Telenetics MIU Dial or Leased Line modem with RS-485 Manual de usuario descargar pdf (Pagina 15)

CIU Installation, Operation & Diagnostics Edition: June 17, 2003

Page C-1

SB-1 Closed(ON) DC Terminated

SB-2 Closed (ON) Line Termination

SB-3 & -4 Open (OFF) 4- wire

SA-1 Open (OFF) RTS follows CTS no delay

SA-2 Open (OFF)

SA-3 Closed (ON) RTS (always ON by MIU internal J7 (1/2)

setting) enables TxEN)

SA-4 Open (OFF) TxD will not disable RxD

MIU S3 (external)

SW-1 Closed (ON) MIU is configured for RS485 Module (RS485 RxD

(Output) to Modem TxD (input))

SW-2, -3 & -4 Open (OFF)

SA2 & SA3 can be configures for TxD enable TxEn signal if there

are several master locations in the network.

SA2 is Closed (ON) TxD (transmit data) enables TX (Driver Output Enable)

+ 5ms

SA3 is Open (OFF) TxD will not disable RxD

MIUXXXX/485 Final Connection

Ensure that MIUXXXX/485 J7 (internal jumper) 1/2 is connected

APPENDIX C.

CONNECTOR DIAGOSTICS

RS485

CONNECTION FAILURE

1 2 ... 10 11 12 13 14 15 16

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Telenetics MIU Dial or Leased Line modem with RS-485 Manual de usuario Pagina 15