Specifications

SQ: 5-61
RS3: Service Quick Reference Guide
Consoles
OI NV RAM Jumpers (continued)
Jumper PurposeValue
HD3 (RTCPWR) BAT&PS Hardwired
PS ONLY
HD4 (NVM SIZE) 512 KB Hardwired for number of RAM chips used
256KB Hardwired for number of RAM chips used
HD5 (PEERWAY
BOOT)
PWAY Force PeerWay boot
NORM Normal operation
HD7, HD10 R Run Normal Communications (RS-232)
L Communications Loopback Test (RS-232)
HD8, 9, 11, 12, 13 M
Function as a Modem (RS-232)
(Remove for Loopback Test)
T
Function as a Terminal (RS-232)
(Remove for Loopback Test)
HD15, 16, 17, 18 L Communications Loopback Test (RS-422)
R Run Normal Communications (RS-422)
HD19
(BD ADRR
DECODE)
2NDARY Address this board as S econdary (See text)
PRIMARY Address this board as Primary (See text)
HD20 M Function as a Modem (RS-422)
T
Function as a Terminal (RS-422)
(Hardwired for non-X.25 operation)
HD21 M
Function as a Modem (RS-422)
(Hardwired for non-X.25 operation)
T Function as a Terminal (RS-422)