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ADCP-50-304 • Issue 19 • June 1999 • Section 3: PatchSwitch V.35
Page 3-3
© 1999, ADC Telecommunications, Inc.
Figure 3-2. V.35 Interface Module and Conversion Board
Table 3-2. Normal Pin Assignments
V.35 PIN NAME ORIGIN
SIGNAL
DESCRIPTION
DB-25
CONNECTOR PIN
A FG Frame Ground 1
B SG Signal Ground 7
C RTS DTE Request to Send 4
D CTS DCE Clear to Send 5
E DSR DCE Data Set Ready 6
F DCD DCE Data CXR Detect 8
H DTR DTE Data Term Ready 20
J RI DCE Ring Indicator 22
P TD (+) DTE Trans Data (+) 2
S TD (–) DTE Trans Data (–) 14
R RD (+) DCE Rec Data (+) 3
T RD (–) DCE Rec Data (–) 19
U TCE (+) EXT Trans Clck Ext (+) 24
W TCE (–) EXT Trans Clck Ext (–) 23
STATUS, DELAY, AND
ALARM CIRCUITS
FRONT LOADING BOARD
PATCH
MODULE
A
C
REAR BOARD
FEMALE A
FEMALE C
V.35
BACKPLANE
1624-A