Verilink C100 (880-502893-001) Product Manual Manual de usuario descargar pdf (Pagina 109)

Interfaces and Cables

6/15/99

Verilink C100 and C150 T1/FT1 CSU/DSU

C-3

RS232/RS530/RS4

22 channel

interfaces

The DB25 pin female on the rear of the unit may be used for either

RS232 or for RS422/RS530 interfaces based on the interface selection

on the DIP switches or console. This interface will appear as a DCE

(modem) to the Customer Equipment. When RS232 is selected, the

interface on the rear of the unit will appear as follows:

Table C-3 DB25 Pin Female Connector Wiring on Rear of Unit When RS232 Is Selected

RS530/422 interface

When RS530/422 interface is selected, the signals on the DB25 pin

connector will also appear as a DCE (modem) to the Custome

Equipment. The interface actually is wired for RS530. A 25 pin to 37

pin RS422 adapter cable (not supplied) must be used for RS422.

wiring diagram for the RS422 cable is included at the end of this

section. When RS530 is selected, the interface on the rear of the unit

will appear as follows:

Pin Number Signal Name Direction

1 Shield both ways

2 Transmitted Data to T-1 CSU/DSU

3 Received Data from T-1 CSU/DSU

4 Request to Send to T-1 CSU/DSU

5 Clear to Send from T-1 CSU/DSU

6 DCE Ready from T-1 CSU/DSU

7 Signal Ground both ways

8 Carrier from T-1 CSU/DSU

15 Transmit Signal Element Timing from T-1 CSU/DSU

17 Receiver Signal Element Timing from T-1 CSU/DSU

20 Data Terminal Ready to T-1 CSU/DSU

24 DTE Transmit Signal Element

Timing

to T-1 CSU/DSU

1 2 ... 104 105 106 107 108 109 110 111 112 113 114 ... 134 135

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Verilink C100 (880-502893-001) Product Manual Manual de usuario Pagina 109