IBM 4381 Manual page 141

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Hardware Features
2. Selector mode implemented
3. Data streaming
4. UCWs/subchannels
D. Channel retry data in limited
channel logout
E. Channel indirect data addressing
F. Channel-to-Channel Adapter
IV. SUPPORT PROCESSOR
SUBSYSTEM
A.
Components
4341 Model Group 12
Yes
Standard on all
Up to 256 on a channel
Yes
Standard
One optional
Support processor
Support bus adapter
Local channel adapter
Console attachment for four natively
attached devices
Power adapter
Common communications adapter
One system diskette drive and adapter
B. Natively attached devices
Required 3278 Model 2A or 3279
Model 2C as operator console (display
and printer-keyboard modes standard)
Up to three units in any combination
of 3278 Model 2 displays, 3279
Model 2C displays, 3268 Model 2 or
2C Printers, and 3287 Model l, lC, 2,
or 2C Printers
C. Remote Support Facility
No-charge specify
D. Remote Operator Console Facility
No-charge specify
132
A Guide to the IBM 4381 Processor
4381 Model Groups 11, 12, 13, and 14
Model Group 14
Channel Group 1
Channel Group 2
Channel 1 - 3
Channel 1 - 3
Channel 2 - 3
Channel 2 - 3
Channel 3 - 3
Channel 3 - 3
Channel 4 - 3
Channel 4 - 3
Channel 5 - 3
Channel 5 - 3
Max Aggregate 10 channels - 30
Channel 6- 3
Channel 7 - 3
Channel 8 - 3
Channel 6- 3
Channel 7 - 3
Channel 8 - 3
Max Aggregate 16 channels - 36
Yes
Standard on all
Up to 256 on a channel
Yes-System/370 mode
Standard
One optional (new packaging)
Same as 4341 except two system
diskette drives are standard. Different
support processor and diskette drives
used.
Sarne as 4341 plus 3205 Color Display
Console is available
Same as 4341 plus 3205 display, which can
not be mixed with 3278 Model 2A or 3279
Model2C
No-charge specify
No-charge specify

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