Hmm. From
http://www.retrotechnology.com/herbs_stuff/macmons.txt
“
Here's my hand-traced connections for two of Apple's 13W3 cables. - Herb Johnson
590-0621-A - 13W3 with ONE coax connector, to DB-15 weight 11 ounces, 6 foot long thinner cable than 0615
590-0615-A - 1313 with THREE coax connectors, to DB-15 weight 14 ounces, 6 foot long thicker cable than 0621
Connector scheme of cable (male pins)
DB15: top row 1 to 8 left/right, bottom 9/15
13W3: A3, A2 on left, A1 on right
top row 1-5 left/right, bottom 6-10
590-0621-A (1 coax)
DB15 13W3
3 1
4 7
7 8
9 A1
10 3
11 2 6 9
12 4
13 A1 shield
14 5
15 10
590-0615-A (3 coax)
DB15 13W3
1 A3 shield
2 A3
3 1
4 7
5 A2
6 A2 shield
7 8
9 A1
10 3
11 2 6 9
12 4
13 A1 shield
14 5
15 10
“
Eep.