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D-8
TRUNK TYPE AND SIGNALING TYPE COMPATIBILITY TABLES
Table D-4, Signaling Type Definitions, provides definitions for the signaling types used in the other
three tables in this appendix.
TABLE D-4. Signaling Type Definitions
Mnemonic
EOU Definition
Trad. Circuits
Hybrid Circuits
no_signal_req
00
no signaling required NA
NA
ground_start
01
ground start
SN230, ANN11
TN747B, TN767
ground_start_w_pt
02
ground start with party test
SN230
None
loop_rev_battery_ws
03
loop/reverse battery, wink start
SN232, ANN11
TN753, TN767
em_is_in_is_out
04
e&m immed. start in and out SN233, ANN11
TN760C, TN767
em_ws_in_is_out 05
e&m wink start in, immed. start out SN233, ANN11
TN760C, TN767
ani_signaling
06
ani signaling
SN244
None
auxiliary_equipment
07
auxiliary equipment
SN232
TN763B
em_dd_in_is_out
08
e&m delay dial in and immed. start out SN233, ANN11
TN760C, TN767
em_dd_in_wdd_out_ w_dt
09
e&m delay dial in, wink/delay dial SN233, ANN11
TN760C, TN767
with dial tone out
em_ws_in_wdd_out_w_dt
10
e&m wink start in, wink/delay dial SN233, ANN11
TN760C, TN767
with dial tone out
em_ws_in_wdd_out
11
e&m wink start in, wink/delay dial out SN233, ANN11
TN760C, TN767
also known as universal sequence
em_is_in_wdd_out
12
e&m immed. start in, wink/delay dial out SN233, ANN11
TN760C, TN767
em_rls_link_trunk_out
13
e&m release link trunk out SN233, ANN11
TN760C, TN767
em_rls_link_trunk_in
14
e&m release link trunk in SN233, ANN11
TN760C, TN767
em_main_satellite_is
15
e&m main satellite, immediate start
SN233, ANN11
TN760C, TN767
em_main_satellite_ws
16
e&m main satellite, wink start SN233, ANN11
TN760C, TN767
em_main_satellite_dd
17
e&m main satellite, delay dial SN233, ANN11
TN760C, TN767
s_channel_signaling
18
's' channel signaling, host access-gpp SN270, SN238
TN754, TN726
" channel signaling, host access-eia
loop_start
19
loop start ANN11 TN767
dmi_isdn-mos
20
digital multiplex interface isdn mos
ANN35 TN767/TN555 pair
em_ws_in_ws_out
21
e&m wink start in, wink start out SN233, ANN11
TN760C, TN767
em_dd_in_dd_out
22
e&m delay dial in, delay dial out SN233, ANN11
TN760C, TN767
em_dd_in_wdd_out
23
e&m delay dial in, wink/delay dial out SN233, ANN11
TN760C, TN767
em_dd_in_wddfot_out
24
e&m delay dial in, wink/delay dial out SN233, ANN11
TN760C, TN767
with fail on timeout
em_is_in_wddfot_out
25
e&m immediate start in, wink/delay dial out
SN233, ANN11
TN760C, TN767
with fail on timeout
em_ws_in_wddfot_out
26
e&m wink start in, wink/delay dial out SN233, ANN11
TN760C, TN767
with fail on timeout
analog_line_loop
27
analog line loop
SN243
TN742
em_auto_in_is_out
28
e&m auto in immed. start out SN233, ANN11
TN760C, TN767
em_auto_in_ws_out
29
e&m auto in wink start out SN233, ANN11
TN760C, TN767
loop_rev_battery_is
30
loop/reverse battery immediate start
SN232, ANN11
TN753, TN767
em_is_in_auto_out
31
e&m immediate start in, auto out
SN233, ANN11
TN760C, TN767
em_auto_in_auto_out
32
e&m auto in, auto out SN233, ANN11
TN760C, TN767
e&m — ear and mouth