AT&T DEFINITY 2500 series Network Manual page 298

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