Datasheet

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Table C-34 Wiring List, DB-15 to DB-25 Adapter Cable (LDI as DCE)
1
Redundancy Cabling
Table C-35 lists the Y-cables used for redundancy for IGX back cards.
Table C-35 Redundancy Y-Cables
DB-15 Pin No.
(LDI) IGX Name
DB-25 Pin No.
(User) Description
1 Shield 1 Frame Ground
2 TxD 2 Transmit Data from DTE
3 CTS 5 Clear to Send
4 RxD 3 Receive Data to DTE
5 RTS 4 Request to Send
6 RxC 17 Receive Clock, connects to DB-25-15
2
7 XTC 24 External Transmit Clock
8 SG 7 Signal Ground
9 DSR 6 Data Set Ready
10 DTR 20 Data Terminal Ready
11 +VS 9 +12V test voltage
3
12 –VS 10 –12V test voltage
3
13 not connected not connected not used
14 DCD 8 Data Carrier Detect (RLSD)
15 MOD n.c. Mode Select, no connection for DCE cable
not connected
2
TxC 15 Transmit Clock, connects to DB-25-17
2
1. You can order this cable in lengths of 10 ft., 25 ft., 50 ft., 75 ft., and 100 ft. The Cisco model number is
CAB-5625-xx, where xx is the length, as follows: 10=10 ft.; 25=25 ft.; 50=50 ft.; 75=75 ft., and 00=100 ft.
2. Pins 15 and 17 connect through a jumper.
3. You can use one of these pins to force a control pin to stay high or low.
Cable Used On Cisco Part No.
EIA/TIA-232C SDI 5624
EIA/TIA-232D SDI 5624
EIA/TIA-232 LDI 5629
V.35 SDI 5635
V.35 SDI special DTE/DCE jumper
EIA/TIA-422/449 SDI 5644
T1 BC-T1 5607
E1 BC-E1 5685