Verilink 1558D (CG) Configuration/Installation Guide - Manual (Page 4)

1558D Block Diagram
B
NET
Power
COM Bus
Rx
Supply
±12 VDC
+5 VDC
Tx
Line
Deframer
NET A
Framer
Loop
Line
Protection
Fac/Local
Loop
PLB
APS
Select
Path A/B
Bridge
Jack
Receive
Jack
NET A
Bridge
Jack
Transmit
Jack
A
RJ48
Line
Protection
NET
Rx
Tx
Line
Deframer
NET B
Framer
Loop
Line
Protection
Fac/Local
Loop
PLB
Bridge
Jack
Receive
Jack
NET B
Bridge
Jack
Transmit
Jack
B
RJ48
Line
Protection
Eq/V.54
Loop
Signal
Split
A
ROM
RAM
CPU
Loop
Set/Reset
SUPV
Port
Performance History,
Alarms, Unit Address
OUT
COM Bus
IN
Alarm
Contacts
(COM,
NO, NC)
BERT: QRSS,
1:8, 3:24, etc.
NET B
NET A
V.35 Interface
SD
RD
Tx Clk
Ext Clk
RTS
CD
DSR
TM
Rx Clk
AC Input, 110 VAC
TxPORT Customer Service
TxPORT
127 Jetplex Circle
Madison, Alabama 35758
888-4TxPORT / 800-926-0085 / 205-772-3770
Customer Service Returns: 800-926-0085, ext. 2227
Product Technical Support
Normal Hours - 8 a.m. to 5 p.m. Central, Monday – Friday
Telephone: 888-4TxPORT / 800-285-2755 / 205- 772-3770
Emergency - Nights / Weekends / Holidays:
Telephone: 800-285- 2755
E-Mail: [email protected]