Athena Access

16 Port Asynchronous Expansion Module Specification Sheet.

Features

Ø Port Size 16 Asynchronous (X.3) ports.

Ø Indicators One Bi-colour LED per port, Green = Device Connected.

Ø Emulation Both DTE and DCE supported via cable

Ø Baud Rates 50bps through 115Kbps

Ø Data Options 5 – 8 bit data plus parity.

Ø Parity Options Odd, even, mark, space and none.

Ø Flow Control Hardware (RTS/CTS), Software (XON/XOFF) and none.

Ø Ring Indicator Input Available in DTE configuration only.

Ø Link Break Both line break detection and generation supported.

Ø FIFO 16 Byte transmit and receive per UART

Ø Error detection parity, framing and overrun.

Ø Physical EIA232/E (V.24), 8 Pin RJ45

Ø Protocols X.3, X.28. X.121, X.29

Expansion Module

The 16 port Asynchronous Expansion Module, Develcon part number B31700 installs on an Athena Access mother board. The ports are accessible via RJ45 connectors from the rear of the unit.

RJ45 port Connectors.

The Athena Access 16-Port Async Expansion module provides 16 RJ-45 female connectors on the rear of the chassis. Connections to TIA-232/V.24 devices are provided by standard RJ-45 Male-Male cables and a DCE or DTE adapter, as required.

The DCE adapter allows the Access to provide the signals on the DB-25 Female connector to emulate a DCE device. Terminal type devices can be directly connected to this adapter.

The DTE adapter allows the Access to provide the signals on the DB-25 Male connector to emulate a DTE device. The adapter can be directly connected to TIA-232/V.24 modems.

RJ-45 Interface		DCE Emulation		DTE Emulation
Pin	Signal	Signal Description	DB25 Pin	Signal Description	DB25 Pin
1	Input			Ring Indicator	22
2	Output	Data Carrier Detect	8 & 6	Data Terminal Ready	20
3	Input	Data Terminal Ready	20	Data Carrier Detect	8
4	Sig. Gnd	Signal Ground	7	Signal Ground	7
5	Output	Receive Data	3	Send Data	2
6	Input	Send Data	2	Receive Data	3
7	Output	Clear to Send	5	Request to Send	4
8	Input	Request to Send	4	Clear to Send	5