3
rd
Generation Rack-
Mount RDMS™
15
Quasonix, Inc.
3.3.2.1
1U Digital Output MDM-25 D-Sub Pinout-J9
The pinout for the 1U J9, an MDM-25 D-sub connector, is shown in Table 6. Pin locations are illustrated in Figure
8.
Table 6: 1U Digital Output MDM-25 D-Sub Pinout (J9)
Pin
Electrical Char.
Pin
Electrical Char.
1
GND
14
CH1 CLK B (TTL)
2
GND
15
CH1 DATA B (TTL)
3
CH1 Demod Lock (TTL)
16
CH1 Ones Detect (TTL)
4
CH1 SDI (RS-423)
17
GND
5
N/C
18
N/C
6
GND
19
CH2 CLK B (TTL)
7
GND
20
CH2 DATA B (TTL)
8
CH2 Demod Lock (TTL)
21
CH2 Ones Detect (TTL)
9
CH2 SDI (RS-423)
22
GND
10
COMB SDI (RS-423)
23
COMB Ones Detect (TTL)
11
COMB Demod Lock (TTL)
24
COMB Data B (TTL)
12
GND
25
COMB CLK B (TTL)
13
GND
3.3.2.2
1U RS-422 Output MDM-25 D-Sub Pinout-J23
The pinout for the 1U J23, an MDM-25 D-sub connector, is shown in Table 7. Pin locations are shown in Figure 8.
Table 7: 1U RS-422 MDM-25 D-Sub Pinout (J23)
Pin
Electrical Char.
Pin
Electrical Char.
1
CH1 CLK A RS-422_p
14
CH1 CLK A RS-422_n
2
CH1 DAT A RS-422_p
15
CH1 DAT A RS-422_n
3
CH1 CLK B RS-422_p
16
CH1 CLK B RS-422_n
4
CH1 DAT B RS-422_p
17
CH1 DAT B RS-422_n
5
CH2 CLK A RS-422_p
18
CH2 CLK A RS-422_n
6
CH2 DAT A RS-422_p
19
CH2 DAT A RS-422_n
7
CH2 CLK B RS-422_p
20
CH2 CLK B RS-422_n
8
CH2 DAT B RS-422_p
21
CH2 DAT B RS-422_n
9
COMB CLK A RS-422_p
22
COMB CLK A RS-422_n
10
COMB DAT A RS-422_p
23
COMB DAT A RS-422_n
11
COMB CLK B RS-422_p
24
COMB CLK B RS-422_n
12
COMB DAT B RS-422_p
25
COMB DAT B RS-422_n
13
GND
