Trusted I/O Companion Slot Cables
17. I/O Companion Slot Cable Type TC-221
Rockwell Automation Publication ICSTT-RM311R-EN-P
Issue 21
37
17.
I/O Companion Slot Cable Type TC-221
This type of cable, and the modules it is used with, is shown in Figure 16 below.
Figure 16 I/O Companion Slot Cable Type TC-221
This type of Trusted I/O Companion Slot Cable is designed for use with the T8472 120 Vac
digital output module only and is suitable for connecting output signals from the module to
an internal T8871 FTA. Power connections are integral with this type of cable.
The chassis end of the multi-core cable is fitted with two 32-way type ‘D’ connectors housed
in a double-width hood. The other end of the cable is fitted with two 8-way and two 5-way
BLZF 5 series connectors enabling the cable to be terminated at an T8871 FTA. Both ends
are fitted with screw retention. The two 5-way connectors carry AC field power on three of
the terminals, which is supplied to the FTA via screw terminals. Each connector powers one
group of eight terminals. The AC power cables may also be stripped out of the multi-core
sheath and terminated at an AC marshalling panel elsewhere.
The multi-core cable is stripped back 1.5 m at both ends, then shrouded in nylon Rilgain
sheathing. The ends of the sheathing are heated or fitted with over sleeving to help prevent
fraying.
At the chassis end, a sheathed braid allows the connector hood to be wired to safety earth.
Module
T8472
FTA
T8871
