Nortel Networks Video Gaming Accessories 553-3001-211 Manual De Usuario

 NT7D16 Data Access card

This mode should be selected when the DAC is connected to a gateway for 
inbound and outbound operation. The characteristics of the gateways to be 
used with this mode are:

Auto-answer capability This feature is required when the gateway is used 
for inbound operation. It allows the gateway to drive the DCD lead ON when 
the inbound data call is pending. In addition, the gateway should auto-answer 
when the DTR lead is ON.

Dynamic control of DCD This feature must be supported by all gateways to 
be connected to the DAC. It allows the gateway to drive the DCD lead ON 
when the data call is established, and OFF when the data call is disconnected.

In the inbound operation, the DAC drives the DTR lead OFF until the 
gateway drives the DCD lead ON. Then, the DAC drives DTR ON and makes 
that unit busy for any outbound calls. After that, the user of the gateway may 
enter the proper commands to establish a local data call to any DM.

pin 2
pin 3
pin 5
pin 6
pin 7
pin 8
pin 20
pin 22

TX
RX
CTS
DSR
GND
DCD
DTR
RI

DAC (DTE)

Gateway (DCE)

(not required)

RS- 232 leads

>>>

<<<
<<<

<<<

<<<

<<<

>>>

(not required)

553-5217