The 3174 Model 61R is a table-top remote controller that supports the EIA 232D/CCITT V.24/V.28 or CCITT V.35 interfaces for SDLC, BSC, or X.25 remote link attachment. The Model 61R supports up to sixteen 3270 devices and eight ASCII devices.

Terminal Attachment

The 3174 Establishment Controllers offer a wide variety of terminal attachments. They can be configured to connect terminals directly, via 3299 Terminal Multiplexers, via optional Terminal Multiplexer Adapters (#3103) and via optional Telephone Twisted Pair Terminal Multiplexer Adapters (#3105), or by a combination of these attachments.

Models 61R, 62R, 63R and 64R have a maximum attachment capability of 16 terminals. The base controller has an integrated nine-port terminal adapter which permits up to nine terminals to be directly attached, or by using one of the following, up to a maximum of 16 terminals can be attached:

• Two 8 port multiplexers (3299 model 002 and 003)
• One 8 port multiplexer and up to eight terminals directly attached

Communications Facilities

3174 Models 11R, 12R, 21R, 61R, 62R, 90R, 91R, and 92R operate in data half-duplex point-to-point or multipoint modes on duplex or half-duplex nonswitched facilities, and in half-duplex point-to-point mode on switched facilities as listed below.

COMMUNICATION FACILITIES
3174 MODEL 11R/21R/61R/90R/91R:

@ = Not available on Model 90R.

NOTE: When ordering this controller a Communication cable must be specified: V.24 or V.35.