Specifications

SOFTWARE CONFIGURATION AE/LZB 119 1897 R1A
65
6.3.3 ZyXEL Modems
6.3.3.1 Dedicated Line Configuration (Typical)
The following procedure provides basic programming instructions for ZyXEL™ U-1496 series modems when employed
in a C3 Maestro console-to-CIM dedicated 4-wire line control data link. These modems are available in desk-top and rack-
mount versions. ZyXEL modems (and related accessories) are stocked under part numbers 19A149786P6 thru P14. They
feature front panel programming via a simple keyboard, an LCD and several LED status indicators; therefore the use of an
external terminal or terminal emulation software running on a PC is not required.
Unless otherwise noted in bold print, both
modems in a modem pair are programmed identically:
1.
If necessary, using the modem’s RESET submenu, reset the modem to the factory default configuration. Refer to
ZyXEL modem user’s manual for specific instructions.
2.
Access the modem’s TERMINAL OPTIONS submenu and set each of the following options to the required setting:
OPTION REQUIRED SETTING
DATA FORMAT ASYNC
CHARACTER LENGTH 10
COMMAND SET AT
DTE RATE OPTIONS FIXED AT DTE RATE
DTR OPTIONS 108.2 + RST
DCD OPTIONS TRACKS CARRIER
RTS OPTIONS IGNORED
DSR OPTIONS DATA SET READY
COMMAND ECHO DISABLED
RESULT CODE DISABLED
DATA ASYNC SPEED 9600
3.
Access the modem’s MODEM OPTIONS submenu and set each of the following options to the required setting:
OPTION REQUIRED SETTING
LINK OPTIONS V.32 9600T
QUALITY ACTION AUTO RETRAIN
DEFAULT DIAL PH0
DIAL BACKUP DISABLED
GUARD TONE NONE
RDL REQUEST DENY
LLINE TX POWER
0 DBM (or as required; use -15 DBM if line
loss is 0 dBm)
PHONE JACK SINGLE RJ11
MAKE/BREAK RATIO 39% / 61%
SECONDARY CHANNEL DISABLED
PANEL LOCK
UNLOCK (or as required)
SYNC CLOCK
MASTER
= CEC/IMC modem
SLAVE
= console modem
AUTO HANDSHAKE
ORIGINATE
= CEC/IMC modem
ANSWER
= console modem
LINE TYPE 4W LEASED