
TRANSPORT
®
1250 P ower and Alarm Card
Configuration Guide
1250 Front View
Part Number 45-00007
Revision 2.0
ALARM &
POWER
123
1234
O
N
–
CHASSIS
ADDRESS
1 2 3 4 5 6 7 7
POWER
NORMAL
SILENT
ACO
1250 Controls and Indicators
Index Indicator Description
1 CHASSIS ADDRESS DIP switch which provides up to 8 chassis addresses.
2 POWER Indicates that power is being supplied to the unit.
3 NORMAL/SILENT Normal enables the ACO (Alarm Cut Off).
Silent disables the ACO.
4 ACO The Alarm Cut Off LED indicates that the alarm
relay contacts are disabled.
5 ALARM This LED indicates that an APS shelf alarm has
occurred.
6 FUSE ALARM This LED indicates that a bus fuse has blown.
7 3 AMP GMT Two 3 Amp fuse for power source A/B.
ALARM
®
A
FUSE
ALARM
3 AMP
B
TRANSPORT
GMT
1250
NOTES: 1250 cards that are Rev. 2.63 or
higher add the capability to maintain alarm
card functions (front panel indicators, switch
functions, and relay operation) even when
Fuse A and B are open. This is possible because these cards have the alarm circuitry
wired to the ‘hot’ side of the incoming A and
B external power source(s). In early revisions, the 1250 alarm functi ons were only operational if one or more of the front panel
fuses were functional (not blown).
Earlier versions of the 1250 card were called
1555P cards. The function of each card is the
same.
Chassis Address Selection
Each APS chassis must be assigned a block of addresses for its 1557 APS
cards so that the 1559 APS Manager may communicate with them. The DIP
switch located on the front panel of the 1250 Alarm and Power C ard is used
to provide up to 8 chassis addresses. These addresses are used by the APSM
to poll and send commands to the 1557 cards.
Three out of the four switches (S2, S3, and S4) are set to one of the 8 possible address codes as shown in the table to the right. The DIP switch positions are number S1 thr ough S4, with S1 on top an d S4 on bottom. Not e that
S1 is not used.
The first unit address (1557 card) in the chassis is the base address plus 1.
For example, if S2, S3, and S4 were all set to 0, the first unit address in the
chassis would be ‘1’ (0 + 1).
Chassis Addresses
Chassis
Number
10 to 27000
2 32 to 59 0 0 1
3 64 to 91 0 1 0
4 96 to 123 0 1 1
5128 to 155100
6160 to 187101
7192 to 219110
8224 to 251111
Base
Address
S2 S3 S4

1050 Chassis Rear View
Power and Alarm Position
J1
J2
C14 C13 C12 C11 C10 C9 C8 C7 C6 C5 C4 C3 C2 C1
J3
J4
REMOTE ALARMS/ CONTROL
J5
TB1
J6
J7
J8
J9
Front Panel
(see other side)
21
36
C15
Pin C15 Function
1 -48 VDC - Primary
5 48 VRTN
9 -48 VDC - Secondary
18 Alarm NC
19 Alarm NO
35
20 Alarm Common
29 NMS In
30 NMS Out
34 NMS Ground
3 Amp
GMT Fuses
Contacts
:
Primary
Name:
Phone:
Location:
Date installed:
Date last serviced:
Slot number:
Chassis number:
Fuse number: Source A:
Source B:
FUSE
F1
Secondary
1250 Power and Alarm Card
TxPORT Customer Service
127 Jetplex Circle
Madison, Alabama 35758
Customer Service
800-926-0085, ext. 227
Product Technical Supp or t
(8 a.m. to 5 p.m. Central Time)
800-285-2755 or
205-772-3770
Emergency After Hours
800-285-2755
E-Mail (Internet Address):
support@txport.com