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Serial Ports on Models 320, 32E, 32H
(520, 530, 540, and 550 plus 930 and 950)
Note: Please check
your ports before getting a MODU cable. I have seen
systems identified as -320, but with DB25 ports in the
"Plate" location.
| Pin |
Signal |
| 1 |
Transmit Data |
| 2 |
Data Terminal Ready |
| 3 |
Request to Send |
| 4 |
Ring Indicate |
| 5 |
Reserved |
| 6 |
Receive Data |
| 7 |
Data Set Ready |
| 8 |
Clear to Send |
| 9 |
Data Carrier Detect |
| 10 |
Signal Ground |
MODU connector to an RJ-45 plug
00G0943 or 59F3740 Original
HERE
The adapter is a 14 inch cable with a female MODU
connector on one end and a male DB25 connector on the
other. The cable has an IBM part number (or an FRU) of
either 00G0943 or 59F3740. To quote again from the IBM
RT FAQ, question H.10:
---------------------------------------------------------
NOTE: Metering the IBM RS6000 stubby cable P/N 00G0943 matches this pinout.
Pin# 1 2 3 4 5 6 7 8 9 10 10-PIN MODU female
| | | | | | | | | |
| | | | | | | | +--+
| | | | | | | | | |
2 20 4 22 3 6 5 8 7 1 DB25 male connector
NOTE: pin 5 of the MODU connector is unused.
---------------------------------------------------------
AMP MODU Part Numbers (P/N)
| Housing |
102394-3 |
| Cover |
102541-3 |
| Back Cover |
102536-3 |
| Ferrule |
102903-3 |
| Receptacle |
2-87195-0 |
| Receptacle |
86491-4 |
| Shield Kit |
103125-2 |
IBM FRUs
| FRU (old) |
Standard I/O 10-pin to 25-pin converter cable |
| 00G0943 (59F3740) |
14” Wrkstn (or is that 4"?) |
| 81F8977 (59F4533) |
10’CPU drawer |
You will see the maddening (and NOT very helpful) "shipped with the system"
7012 Thick/Thin Ethernet Riser P/N 52G4737, FRU 43G0382 Card 2-8
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F1 1 A, 250V fuse
J1 planar connector
J2 Select AUI / coax
J3 AUI connector
J4 BNC connector
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PS1 Valor PM6030
U1 Intel D82C501AD
U2 DP8392CN-1
Y1 20.000 MHz xtal
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PS1 Valor PM6030 12V to 9V power regulator
DP8392C Coaxial Transceiver Interface
D82C501AD Ethernet Serial Interface
Place two jumper blocks on upper two rows of pins for AUI, or on lower two rows for BNC
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7012 Twisted-Pair Ethernet Riser P/N 32G2000, FRU 00G1276 Card 2-9
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DS1 Green LED
J2 RJ45
J3 LINK
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TX3 TDK ZJY-4P
U1 D82C501AD
Y1 20.000 MHz osc
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Daughtercard marked "i82521TB"
LINK jumper ON 10baseT networks LINK jumper OFF network is not 10baseT.
DS1 lights when riser is properly connected to 10baseT network . DS1 off -
cable defective / not connected, network not 10bT, or TP riser not properly
installed.
D82C501AD Ethernet Serial Interface
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7012 SCSI Bus Extension Card P/N 51G9781, FRU 00G2721
Rick says:
As you can see, there's not much to this
"SCSI Bus Extension Card". It has a 62 card edge
connector (31 on each side) that plugs into the planar,
and two standard SCSI narrow connectors (CN1, CN2) are
available to attach 3.5-inch SCSI hard drives.
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