Figure D-1. Sdlc Address Switch Setting - IBM 3270 Manual

Control SDLC Address
Unit
Hex
Switches 1
Address 12345678
01 00000001
02 00000010
03 00000011
04
00000100
05 00000101
06 00000110
07 00000111
08
00001000
09
00001001
OA 00001010
OB 00001011
QC 00001100
OD 00001101
OE 00001110
OF 00001111
10
00010000
11
00010001
12 00010010
13 00010011
14 00010100
15
00010101
16
00010110
17 00010111
18 00011000
19
00011001
1 "A" Switches
1 =Switch ON
0 =Switch
OFF
Control SDLC Address Control
Unit
Hex
Switches 1
Unit
Hex
Address 12345678 Address
1A 00011010 60
1B 00011011 70
1C 00011100 80
10
00011101 90
1E 00011110 AO
1F 00011111
BO
20
00100000
co
21 00100001 DO
22 00100010 EO
23 00100011 FO
24 00100100 F1
25 00100101 F2
26 00100110 F3
27 00100111 F4
28 00101000
F5
29
00101001 F6
2A
00101010 F7
2B 00101011 F8
2C 00101100 F9
2D 00101101
FA
2E
00101110 FB
2F 00101111 FC
30 00110000
l
FD
40
01000000
~
2 FE
50 01010000
2
Use addresses 01 - OF as necessary.
Ex: Address AD= AO 10100000
+OD 00001101
AD 10101101
Figure D·l. SDLC Address Switch Setting (Switches Al-AS)
SDLC Address
Switches 1
12345678
01100000\
01110000
10000000
10010000
10100000
>2
10110000
11000000
11010000
11100000 /
11110000
11110001
11110010
11110011
11110100
11110101
11110110
11110111
11111000
11111001
11111010
11111011
11111100
11111101
11111110
To determine the "B" switch settings, first obtain the control unit number (decimal 0-31)
or the control unit address (in EBCDIC hexadecimal) from the system programmer. Using
either address designation, look up the "B" switch settings in Figure D-2. For example, a
control unit address of hexadecimal SA (control unit number of decimal 26) requires that
switches Bl, B2, and B4 be set to ON and switches B3 and BS to OFF.
Item 2 in the example of the 3276 Switch Settings Form (Figure D-6, at the end of this
appendix) shows how the form should be filled in for control unit address SA (control
unit 26). Fill in Bl-BS of item 2 on the form.
Switch B6: Full-Duplex (FDX)/Half-Duplex (HDX) Switch (Except Loop Adapter Feature Machines)
40
In the HDX (OFF) position, this switch causes noncontinuous carrier operation. That is,
the Request to Send lead to the modem is on only when the 3276 wants to transmit. The
switch should be set to HDX when:
• BSC or SDLC protocol is being used in 2-wire operation.
• SDLC protocol is being used in 4-wire, leased-line, multipoint operation.
When the host modem has the NEWSYNC feature and the required host program support,
the HDX(OFF) position must be selected.