Field power connection, Termination, Module pinout connections – Rockwell Automation T8472 Trusted TMR 120V ac Isolated Output Module User Manual
Page 12: Trusted, Module t8472, Cable impedance

Trusted
TM
Module T8472
Issue 13 Sep 11
PD-T8472
12
2.2. Field Power Connection
May be connected at the T8871 Field Termination Adapter. However Field Power may be connected
any where along the cable by pulling the Field Power Cables (Grey & White) out of the outer sheath
and connecting onto suitable junction boxes.
2.2.1. Cable Impedance
Custom length multi-core FTA cables are 0.5mm
2
with a resistance of 40M/km. eg a 50m cable will
have 4M loop impedance at 0.5A, this equates to a 2Vdc volt drop.
2.3. Termination
Unused channels should be commanded OFF and may be fitted with a 33k 2W resistor to prevent no-
load detection.
2.4. Module Pinout Connections
Field Connections are made to the Modules DIN41612 type D Field Connector:
Table 2 Field Connector Pin-Out
Pin No.
Row a
Row c
2
(SMART_SLOT_A)
(SMART_SLOT_B)
4
(SMART_SLOT_C)
spare
6
V_RET_CH9_16
V_RET_CH1_8
8
V_FIELD_CH9_16
V_FIELD_CH1_8
10
V_FIELD_CH9_16
V_FIELD_CH1_8
12
V_FIELD_CH9_16
V_FIELD_CH1_8
14
V_FIELD_CH9_16
V_FIELD_CH1_8
16
V_FIELD_CH9_16
V_FIELD_CH1_8
18
LOAD_CH9
LOAD_CH1
20
LOAD_CH10
LOAD_CH2
22
LOAD_CH11
LOAD_CH3
24
LOAD_CH12
LOAD_CH4
26
LOAD_CH13
LOAD_CH5
28
LOAD_CH14
LOAD_CH6
30
LOAD_CH15
LOAD_CH7
32
LOAD_CH16
LOAD_CH8