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E-6 LEAD DEFINITIONS
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Table E-5. CCITT V.35 LEADS/DEFINITIONS
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PIN CCITT EIA LEAD DESCRIPTION MPDM
NO. INTERCHANGE EQUIVALENT (FUNCTION) INPUT/
CIRCUIT CIRCUIT OUTPUT
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A — — Unassigned —
B 102 AB Signal Ground —
C 105 CA Request to Send I
D 106 CB Clear to Send O
E 107 CC Data Set Ready O
F CF 109 Received Line Sig Detector O
H CD 108/2 Data Terminal Ready I
J CE 125 Calling Indicator O
K — — Unassigned —
L LL 141 Local Loopback I
M — — Unassigned —
N RL 140 Loopback/Maintenance Test I
(Remote Loopback)
R BB(A) 104 Receiver Data O
T BB(B) 104 Receiver Data O
V DD(A) 115 Receiver Sig Element Tmg O
X DD(B) 115 Receiver Sig Element Tmg O
Y DB(A) 114 Transmitter Sig Element Tmg O
AA DB(B) 114 Transmitter Sig Element Tmg O
P BA(A) 103 Transmitted Data I
S BA(B) 103 Transmitted Data I
U DA(A) 113 Transmitter Sig Element Tmg I
Z — — Unassigned —
W DA(B) 113 Transmitter Sig Element Tmg I
BB — — Unassigned —
CC — — Unassigned —
DD — — Unassigned —
EE — — Unassigned —
FF — — Unassigned —
HH — — Unassigned —
JJ — — Unassigned —
KK — — Unassigned —
LL — — Unassigned —
MM — — Unassigned —
NN TM 142 Test Indicator O
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