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SMS-7000 Modem Protection Switch
2.6.2.2
V.35/EIA-232-C Terrestrial Data (J1)
The V.35 terrestrial data connector (one of three IBS data options) is a 25-pin female D,
with one connector per channel (refer to Table 2-10).
CAUTIO N
Table 2-10. V.35/EIA-232 Terrestrial Data Connectors (J1)
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Note: For all eight switch modules, JP1 must be either set all EIA-232 or all
EIA-422/V.35/G.703 (JP1 set in the EIA-422/V.35/G.703 position works for most
applications).
Rev. 3
When using this port, be certain there is no connection to the J6 (EIA-422)
or J3 (G.703) ports. When using EIA-232 data, all data switch modules
must have jumper JP1 in EIA-232 position (with jumpers connecting the
middle pin and the pin furthest from the front of the switch module). For
V.35, all jumpers must be in EIA-422 position.
IBS V.35
SHIELD
SD A
RD A
RTS
C
CTS
A
DSR
B
SIG GND
L
RLSD
E
SCR B
SCTE B
SCT B
R
E
SD B
M
SCT A
O
RD B
V
SCR A
E
D
EXC A
EXC B
SCTE A
Signal Name
IDR
D&I
SHIELD
SD
RD
C
RTS
A
CTS
B
DM
L
SIG GND
E
RR
EXT CLK
R
E
M
O
ST
V
E
RT
D
(TT)
A
Installation
EIA-232-C
2–29
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