3270
@E1FF.ADF - IBM 3270 Connection Version B (Short Card)
ADF Sections

NOTE: The core controller, a Toshiba 16F0291, does not change in the MCA or (very few) ISA version cards. TI CF63363PCM appears to incorporate much of the MCA bus interface functions. Further meditation required.


3270 26F0189 Manufactured @ mid 1988
C6 Y5S .0022M 100v
C19,20,24 big SMD caps
C27,29 Bourne? 226 16K
D1,2 Discrete diodes
J1 Coax port
J2 MCA Edgecard
R3-5 1/4 WATT Carbon resistors!!!
RP1 CTS8846 / 767-161R2K
RP2 Bourne 4816P-002 -391
RP3 CTS8834 / 83X9683
T1 PE-61773-002
U1 Fairchild 74F32 SC8812 W		 U2 Fairchild 74F08 SC8820 X
U3 Fairchild 74F86 SC8817 Y
U4 Fairchild 74F10 SC8817 X
U5-7 D41464-12
U8 TI 826CS LS125A
U9 6407289ESD
U10,11 TI844BF ALS646
U12 Toshiba 16F0291
VR1 SMD chip, looks like a capacitor
VR1a - unpopulated outline "VR1"
Y1 23.587 MHz osc
0

3270 33G5248 manufactured @ 9305 Most components mfr about 9244

 
C1,2 Bourne? 226 16K
C3A Y5S .0022M 100v
D1,2 S 3G G1
J1 Coax Port
J2A MCA Edgecard
RP1 CTS9242 / 39F9383
RP2 CTS9230 / 93F0150		 T1 PE-5762M
U1 Toshiba 16F0291
U2 TI CF63363PCM / 92F6454
U3 Toshiba TC55329J-35
U5 Motorola XXAA223 / 25F8105
VR1A Voltage Regulator (much smaller!)
Y1 23.587 MHz osc (metal can or plastic)

3270 74F5175 mfd @ 9216 (ISA variant)

 
C1,2 Bourne? 226 16K
C3 Y5S .0022M 100v
D1,2 Discrete diodes
J1 Coax Port
J2A MCA Edgecard
R1-4 Dale 9204J RN60D 2430F
RP1 CTS9229 / 768201202G
RP2 CTS9224 / 768161391G		 RP3 CTS9226 / 74F4465
T1 PE-61773-002
U1 Toshiba 16F0291
U2 TI CF62831APC / 39F9393
U5 Motorola XQAB203 / 25F8105
VR1A Voltage Regulator
VR1B Voltage Regulator (unpopulated)
Y1 23.587 MHz osc (metal can or plastic)

Looks like there should be an earlier ISA variant. This one is closer to 33G5248 with the large TI chip.


AdapterId E1FF  The IBM 3270 Connection Version B

Resources Used
   The First, Second, Third and Fourth choices are available to allow up to four adapters in the machine or to resolve conflicts with other adapters.  First is the default and matches the original adapter's configuration. 
      <"First" (02D0h - 02DFh)>, Second (06D0h - 06DFh), Third (0AD0h - 0ADFh), Fourth (0ED0h - 0EDFh)

Memory Assignments
     CE00 is the default and matches the original adapter's configuration.
         <"CE00" (CE00-CFFF)>, CA00 (CA00-CBFFF), CC00 (CC00- CDFF), D000 (D000-D1FF), D200 (D200-D3FF), D400 (D400-D5FF), D600 (D600-D7FF), D800 (D800-D9FF), DA00 (DA00-DBFF), DC00 (DC00-DDFF), DE00 (DE00-DFFF)

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