Nortel Circuit Card Installation Manual page 436

Page 436 of 906
Table 157
DAC mode of operation selection (Part 1 of 5)
Service changeable downloadable parameters (LD 11)
Modem/
Operation Gateway/
mode Host/KBD
DEM PRM
0 (DTE) OFF
"Host On"
(Ring
Indicator
— RI)
1 (DTE) OFF
"Host On"
(RI)
* Not prompted for Type = R422. Defaults for Type = R422: DEM = DCE and DTR = OFF.
553-3001-211 Standard 3.00
NT7D16 Data Access card
The fourth mode, gateway, is a subset of the modem mode and is not normally
used. This mode is useful if the attached modems do not have Ring Indicator
lead. The application used is inbound modem pooling.
The different modes enable the DAC to connect to different types of devices
such as modems (modes 0, 1, 2, and 3), gateways (modes 4, 5. 6, and 7), hosts
(modes 8. 9. 10, and 11), and terminals (modes 12. 13. 14, and 15). After
selecting the appropriate group (that is, modem, gateway, host, or terminal),
the installer should study the four different modes in that group to make the
proper selection. See Table 157.
Forced
DTR*
DTR
OFF
Not
Forced
OFF
Not
Forced
August 2005
Type of device
Hotline to be connected
HOT
OFF Modem Pool
Not inbound and
Hotline outbound (similar
to Synchronous /
Asynchronous
Data Module
(SADM) in
inbound) MSB by
RI
ON Modem Pool
Hotline inbound only
(Hotline by RI-
similar to SADM)
Group selection
Modes 0, 1, 2,
and 3 are for
RS232 modem
connectivity