IBM 3270 Manual page 212

I
u
(
)
~
Dual Cable
3274 Models 1C, 21C, and 31C
0
Insert the gold thumbscrews provided in the customer envelope by pushing them in
the reverse direction of the arrows until the end of each thumbscrew appears outside
the hood.
Note: You should keep the removed thumbscrews in the customer envelope for later
use; the modem may be changed or the terminal may be relocated.
OR,,-.
3274 Model 51 C
D
Connect the cable plug
0
on the long section of the communication cable to the
socket
fl
on the short section of the communication cable. Tighten the thumb-
screws
EJ
of the cable plug
D
securely with your fingers.
D
Set the TEST/OPER switch
D
to OPER.
D
Connect the cable plug
El
to the modem or to the 3704/3705 pne Set 1 F Inter-
face Cable Connector (for direct attachment to a 3704/3705). Tighten the
thumbscrews
D
oft-he cable plug
II
securely with your fingers.
Appendix F. 3274 Communication Cables
F-3