Black Box LR1530A-EU-R3 - Manual (Page 92)

Servicing Information
86
V.11 / X.21 DB25 to DB15
Connector Cable
Figure C-10 V.11 / X.21 DB25 to DB15 Connector Cable
NOTE For U.K. Approval:
The connecting cable may be any length between 0 and 5M.
DB25 MALE
1
DB15 MALE
2
3
10
8
20
16
12
23
1
4
8
5
12
13
9
6
11
3
10
Protective Ground
Transmit Data (A)
Receive Data(A)
Indication (A)
Signal Element Timing (A)
Signal Ground
14
15
7
Indication (B)
Transmit Data (B)
Control (B)
Receive Data (B)
Control (A)
Signal Element Timing (B)
Protective Ground
Transmit Data (A)
Control (A)
Signal Element Timing (A)
Receive Data (A)
Indication (A)
Signal Ground
Transmit Data (B)
Control (B)
Receive Data (B)
Indication (B)
Signal Element Timing (B)