ZyXEL Communications 2864 Series User Manual page 104

Code Bits
Q2 (1)
(0)
Note: Bits (6,5,4,3) enable ring detection on a combination of four ring
types. All zeroes enable ring detection on any ring longer than
100ms. Please refer to Chapter 13 for details on EDR operation.
S41 Bit-mapped register, default: 0:
Code Bits
(7)
(6)
(5)
(4)
(3)
(2)
(1)
(0)
S42 Bit-mapped register, default: 0:
Code Bits
(7)
(6)
Bin. Dec. Description
1 2 The modem does not return result codes
when answering. No RING or CONNECT
message.
Reserved.
Bin. Dec. Description
1 128 Ignores calling tone. Not for fax detection.
1 64 Does not answer on the first ring, forces
S0 2.
1 32 DSR follows CD, off for 0.5s after a CD on-off
transition. (See &Sn)
1 16 If one of X2-X7 is set, the modem waits for
the number of seconds set in register S6
before dialing, and it ignores the dial tone
detection.
1 8 Enables ITU-T signals 140 and 141 on
EIA-232D interface.
1 4 Extends the retrain time-out timer to
5 minutes. (See *Qn, S27b6)
0 0 Selects flag idle in V.25bis HDLC.
(Default; see *I1, S17b6)
1 2 Selects mark idle in V.25bis HDLC.
1 1 Special MNP compatibility. (See also &Kn,
S27b0, S38b5)
Bin. Dec. Description
1 128 CD pulses off for 0.5 sec at carrier loss, CD
is always on otherwise.
1 64 Disables RINGING result code. (See
ATXn)
8–18