Access System Manager ASM-24 (Rev 1.2) Installation & Application Guide
Page 12 of 18
Access System Manager
M
ODEM
(RS232) N
ETWORKS
& C
ABLING
R
EQUIREMENTS
To ensure proper network communications, particularly RS232, its strongly recommended that you use tested
modem cable and the proper networking requirements:
Item
Description
Cabling
The modem connection to the ASM requires a modem cable available from Delta
Controls. As a modem cable is a kind of serial cable.
•
RS232 (CBL931-1)
Modem cable available from Delta Controls
Product Number
Description
CBL931-1
MALE DB25 connector, Wieland connector, 10 ft (3 m)
Modem Cable With DB25
The cable end with the DB25 connector connects to the modem. The other end
connects to the COM 1 port on the ASM, as shown in the following figure.
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
F1
2 AMP
SLO-BLO
Off On
1
2
4
8
16
32
64
128
698135 Rev 1.0
Delta Controls © 2001
ADDRESS
AREA
SYSTEM
SUBNET
DNA
RUN
CLEAR
5
4
RS232
123
TX
GND
RX
DCD
DTR
RX
TX
2
1
RS485
+ NET2 -
ACT
Link
POWER
SCAN
2
1
RS-485
TX
+ NET1 -
RX
POWER
24~
GND
2
1
AC
PWR IN
ASM
Modem Cable Pin Out at
Male DB25 Connector
25 pin D connector
(Modem End)
DTR (20)
DB25 Pins
DCD (8)
GND (7)
TX (3)
RX (2)
5
4
RS232
12
3
TX
GND
RX
DCD
DTR
COM 1
Shielded Multi-
Conductor Cable
DB25 Pins
