Fuses
100-120V Sentry Power Distribution Units may be equipped with fuses to protect each internal power
branch. Replacement fuses must meet the following requirements:
PTPD-x0xx
models
PTPD-VE18
models
Type
Fast-acting ceramic
Time-delay ceramic
Form factor
¼”x 1-¼”
5mm x 20mm
AC Voltage Rating
250V
250V
Amperage Rating
15A
10A
Interrupt Rating @125V
10000A
N/A
Cooper-Bussman Part Number*
ABC-15
S505-10A
*
Server Technology recommends the use of Cooper-Bussman fuses available through Graybar or Brill Electronics
NOTE: PTPDs have two or three internal power branches.
8-port:
Branch A – ports A1-A4 or 1-4, Branch B – ports B1-B4 or 5-8
16-port: Branch A – ports A1-A4 & B1-B4 or 1-8, Branch B – ports C1-C4 & D1-D4 or 9-16
18-port: Branch A – ports 1-6, Branch B – ports 7-12, Branch C – ports 13-18
Data Connection (PTPD-x0 models only)
RS-232 Serial port
Sentry Power Distribution Units are equipped standard with an RJ45 RS-232c serial port. This
connector may be used for direct local access or from other serial devices such as a terminal server. An
RJ45 crossover cable is provided for connection to an RJ45 DTE serial port.
Pin
DTE Signal Name
Input/Output
1
Request to Send
RTS
Output
2
Data Terminal Ready DTR
Output
6
7 54321
8
3
Transmit Data
TD
Output
4 Signal
Ground
5
Signal Ground
6
Receive Data
RD
Input
7
Data Set Ready
DSR
Input
8
Clear to Send
CTS
Input
RJ45 to DB9F serial port adapter
Additionally, an RJ45 to DB9F serial port adapter is provided for use in conjunction with the RJ45
crossover cable to connect to a PC DB9M DTE serial port. The adapter pinouts below reflect use of the
adapter with the provided RJ45 crossover cable.
Pin
DCE Signal Name
Input/Output
1
2 Receive
Data
RD Output
1
2
3
4
5
6
7
8
9
3 Transmit
Data TD
Input
4
Data Terminal Ready DTR
Input
5
Signal Ground
6
Data Set Ready
DSR
Output
7
Request to Send
RTS
Input
8
Clear to Send
CTS
Output
18
•
Appendices
Sentry Power Tower Power Distribution Unit
Technical Specifications
Installation and Operations Manual