Installation guide

VAR4 / VAR12 / VAR20 - Product Description
6.3.4 Control Port 2 (Expand Unit)
Expand unit Control Port 1 implements opto-isolated contacts on a 25-way female D connector.
The contact numbers in brackets refer to the upper expand unit (VAR20 only). The contacts numbers without
brackets refer to the lower expand units (VAR12 and VAR20)
Figure 19 Expand Unit Control Port 2
FEMALE
10
9
8 7 613 12 11
18 17 16 15 1423
22
21 20 1925 24
5 4 3 2 1
CONTACT 33
(CONTACT 53)
- +
- +
CONTACT 32
(CONTACT 52)
- +
CONTACT 34
(CONTACT 54)
CONTACT 35
(CONTACT 55)
- +
CONTACT 37
(CONTACT 57)
- +
CONTACT 39
(CONTACT 59)
- +
- +
CONTACT 36
(CONTACT 56)
- +
CONTACT 38
(CONTACT 58)
- +
CONTACT 40
(CONTACT 60)
CONTACT 42
(CONTACT 62)
- +
CONTACT 41
(CONTACT 61)
- +
Pin No. Signal Description
1 CONTACT 32 (CONTACT 52) + Opto-isolated Contact 32(52) +VE
2 CONTACT 33 (CONTACT 53) + Opto-isolated Contact 33(53) +VE
3 CONTACT 34 (CONTACT 54) + Opto-isolated Contact 34(54) +VE
4 CONTACT 35 (CONTACT 55) + Opto-isolated Contact 35(55) +VE
5 CONTACT 36 (CONTACT 56) + Opto-isolated Contact 36(56) +VE
6 CONTACT 37 (CONTACT 57) + Opto-isolated Contact 37(57) +VE
7 CONTACT 38 (CONTACT 58) + Opto-isolated Contact 38(58) +VE
8 CONTACT 39 (CONTACT 59) + Opto-isolated Contact 39(59) +VE
9 CONTACT 40 (CONTACT 60) + Opto-isolated Contact 40(60) +VE
10 Not Connected
11 CONTACT 41 (CONTACT 61) + Opto-isolated Contact 41(61) +VE
12 CONTACT 42 (CONTACT 62) + Opto-isolated Contact 42(62) +VE
13 Not Connected
14 CONTACT 32 (CONTACT 52) - Opto-isolated Contact 32(52) -VE
15 CONTACT 33 (CONTACT 53) - Opto-isolated Contact 33(53) -VE
16 CONTACT 34 (CONTACT 54) - Opto-isolated Contact 34(54) -VE
17 CONTACT 35 (CONTACT 55) - Opto-isolated Contact 35(55) -VE
18 CONTACT 36 (CONTACT 56) - Opto-isolated Contact 36(56) -VE
19 CONTACT 37 (CONTACT 57) - Opto-isolated Contact 37(57) -VE
20 CONTACT 38 (CONTACT 58) - Opto-isolated Contact 38(58) -VE
21 CONTACT 39 (CONTACT 59) - Opto-isolated Contact 39(59) -VE
22 CONTACT 40 (CONTACT 60) - Opto-isolated Contact 40(60) -VE
23 Not Connected
24 CONTACT 41 (CONTACT 61) - Opto-isolated Contact 41(61) -VE
25 CONTACT 42 (CONTACT 62) - Opto-isolated Contact 42(62) -VE
Issue: 03 complete, approved
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