Balanced G.703/Drop & Insert Data (J3); Table 2-14. Balanced G.703/Drop & Insert Data Connectors (J3) - Comtech EF Data SMS-7000 Installation And Operation Manual

SMS-7000 Modem Protection Switch
2.6.2.6 Balanced G.703/Drop & Insert Data (J3)
Primary data for IDR and D&I as well as one of three IBS data options (balanced
G.703/D&I data connector) is facilitated by using a 15-pin female D with one connector
per channel. The pinouts are shown in Table 2-14.
CAUTIO N
Table 2-14. Balanced G.703/Drop & Insert Data Connectors (J3)
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Rev. 3
When using this port for other than IDR data, be certain there is no
connection to the J6 (EIA-422) or J1 (V.35) ports. When using G.703 data,
all data switch modules must have jumper JP1 in EIA-422 position (with
jumpers connecting the middle pin and the pin closest to the front of the
switch module).
IBS
SD A SD A
GND GND
RD A RD A
GND GND
Open Open
Open Open
EXC_A EXC_A
EXC_B EXC_B
SD B SD B
Open Open
RD B RD B
Open Open
Open Open
Open Open
Open Open
Signal Name
IDR
DDI-A
GND
IDO-A
GND
DDO-B
IDI-B
EXC_A
EXC_B
DDI-B
Open
IDO-B
DDO-A
IDI-A
Open
Open
Installation
D&I
2–33