
e
+ 0 / 20 mA
f
+ V supply
4 3 2 1
DB-9
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