Configuring Individual Modems; Hp 50759A (Support Link) Modem; Settings - HP 3000 99x Family Installation Manual

Configuring Individual Modems
This section gives configuration information for five different modems.

HP 50759A (Support Link) Modem

Supported modes:
Bell
CCITT_OM
CCITT_AM
CCITT_BIS_OM
CCITT_BIS_AM
Supported cables:
HP 92219Q - Bell, CCITT_OM, CCITT_AM
A1703-63006 - CCITT_BIS_OM, CCITT_BIS_AM
Auto-dial modes: Hayes
This modem is the standard HP Support Link. It supports V.22bis line discipline, but does
not support V.25bis auto-dialing. In order for V.22bis answer mode to work properly, DSR
must follow OH. Data Compression should be set OFF. Setting data compression ON can
cause problems when connecting to other modems that do not have data compression.

Settings

Two sets of configuration switches on the HP 50759A are on the underside of the modem.
One set (Set S) consists of eight switches. The other set (Set X) consists of four switches.
See Figure C-1.
Configure the modem by setting these switches to either of two positions: UP or DOWN
(depressed).
NOTE A firmware upgrade that involves replacing two chips for MPE and
MPE/iX systems is not necessary for HP-UX systems. If the upgrade is
installed, there is no effect on the modem's switch settings.
Appendix C
Configuring the Remote Support Modem
Configuring Individual Modems
C-7