When a serial interface card provides more than two serial ports there are two possible implementations.
Either
1. The extra connectors are mounted on brackets fitted in empty slots and connected
to the card by ribbon cables
or
2. A single connector is mounted on the card and a multi-port cable plugs into
this. This multiport cable has many individual cables each with a standard PC
serial port connector, either 9 pin or 25 pin.
A multiport cable or fan-out cable may be unique to the manufacturer of the interface card so cables intended for use with different cards but look identical may not be interchangeable. This is my attempt to document those I have discovered so far.
25 pin male D-Connector to two 9 pin male D-Connectors. (CBL-M25M9x2-50)
Used on the Moxa CP-102UL and CP-112UL
25 pin D-Connector pin numbers | ||||||
port 1 | port 2 | Signal | 9 pin | 25 pin | ||
12 | 18 | TXD | 3 | 2 | ||
24 | 5 | RXD | 2 | 3 | ||
11 | 17 | RTS | 7 | 4 | ||
23 | 4 | CTS | 8 | 5 | ||
10 | 16 | DSR | 6 | 6 | ||
22 | 3 | GND | 5 | 7 | ||
21 | 2 | DCD | 1 | 8 | ||
9 | 15 | DTR | 4 | 20 | ||
NC | NC | RI | 9 | 22 |
Pins 1,6,7,8,13,14,19,20 & 25 unused
44 pin male D-Connector to two 9 pin female D-Connectors.
Used on the Lindy PCI Serial 2 Port (51326)
44 pin D-Connector pin numbers | ||||||
port 1 | port 2 | Signal | 9 pin | 25 pin | ||
12 | 9 | TXD | 3 | 2 | ||
13 | 10 | RXD | 2 | 3 | ||
27 | 24 | RTS | 7 | 4 | ||
43 | 40 | CTS | 8 | 5 | ||
28 | 25 | DSR | 6 | 6 | ||
41 | 38 | GND | 5 | 7 | ||
14 | 11 | DCD | 1 | 8 | ||
29 | 26 | DTR | 4 | 20 | ||
42 | 39 | RI | 9 | 22 |
Pins ??? unused
44 pin male D-Connector to two 9 pin female D-Connectors. (1WDB-44M04009D2000)
Used on the Sunix SER5037AL,SER6437AL/HL
44 pin D-Connector pin numbers | ||||||
port 1 | port 2 | Signal | 9 pin | 25 pin | ||
11 | 15 | TXD | 3 | 2 | ||
40 | 44 | RXD | 2 | 3 | ||
10 | 14 | RTS | 7 | 4 | ||
39 | 43 | CTS | 8 | 5 | ||
38 | 42 | DSR | 6 | 6 | ||
25 | 29 | GND | 5 | 7 | ||
26 | 30 | DCD | 1 | 8 | ||
9 | 13 | DTR | 4 | 20 | ||
24 | 28 | RI | 9 | 22 |
Pins ??? unused
37 pin male D-Connector to four 9/25 pin male D-Connectors. (CC-060 9pin) (CC-072 25pin)
Used on the Brainboxes IS-400 and UC-268
37 pin D-Connector pin numbers | ||||||
port 1 | port 2 | port 3 | port 4 | Signal | 9 pin | 25 pin |
3 | 26 | 12 | 35 | TXD | 3 | 2 |
2 | 25 | 11 | 34 | RXD | 2 | 3 |
21 | 7 | 30 | 16 | RTS | 7 | 4 |
22 | 8 | 31 | 17 | CTS | 8 | 5 |
20 | 6 | 29 | 15 | DSR | 6 | 6 |
5 | 28 | 14 | 37 | GND | 5 | 7 |
1 | 24 | 10 | 33 | DCD | 1 | 8 |
4 | 27 | 13 | 36 | DTR | 4 | 20 |
23 | 9 | 32 | 18 | RI | 9 | 22 |
Pin 19 unused
37 pin male D-Connector to four 9 pin male D-Connectors. (CBL-M37M9x4-30)(PCE37/9PS)
Used on the Moxa C104H, Advantech PC-1612A/B/C(+), Contech COM-4(PCI), VScom PCI-400, ExSys 41054(*), PCCOM PCI 4 PORT RS-232 and Sunix 4056A,4065A,4066A(*)
(*) The connections for ports 3 & 4 are swapped over.
(+) The connections for ports 3 & 4 are as shown below.
The connections for other cards listed above are unconfirmed.
37 pin D-Connector pin numbers | ||||||
port 1 | port 2 | port 3 | port 4 | Signal | 9 pin | 25 pin |
19 | 33 | 24 | 10 | TXD | 3 | 2 |
37 | 14 | 5 | 28 | RXD | 2 | 3 |
18 | 32 | 23 | 9 | RTS | 7 | 4 |
36 | 13 | 4 | 27 | CTS | 8 | 5 |
17 | 31 | 22 | 8 | DSR | 6 | 6 |
35 | 12 | 3 | 26 | GND | 5 | 7 |
34 | 11 | 2 | 25 | DCD | 1 | 8 |
16 | 30 | 21 | 7 | DTR | 4 | 20 |
15 | 29 | 20 | 6 | RI | 9 | 22 |
Pin 1 unused
37 pin male D-Connector to four 9 pin male D-Connectors.
Used on the Flexport 42
37 pin D-Connector pin numbers | ||||||
port 1 | port 2 | port 3 | port 4 | Signal | 9 pin | 25 pin |
3 | 12 | 21 | 30 | TXD | 3 | 2 |
2 | 11 | 20 | 29 | RXD | 2 | 3 |
7 | 16 | 25 | 34 | RTS | 7 | 4 |
8 | 17 | 26 | 35 | CTS | 8 | 5 |
6 | 15 | 24 | 33 | DSR | 6 | 6 |
5 | 14 | 23 | 32 | GND | 5 | 7 |
1 | 10 | 19 | 28 | DCD | 1 | 8 |
4 | 13 | 22 | 31 | DTR | 4 | 20 |
9 | 18 | 27 | 36 | RI | 9 | 22 |
Pin 37 unused
37 pin male D-Connector to four 9 pin female D-Connectors.
Used on the ?????
37 pin D-Connector pin numbers | ||||||
port 1 | port 2 | port 3 | port 4 | Signal | 9 pin | 25 pin |
10 | 13 | 16 | 17 | TXD | 3 | 2 |
24 | 28 | 32 | 36 | RXD | 2 | 3 |
9 | 12 | 15 | 19 | RTS | 7 | 4 |
25 | 29 | 33 | 37 | CTS | 8 | 5 |
23 | 27 | 31 | 35 | DSR | 6 | 6 |
7 | 26 | 30 | 34 | GND | 5 | 7 |
3 | 4 | 5 | 6 | DCD | 1 | 8 |
8 | 11 | 14 | 18 | DTR | 4 | 20 |
1 | 20 | 2 | 21 | RI | 9 | 22 |
Pin 22 unused
44 pin male D-Connector to four 9 pin male D-Connectors. (CC-213 9pin)
Used on the MRi PCI4S, PCI4S1 and Brainboxes UC-263, UC-260, UC-701, UC-049, UC-061, UC-072, UC-083, UC-295, UC-253, UC-734, PX-260/701/346/335/368
44 pin D-Connector pin numbers | ||||||
port 1 | port 2 | port 3 | port 4 | Signal | 9 pin | 25 pin |
13 | 25 | 21 | 17 | TXD | 3 | 2 |
14 | 26 | 22 | 18 | RXD | 2 | 3 |
29 | 10 | 6 | 2 | RTS | 7 | 4 |
28 | 9 | 5 | 1 | CTS | 8 | 5 |
30 | 11 | 7 | 3 | DSR | 6 | 6 |
43 | 39 | 36 | 32 | GND | 5 | 7 |
15 | 27 | 23 | 19 | DCD | 1 | 8 |
12 | 24 | 20 | 16 | DTR | 4 | 20 |
42 | 8 | 4 | 33 | RI | 9 | 22 |
Pins 31,34,35,37,38,40,41 & 44 unused
44 pin male D-Connector to four 9 pin male D-Connectors. (CBL-M44M9x4-50)
Used on the Moxa CP-104UL, CP-114EL(-I), CP-114UL and CP-134U(-I)
44 pin D-Connector pin numbers | ||||||
port 1 | port 2 | port 3 | port 4 | Signal | 9 pin | 25 pin |
13 | 9 | 5 | 1 | TXD | 3 | 2 |
14 | 10 | 6 | 2 | RXD | 2 | 3 |
15 | 11 | 7 | 3 | RTS | 7 | 4 |
28 | 24 | 20 | 16 | CTS | 8 | 5 |
30 | 26 | 22 | 18 | DSR | 6 | 6 |
44 | 41 | 37 | 33 | GND | 5 | 7 |
42 | 39 | 35 | 31 | DCD | 1 | 8 |
29 | 25 | 21 | 17 | DTR | 4 | 20 |
NC | NC | NC | NC | RI | 9 | 22 |
Pins 4,8,12,19,23,27,32,34,36,38,40 & 43 unused
Sunix44-444 pin male D-Connector to four 9 pin male D-Connectors. (1WDB-44M04009D4003)
Used on the Sunix SER5056AL,SER5456A,SER6456A/AL/HL
44 pin D-Connector pin numbers | ||||||
port 1 | port 2 | port 3 | port 4 | Signal | 9 pin | 25 pin |
3 | 7 | 11 | 15 | TXD | 3 | 2 |
32 | 36 | 40 | 44 | RXD | 2 | 3 |
2 | 6 | 10 | 14 | RTS | 7 | 4 |
31 | 35 | 39 | 43 | CTS | 8 | 5 |
18 | 34 | 38 | 42 | DSR | 6 | 6 |
4 | 21 | 25 | 29 | GND | 5 | 7 |
17 | 22 | 26 | 30 | DCD | 1 | 8 |
1 | 5 | 9 | 13 | DTR | 4 | 20 |
16 | 20 | 24 | 28 | RI | 9 | 22 |
Pins 8,12,19,23,27,33,37 & 41 unused
62 pin male D-Connector to eight 9 pin male D-Connectors. (CBL-M62M9x8-100)
Used on the Moxa C168H, CP-118U, CP-138U-I, CP-168U, VScom 800 PCI and ExSys EX-44088
62 pin D-Connector pin numbers | ||||||||||
port 1 | port 2 | port 3 | port 4 | port 5 | port 6 | port 7 | port 8 | Signal | 9 pin | 25 pin |
1 | 25 | 6 | 30 | 33 | 14 | 38 | 41 | TXD | 3 | 2 |
22 | 3 | 27 | 8 | 11 | 35 | 16 | 19 | RXD | 2 | 3 |
44 | 47 | 49 | 52 | 54 | 57 | 60 | 62 | RTS | 7 | 4 |
43 | 46 | 48 | 51 | 53 | 56 | 59 | 61 | CTS | 8 | 5 |
23 | 4 | 28 | 9 | 12 | 36 | 17 | 20 | DSR | 6 | 6 |
45 | 45 | 50 | 32 | 55 | 58 | 40 | 40 | GND | 5 | 7 |
24 | 5 | 29 | 10 | 13 | 37 | 18 | 21 | DCD | 1 | 8 |
2 | 26 | 7 | 31 | 34 | 15 | 39 | 42 | DTR | 4 | 20 |
NC | NC | NC | NC | NC | NC | NC | NC | RI | 9 | 22 |
62 pin male D-Connector to eight 9 pin male D-Connectors.
Used on the SY-PCI8871-PR8R
62 pin D-Connector pin numbers | ||||||||||
port 1 | port 2 | port 3 | port 4 | port 5 | port 6 | port 7 | port 8 | Signal | 9 pin | 25 pin |
1 | 22 | 8 | 46 | 15 | 36 | 29 | 53 | TXD | 3 | 2 |
2 | 23 | 9 | 47 | 16 | 37 | 30 | 54 | RXD | 2 | 3 |
3 | 24 | 10 | 48 | 17 | 38 | 31 | 55 | RTS | 7 | 4 |
4 | 25 | 11 | 49 | 18 | 39 | 32 | 56 | CTS | 8 | 5 |
5 | 26 | 12 | 50 | 19 | 40 | 33 | 57 | DSR | 6 | 6 |
43 | 45 | 44 | 44 | 62 | 61 | 60 | 61 | GND | 5 | 7 |
7 | 28 | 14 | 52 | 21 | 42 | 35 | 59 | DCD | 1 | 8 |
6 | 27 | 13 | 51 | 20 | 41 | 34 | 58 | DTR | 4 | 20 |
NC | NC | NC | NC | NC | NC | NC | NC | RI | 9 | 22 |
62 pin male D-Connector to eight 9 pin male D-Connectors. (1WDB-62M04009D8000)
Used on the Sunix SER5066A,SER5466A/H, PCCOM PCI 8PORT RS-232
62 pin D-Connector pin numbers | ||||||||||
port 1 | port 2 | port 3 | port 4 | port 5 | port 6 | port 7 | port 8 | Signal | 9 pin | 25 pin |
23 | 26 | 28 | 31 | 34 | 36 | 39 | 41 | TXD | 3 | 2 |
44 | 47 | 49 | 52 | 54 | 57 | 60 | 62 | RXD | 2 | 3 |
22 | 25 | 27 | 30 | 33 | 35 | 38 | 40 | RTS | 7 | 4 |
43 | 46 | 48 | 51 | 53 | 56 | 59 | 61 | CTS | 8 | 5 |
1 | 4 | 6 | 9 | 12 | 14 | 17 | 19 | DSR | 6 | 6 |
3 | 3 | 29 | 32 | 37 | 37 | 16 | 42 | GND | 5 | 7 |
24 | 45 | 8 | 50 | 11 | 55 | 58 | 21 | DCD | 1 | 8 |
2 | 5 | 7 | 10 | 13 | 15 | 18 | 20 | DTR | 4 | 20 |
NC | NC | NC | NC | NC | NC | NC | NC | RI | 9 | 22 |
68 pin male VHDCI Connector to eight 9 pin male D-Connectors. (CBL-M68M9x8-100)
Used on the Moxa CP-118EL and CP-168EL
68 pin VHDCI Connector pin numbers | ||||||||||
port 1 | port 2 | port 3 | port 4 | port 5 | port 6 | port 7 | port 8 | Signal | 9 pin | 25 pin |
27 | 61 | 25 | 59 | 10 | 44 | 8 | 42 | TXD | 3 | 2 |
34 | 68 | 18 | 52 | 17 | 51 | 1 | 35 | RXD | 2 | 3 |
31 | 65 | 21 | 55 | 14 | 48 | 4 | 38 | RTS | 7 | 4 |
33 | 67 | 19 | 53 | 16 | 50 | 2 | 36 | CTS | 8 | 5 |
28 | 62 | 24 | 58 | 11 | 45 | 7 | 41 | DSR | 6 | 6 |
26 | 60 | 26 | 60 | 9 | 43 | 9 | 43 | GND | 5 | 7 |
30 | 64 | 22 | 56 | 13 | 47 | 5 | 39 | DCD | 1 | 8 |
29 | 63 | 23 | 57 | 12 | 46 | 6 | 40 | DTR | 4 | 20 |
32 | 66 | 20 | 54 | 15 | 49 | 3 | 37 | RI | 9 | 22 |
68 pin male VHDCI Connector to eight 9 pin male D-Connectors.
Used on the Exsys EX-44378
68 pin VHDCI Connector pin numbers | ||||||||||
port 1 | port 2 | port 3 | port 4 | port 5 | port 6 | port 7 | port 8 | Signal | 9 pin | 25 pin |
3 | 10 | 21 | 29 | 37 | 44 | 52 | 63 | TXD | 3 | 2 |
2 | 9 | 19 | 28 | 36 | 43 | 51 | 61 | RXD | 2 | 3 |
6 | 13 | 25 | 32 | 40 | 47 | 57 | 66 | RTS | 7 | 4 |
7 | 14 | 26 | 33 | 41 | 48 | 58 | 67 | CTS | 8 | 5 |
5 | 12 | 24 | 31 | 39 | 46 | 55 | 65 | DSR | 6 | 6 |
15 | 20 | 22 | 49 | 54 | 56 | 59 | 62 | GND | 5 | 7 |
1 | 8 | 16 | 27 | 35 | 42 | 50 | 60 | DCD | 1 | 8 |
4 | 11 | 23 | 30 | 38 | 45 | 53 | 64 | DTR | 4 | 20 |
NC | NC | NC | NC | NC | NC | NC | NC | RI | 9 | 22 |
Pins 34 & 68 unused
Pins 17 & 18 reserved
78 pin male D-Connector to eight 9/25 pin male D-Connectors. (CC-093 9pin) (CC-095 25pin)
Used on the Brainboxes Lynx UC-275, UC-279 and Photon CC-629, CC-662
78 pin D-Connector pin numbers | ||||||||||
port 1 | port 2 | port 3 | port 4 | port 5 | port 6 | port 7 | port 8 | Signal | 9 pin | 25 pin |
30 | 50 | 11 | 10 | 40 | 2 | 63 | 64 | TXD | 3 | 2 |
55 | 17 | 37 | 56 | 28 | 8 | 46 | 27 | RXD | 2 | 3 |
51 | 31 | 12 | 14 | 21 | 41 | 62 | 60 | RTS | 7 | 4 |
16 | 53 | 59 | 57 | 25 | 4 | 9 | 45 | CTS | 8 | 5 |
54 | 34 | 58 | 38 | 5 | 42 | 29 | 26 | DSR | 6 | 6 |
68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | GND | 5 | 7 |
35 | 33 | 39 | 18 | 43 | 23 | 48 | 6 | DCD | 1 | 8 |
49 | 32 | 13 | 52 | 22 | 3 | 61 | 1 | DTR | 4 | 20 |
36 | 15 | 20 | 19 | 44 | 24 | 47 | 7 | RI | 9 | 22 |
Pins 65,66,75,76,77 & 78 unused
78 pin male D-Connector to eight 9 pin male D-Connectors. (CBL-M78M9x8-100)
Used on the Moxa CP-118U-I
78 pin D-Connector pin numbers | ||||||||||
port 1 | port 2 | port 3 | port 4 | port 5 | port 6 | port 7 | port 8 | Signal | 9 pin | 25 pin |
20 | 17 | 15 | 12 | 10 | 7 | 5 | 2 | TXD | 3 | 2 |
78 | 76 | 73 | 71 | 68 | 66 | 63 | 61 | RXD | 2 | 3 |
38 | 36 | 33 | 31 | 28 | 26 | 23 | 21 | RTS | 7 | 4 |
58 | 55 | 53 | 50 | 48 | 45 | 43 | 40 | CTS | 8 | 5 |
59 | 56 | 54 | 51 | 49 | 46 | 44 | 41 | DSR | 6 | 6 |
19 | 16 | 14 | 11 | 9 | 6 | 4 | 1 | GND | 5 | 7 |
77 | 75 | 72 | 70 | 67 | 65 | 62 | 60 | DCD | 1 | 8 |
39 | 37 | 34 | 32 | 29 | 27 | 24 | 22 | DTR | 4 | 20 |
NC | NC | NC | NC | NC | NC | NC | NC | RI | 9 | 22 |
Pins 3,8,13,18,25,30,35,42,47,52,57,64,69 & 74 unused
78 pin male D-Connector to eight 9 pin male D-Connectors.
Used on the SeaCom 7801 (Sealevel COMM+8.PCI)
78 pin D-Connector pin numbers | ||||||||||
port 1 | port 2 | port 3 | port 4 | port 5 | port 6 | port 7 | port 8 | Signal | 9 pin | 25 pin |
36 | 12 | 27 | 3 | 75 | 51 | 66 | 42 | TXD | 3 | 2 |
37 | 11 | 28 | 2 | 76 | 50 | 67 | 41 | RXD | 2 | 3 |
17 | 31 | 8 | 22 | 56 | 70 | 47 | 61 | RTS | 7 | 4 |
16 | 32 | 7 | 23 | 55 | 71 | 46 | 62 | CTS | 8 | 5 |
18 | 30 | 9 | 21 | 57 | 69 | 48 | 60 | DSR | 6 | 6 |
34 | 14 | 25 | 5 | 73 | 53 | 64 | 44 | GND | 5 | 7 |
38 | 10 | 29 | 1 | 77 | 49 | 68 | 40 | DCD | 1 | 8 |
35 | 13 | 26 | 4 | 74 | 52 | 65 | 43 | DTR | 4 | 20 |
15 | 33 | 6 | 24 | 54 | 72 | 45 | 63 | RI | 9 | 22 |
Pins 19,20,39,58,59 & 78 unused
78 pin male D-Connector to eight 9 pin male D-Connectors.
Used on the MRi PCI8S/R
78 pin D-Connector pin numbers | ||||||||||
port 1 | port 2 | port 3 | port 4 | port 5 | port 6 | port 7 | port 8 | Signal | 9 pin | 25 pin |
22 | 27 | 32 | 37 | 61 | 66 | 71 | 76 | TXD | 3 | 2 |
23 | 28 | 33 | 38 | 62 | 67 | 72 | 77 | RXD | 2 | 3 |
3 | 8 | 13 | 18 | 42 | 47 | 52 | 57 | RTS | 7 | 4 |
2 | 7 | 12 | 17 | 41 | 46 | 51 | 56 | CTS | 8 | 5 |
4 | 9 | 14 | 19 | 43 | 48 | 53 | 58 | DSR | 6 | 6 |
5 | 10 | 15 | 20 | 44 | 49 | 54 | 59 | GND | 5 | 7 |
24 | 29 | 34 | 39 | 63 | 68 | 73 | 78 | DCD | 1 | 8 |
21 | 26 | 31 | 36 | 60 | 65 | 70 | 75 | DTR | 4 | 20 |
1 | 6 | 11 | 16 | 40 | 45 | 50 | 55 | RI | 9 | 22 |
Pins 25, 30, 35, 64, 69 & 74 unused