S Registers - Nortel Meridian SL-100 Reference Manual

The
zero (modem emulation), but the values in registers S52, S53, and S54 do
not match one of the standard Hayes product codes previously mentioned.
To emulate a modem with a product code not mentioned above, select any
one of the emulation screens from the P66 menu. (This is done to cause the
S66 register to be zero. The S66 register can also be set to zero manually).
Then, manually assign a different product code to the S52, S53, and S54
registers.
As an example, if Screen 1 of the P66 command is chosen, the registers
contain the following values:
The values in the registers are not straightforward. The value of 57 in the
S52 register is obtained by first taking the ASCII value of the desired
number, 9 = 39h, and converting this 39h to the decimal value of 57. This
conversion is necessary for two reasons. First, letter assignments are not
allowed as part of the product code where the ASCII chart shows numeric
values for letters as well as numbers; secondly, ASCII codes cannot be
entered directly into the registers because all S registers must contain
decimal values only.
Therefore, to change the value of the S52 register to number 5, first realize
that the ASCII value for a 5 is 35h; then convert the ASCII value to the
decimal value, 53. With this value known, then the S52=53 command is
used to assign the value to the register.
Note: This allows the technician the capability to assign any ASCII
character (letters included) to any of the S52, S53, and S54 registers as
needed for product codes.

S registers

The S registers (S0 to S69) may be used to program various call setup
parameters. To query the value of a particular S-register, enter the command
as follows: Sr?
Meridian SuperNode MSL-100 Meridian Modular Telephones Reference Manual MSL11
SPEED RESTRICTION xxx
HAYES COMPATIBLE MODEM
SPEED RESTRICTION xxx
NT KBD DIALING
HAYES COMPATIBLE MODEM
S66 = Hayes
S52 = 579 (39h ASCII value)
S53 = 546 (36h ASCII value)
S54 = 480 (30h ASCII value)
Hayes keyboard dialing 9-5
prompt appears when the S66 register is