Pentek Model 78661 Installation Manual
Page 21
Rev.: 1.7
2.10
PCIe Carrier Connectors
The following subsections describe the power and signal connectors on the PCIe car−
rier. Refer to
on the prior page for location of the connectors on the PCB.
2.10.1
Power Connector
The PCIe carrier uses a 6−pin power connector,
labeled
J23
, to 12V power to the XMC mod−
ule. This is a standard PCI Express power connector
used in PCs with a PCI Express bus.
Pins 1, 2, and 3 are +12 VDC
Pins 4, 5, and 6 are ground
NOTE:
You
must
provide a power source to this
connector or the XMC module will not operate.
Pentek includes a PCIe to Molex adapter cable (part # 002.21790)
with the Model 78661 shipment.
2.10.2
JTAG Connector
The JTAG
J4
connector provides a connection to download programs and to
perform boundary−scan tests on PCIe carrier devices. This connector is
reserved for Pentek factory use only. The pinout for this 14−pin header is
given in the following table.
2.10.3
Fan Connector
Connector
J8
on the PCIe carrier PCB provides a +12VDC power source for
use by the cooling fan.
Table 2
−
10: JTAG J4 Connector
Signal
Pin Number
Pin Number
Signal
Gnd
1
2
+3.3 V
Gnd
3
4
TMS
Gnd
5
6
TCK
Gnd
7
8
TDO
Gnd
9
10
TDI
Gnd
11
12
TRST_N
Gnd
13
14
No Connection
1
3
5
7
9
11
13
2
4
6
8
10
12
14